US3389394A - Multiple frequency antenna - Google Patents
Multiple frequency antenna Download PDFInfo
- Publication number
- US3389394A US3389394A US509694A US50969465A US3389394A US 3389394 A US3389394 A US 3389394A US 509694 A US509694 A US 509694A US 50969465 A US50969465 A US 50969465A US 3389394 A US3389394 A US 3389394A
- Authority
- US
- United States
- Prior art keywords
- dielectric
- waveguide
- horn
- antenna
- low frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/06—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens
- H01Q19/08—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens for modifying the radiation pattern of a radiating horn in which it is located
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
- H01Q5/55—Feeding or matching arrangements for broad-band or multi-band operation for horn or waveguide antennas
Definitions
- the present invention relates generally to antennas and more particularly to antennas which are simultaneously operable at two or more widely separated frequency bands.
- the most serious problem involved in any attempt to provide a multiple frequency band antenna system is the prevention of interference between signal paths in the two or more bands of interest at the antenna or within the feed system. This includes not only the problem of interaction between transmitters, receivers, or both transmitters and receivers, utilizing a common antenna; but the problem of independent transmission, reception, or a combination of both, in such a system, with high aperture efficiency of all frequencies. Where alternate transmission and reception is permissible, as in radar systems, the former problem is solved by the use of duplexers, which are simply switching arrangements for connecting the antenna to the transmitter during the transmission interval with simultaneous disconnect of the receiver from the antenna, and vice versa during the reception interval.
- diplexers are circuit configurations designed to permit the required power feed to and/or from the antenna without interaction between the transmitters or receivers.
- a typical example of the latter usage is in television broadcasting, where a bridge arrangement (diplexer) for the turnstile antenna permits simultaneous transmission of picture and sound information, with suppression of interaction between the two transmitters.
- signal path isolation is maintained for the widely separated microwave frequencies of interest by the use of concentric circular waveguides in a combining network.
- One Waveguide terminates in a high frequency conical horn formed by a conductive cylindrical core having a flared inner diameter along a portion of its length, the core being inserted in the other waveguide and forming therewith a coaxial region for sustaining low frequency TM mode waves.
- the low frequency feed system includes orthogonally arranged coaxial probes coupled via a phasing network to the transmitter to produce circularly polarized waves in the coaxial region between the outer surface of the metal core and the inner wall of the larger diameter waveguide.
- the high frequency feed system includes a coaxial probe extending into a circular waveguide extension of the horn and coupled to a receiver, the waveguide extension including a conventional device for converting the received circularly polarized waves to linearly polarized Waves.
- the mismatch between the low and high frequency feeds is said to prevent cross-coupling of energy between transmitter and receiver from the signal frequencies of interest.
- Another object of the invention is to provide an antenna capable of simultaneous operation at two or more widely separated microwave frequencies with high aperture elficiency and low volume requirements.
- an embodiment of the present invention comprises an open ended waveguide excited by an appropriate low frequency feed, and a dielectric horn which serves as a guide for the higher frequencies introduced by another waveguide at the closed end of the first-mentioned waveguide.
- the dielectric horn is disposed in coextensive and coaxial relationship with the open ended waveguide and is operative to prevent the coupling of high frequency signal energy to the low frequency feed by the use of total internal reflection phenomena.
- a dielectric lens may be securely placed adjacent the mouth of the horn.
- antennas according to the present invention include high aperture efiiciency at all frequencies of the multiple and simultaneously usable bands of interest, with any desired polarization; low volume and weight; minimum cross-sectional area, attributable to high elficiency; capability of being arrayed with like units to provide high gain and low grating lobes; angle of arrival sensing capability when used in an array; applicability to airborne satellite communications and telemetry.
- FIGURE 1 is a sectional view of one embodiment of an antenna in accordance with the invention.
- FIGURE 2 is a view, partly in section, looking into the aperture of the antenna of FIGURE 1.
- the antenna comprises an open ended waveguide 10, of rectangular shape in the embodiment shown, although this is purely by way of example, having conductive side walls 12 and an end wall 14.
- An axial hole 17 and a plurality of holes 20 adjacent the perimeter are provided in end wall 14 to permit entry of other components of the antenna.
- the waveguide may be flared at the open end, if desired.
- Waveguide 10 is excited by balanced dipole probes 25 and 27 coupled by respective coaxial lines through holes 20 to suitable coaxial connectors 32 and 34 and thence to an appropriate low frequency microwave transmitter.
- Any desired polarization of the transmitted low frequency signal may be obtained by suitable placement of feeds in accordance with conventional techniques. For example, two pairs of orthogonal probes may be employed, if desired.
- Balanced dipole probes constitute in this embodi- In ent, low frequency feeds each driven out of phase with the signal driving the opposite dipole, and are vertically oriented to excite a TB mode in waveguide 10, the wave launched toward the open end of the guide.
- a solid dielectric member 40 is used to guide the high frequency waves.
- Member 40 acts as a dielectric horn by producing total internal reflection of the waves passing therethrough between the throat and the mouth of the horn.
- member 40 comprises a solid dielectric structure tapered or flared at an angle on the order of the complement of the critical angle of the particular dielectric used, and may be constructed in the shape of a cone or a pyramid.
- critical angle is used in its conventional sense, as meaning the angle defining the dividing line between total internal reflection and total or partial transmission of rays incident on the dielectric boundary constituting the flared surface of the guide.
- Suitable dielectric guide structure is disclosed in the copending applications of Bartlett et al., Ser. Nos. 413,819 and 438,582, entitled, Reflector Antennas and High Efficiency Dielectric Antenna, filed Nov. 25, 1964, and March 10, 1965, respectively. For purposes of clarity and convenience, however, a brief abstract of the pertinent description will be set forth herein.
- n n the ray will either be refracted, reflected, or partially refracted and partially reflected, depending upon the angle of incidence.
- n n the refractive index of the medium in which the ray is traveling prior to incidence at the boundary
- the trigonometric sine of the critical angle is equal to 1/ ⁇ /e Hence, by suitable selection of dielectric and flare angle, and proper design of the exciter in accordance with known techniques for placement of the phase center of the high frequency waves at or near the throat of the horn, substantially all of the waves introduced into the dielectric member 40 by waveguide 38 are prevented from leaving the boundary of the horn and are directed toward its mouth.
- a suitable flare angle is one on the order of the complement of the critical angle, and a suitable dielectric is any having a dielectric constant greater than one, such as polystyrene, Plexiglas, or other ordinary or artificial dielectrics.
- the dielectric constant of the horn should be greater than that of the medium surrounding its flared surface.
- the phase distribution across the mouth of horn 40 is a function of the relative phases of wave components radiated directly to that point from waveguide 38 through the dielectric medium and of Wave components intern-ally reflected from the boundary of the dielectric guide.
- a conventional dielectric lens 45 may be placed across the radiating aperture of the horn to correct this phase distribution.
- the dielectric lens is effective to delay a wave by an amount which depends upon the dielectric constant and the thickness of the dielectric (i.e., the length of dielectric material through which each wave component travels).
- dielectric lens 45 may be composed of an ordinary or an artificial dielectric material, consistent with the function to be served by these elements.
- the lens may be supported at or attached to the base (mouth) of the horn in any conventional manner.
- the higher frequency waves emanating from waveguide 38 are guided past the low frequency probes (e.g., 25 and 27) to prevent any interaction therebetween.
- the low frequency waves excited in waveguide 10 are not subjected to the same physical constraints as are placed upon the higher frequencies in the dielectric guide, and therefore travel through waveguide 10 with relatively little reflection or absorption caused by the presence of the dielectric horn.
- the dielectric horn does not significantly affect the low frequency performance since the energy storage fields produced by the dielectric interfaces extend out from the interface by an amount directly proportional to the wavelength and inversely proportional to the angle of incidence.
- the low frequency probes can couple to the low frequency signal without interfering with the high frequency waves trapped in the dielectric. Because the dielectric guide is non-conductive, the E field of the low frequency waves is not forced to fall to zero at the dielectric interface, as would otherwise be required by the boundary conditions imposed at a conductive surface.
- the overall structure and operation of the antenna results, therefore, in substantial elimination of aperture block by one feed of radiation at the frequency coupled to the other feed.
- operation is permitted at two or more widely separated frequencies with extremely high aperture efiiciency.
- a typical antenna utilizing concepts according to the present invention for use in the 200 to 290 megacycle and 2000 to 2500 megacycle bands would comprise a square open ended box having side dimensions of approximately 30 inches, with a solid Plexiglas (5:2.5) pyramidal or conical horn having its radiating aperture covered by a Plexiglas lens.
- the high frequency exciting waveguide (38) is preferably rectangular, while the conical horn shape would preferably utilize a circular waveguide.
- the low frequency probes may be coupled to coaxial connectors at the closed end of the box or at the sides, immediately adjacent the location of the probes themselves, with appropriate feed lines to the low frequency transmitter or receiver, as the case may be.
- waveguide 10 was of circular cross-section having a 4-inch inner diameter
- lens 45 was solid Plexiglas
- CW feed was employed.
- the E-plane radiation pattern of the antenna at a low frequency of 2.3 gigacycles showed a gain of 8.7 db with a 3 db beam width equal to 68; the H-plane pattern a gain of 8.7
- the E-plane pattern (with low frequency probes in the E-plane) showed antenna gain of 2.3 db, and the same gain for the H-plane radiation pattern (LP probes in the H-plane).
- a multiple frequency microwave antenna comprising a waveguide, means for coupling low frequency microwave signal energy to and from said waveguide, dielectric guide means disposed in coextensive and coaxial relationship with said waveguide internally thereof, and means for coupling high frequency microwave signal energy to and from said dielectric guide means.
- said waveguide is open at one end for radiating low frequency signals therefrom
- said dielectric guide means comprising a solid dielectric horn of substantially uniformly increasing cross-sectional area toward the open end of said waveguide to form a high frequency radiating aperture thereat, and wherein is further included a dielectric lens for correcting the phase distribution across said aperture.
- said waveguide has a closed end and an open end
- said means for coupling low frequency signal energy comprising a plurality of balanced dipole probes projecting into said waveguide
- said dielectric guide means comprising a flared solid dielectric horn having an increasing dimension in the direction of the open end of said waveguide
- said means for coupling high frequency signal energy comprising a further waveguide in electromagnetic signal translating relationship with said horn at the smaller end thereof.
- said dielectric horn has a dielectric constant greater than the dielectric constant of its surrounding medium, said horn having a flare angle on the order of the complement of guide for radiating the lower frequencies of said separated frequencies, means for exciting said waveguide at said lower frequencies, and means disposed interiorly of said waveguide for radiating the higher frequencies of said separated frequencies, the last-named means comprising a solid dielectric horn for establishing a boundary with the surrounding medium to substantially confine the propagation of electromagnetic waves interiorly of said boundary between the throat and the mouth of said horn.
- the antenna according to claim 6 further including a dielectric lens covering the mouth of said horn for correcting the phase distribution of waves at the radiating aperture.
Description
MULTIPLE FREQUENCY ANTENNA Filed Nov. 26, 1965 INVENTOR BERNARD L. LEWIS ATTORNEYS United States Patent 3,389,394 MULTIPLE FREQUENCY ANTENNA Bernard L. Lewis, Satellite Beach, Fla., assignor to Radiation Incorporated, Melbourne, Fla., a corporation of Florida Filed Nov. 26, 1965, Ser. No. 509,694 8 Claims. (Cl. 343-725) The present invention relates generally to antennas and more particularly to antennas which are simultaneously operable at two or more widely separated frequency bands.
The most serious problem involved in any attempt to provide a multiple frequency band antenna system is the prevention of interference between signal paths in the two or more bands of interest at the antenna or within the feed system. This includes not only the problem of interaction between transmitters, receivers, or both transmitters and receivers, utilizing a common antenna; but the problem of independent transmission, reception, or a combination of both, in such a system, with high aperture efficiency of all frequencies. Where alternate transmission and reception is permissible, as in radar systems, the former problem is solved by the use of duplexers, which are simply switching arrangements for connecting the antenna to the transmitter during the transmission interval with simultaneous disconnect of the receiver from the antenna, and vice versa during the reception interval. For continuous and simultaneous transmission and/or reception, on the other hand, it is conventional practice to utilize diplexers, which are circuit configurations designed to permit the required power feed to and/or from the antenna without interaction between the transmitters or receivers. A typical example of the latter usage is in television broadcasting, where a bridge arrangement (diplexer) for the turnstile antenna permits simultaneous transmission of picture and sound information, with suppression of interaction between the two transmitters.
Such arrangements, however, leave unsolved the prob- I lem of maintaining simultaneous, yet independent, transmission and/or reception using a common aperture-type antenna, with desirable high aperture efliciency at all frequencies. It is therefore a primary object of the present invention to provide an antenna which is adapted to operate with improved antenna efficiency on simultaneously used, widely spaced frequencies.
In one prior art system, signal path isolation is maintained for the widely separated microwave frequencies of interest by the use of concentric circular waveguides in a combining network. One Waveguide terminates in a high frequency conical horn formed by a conductive cylindrical core having a flared inner diameter along a portion of its length, the core being inserted in the other waveguide and forming therewith a coaxial region for sustaining low frequency TM mode waves. The low frequency feed system includes orthogonally arranged coaxial probes coupled via a phasing network to the transmitter to produce circularly polarized waves in the coaxial region between the outer surface of the metal core and the inner wall of the larger diameter waveguide. The high frequency feed system includes a coaxial probe extending into a circular waveguide extension of the horn and coupled to a receiver, the waveguide extension including a conventional device for converting the received circularly polarized waves to linearly polarized Waves. The mismatch between the low and high frequency feeds is said to prevent cross-coupling of energy between transmitter and receiver from the signal frequencies of interest.
Here, again, the problem of obtaining high aperture eiiiciency at all frequencies of interest remains unsolved. The metal horn for launching the high frequency signals 3,389,394 Patented June 18, 1968 forces the E field to fall to zero at the conducting walls in the H plane, resulting in aperture efliciencies considerably less than percent. Moreover, the high frequency horn acts as a significant aperture block for the low frequency signal; and although this effect can be matched out, it is accomplished at the expense of reduced bandwidth and increased sidelobe levels. High sidelobe levels result, in any event, from the aperture block of the large center conductor required to sustain the TM mode.
Accordingly, it is a further object of the present invention to provide a multiple frequency band antenna having structure and configuration for substantial elimination of aperture block by one feed of the radiation at another frequency.
Another object of the invention is to provide an antenna capable of simultaneous operation at two or more widely separated microwave frequencies with high aperture elficiency and low volume requirements.
Briefly, an embodiment of the present invention comprises an open ended waveguide excited by an appropriate low frequency feed, and a dielectric horn which serves as a guide for the higher frequencies introduced by another waveguide at the closed end of the first-mentioned waveguide. The dielectric horn is disposed in coextensive and coaxial relationship with the open ended waveguide and is operative to prevent the coupling of high frequency signal energy to the low frequency feed by the use of total internal reflection phenomena. To correct the phase distribution across the radiating aperture, a dielectric lens may be securely placed adjacent the mouth of the horn.
Advantages of antennas according to the present invention include high aperture efiiciency at all frequencies of the multiple and simultaneously usable bands of interest, with any desired polarization; low volume and weight; minimum cross-sectional area, attributable to high elficiency; capability of being arrayed with like units to provide high gain and low grating lobes; angle of arrival sensing capability when used in an array; applicability to airborne satellite communications and telemetry.
The above and still further objects, features and attendant advantages of the present invention will become apparent from a consideration of the following detailed description of one specific embodiment thereof, especially when taken in conjunction with the accompanying drawings, in which:
FIGURE 1 is a sectional view of one embodiment of an antenna in accordance with the invention; and
FIGURE 2 is a view, partly in section, looking into the aperture of the antenna of FIGURE 1.
Referring now to the drawings, wherein like reference numerals designate like components in the two figures, the antenna comprises an open ended waveguide 10, of rectangular shape in the embodiment shown, although this is purely by way of example, having conductive side walls 12 and an end wall 14. An axial hole 17 and a plurality of holes 20 adjacent the perimeter are provided in end wall 14 to permit entry of other components of the antenna. The waveguide may be flared at the open end, if desired.
, Waveguide 10 is excited by balanced dipole probes 25 and 27 coupled by respective coaxial lines through holes 20 to suitable coaxial connectors 32 and 34 and thence to an appropriate low frequency microwave transmitter. Any desired polarization of the transmitted low frequency signal may be obtained by suitable placement of feeds in accordance with conventional techniques. For example, two pairs of orthogonal probes may be employed, if desired. Balanced dipole probes constitute in this embodi- In ent, low frequency feeds each driven out of phase with the signal driving the opposite dipole, and are vertically oriented to excite a TB mode in waveguide 10, the wave launched toward the open end of the guide.
Higher microwave frequencies are introduced through a circular waveguide 38, for example, positioned at axial hole 17 of waveguide 10. In order to prevent energy in the high frequency waves from being coupled to the low frequency probes, a solid dielectric member 40 is used to guide the high frequency waves. Member 40 acts as a dielectric horn by producing total internal reflection of the waves passing therethrough between the throat and the mouth of the horn. To this end, member 40 comprises a solid dielectric structure tapered or flared at an angle on the order of the complement of the critical angle of the particular dielectric used, and may be constructed in the shape of a cone or a pyramid. The term critical angle is used in its conventional sense, as meaning the angle defining the dividing line between total internal reflection and total or partial transmission of rays incident on the dielectric boundary constituting the flared surface of the guide.
Suitable dielectric guide structure is disclosed in the copending applications of Bartlett et al., Ser. Nos. 413,819 and 438,582, entitled, Reflector Antennas and High Efficiency Dielectric Antenna, filed Nov. 25, 1964, and March 10, 1965, respectively. For purposes of clarity and convenience, however, a brief abstract of the pertinent description will be set forth herein.
In accordance with known optical principles, if an electromagnetic wave (or a ray representative of Poyntings vector for the wave) is incident upon the boundary separating two dielectric media each having a different index of refraction (n n the ray will either be refracted, reflected, or partially refracted and partially reflected, depending upon the angle of incidence. For angles of incidence greater than are sin n n (where n is the refractive index of the medium in which the ray is traveling prior to incidence at the boundary), there is total internal reflection of the ray. By use of the Maxwell relationship between dielectric constant (e) and refractive index, and assuming that the second dielectric is air (i.e., 6 1), as is true in this case, the trigonometric sine of the critical angle is equal to 1/\/e Hence, by suitable selection of dielectric and flare angle, and proper design of the exciter in accordance with known techniques for placement of the phase center of the high frequency waves at or near the throat of the horn, substantially all of the waves introduced into the dielectric member 40 by waveguide 38 are prevented from leaving the boundary of the horn and are directed toward its mouth. A suitable flare angle, as previously mentioned, is one on the order of the complement of the critical angle, and a suitable dielectric is any having a dielectric constant greater than one, such as polystyrene, Plexiglas, or other ordinary or artificial dielectrics. In general, the dielectric constant of the horn should be greater than that of the medium surrounding its flared surface.
The phase distribution across the mouth of horn 40 is a function of the relative phases of wave components radiated directly to that point from waveguide 38 through the dielectric medium and of Wave components intern-ally reflected from the boundary of the dielectric guide. A conventional dielectric lens 45 may be placed across the radiating aperture of the horn to correct this phase distribution. As is well known, the dielectric lens is effective to delay a wave by an amount which depends upon the dielectric constant and the thickness of the dielectric (i.e., the length of dielectric material through which each wave component travels). As in the case of dielectric horn 40, dielectric lens 45 may be composed of an ordinary or an artificial dielectric material, consistent with the function to be served by these elements. The lens may be supported at or attached to the base (mouth) of the horn in any conventional manner.
By virtue of the use of dielectric horn 40 in the antenna shown in the drawings, the higher frequency waves emanating from waveguide 38 are guided past the low frequency probes (e.g., 25 and 27) to prevent any interaction therebetween. The low frequency waves excited in waveguide 10, on the other hand, are not subjected to the same physical constraints as are placed upon the higher frequencies in the dielectric guide, and therefore travel through waveguide 10 with relatively little reflection or absorption caused by the presence of the dielectric horn. It will be noted that the dielectric horn does not significantly affect the low frequency performance since the energy storage fields produced by the dielectric interfaces extend out from the interface by an amount directly proportional to the wavelength and inversely proportional to the angle of incidence. Thus, the low frequency probes can couple to the low frequency signal without interfering with the high frequency waves trapped in the dielectric. Because the dielectric guide is non-conductive, the E field of the low frequency waves is not forced to fall to zero at the dielectric interface, as would otherwise be required by the boundary conditions imposed at a conductive surface.
The overall structure and operation of the antenna results, therefore, in substantial elimination of aperture block by one feed of radiation at the frequency coupled to the other feed. As a consequence of the non-interaction between signal paths, operation is permitted at two or more widely separated frequencies with extremely high aperture efiiciency.
A typical antenna utilizing concepts according to the present invention for use in the 200 to 290 megacycle and 2000 to 2500 megacycle bands would comprise a square open ended box having side dimensions of approximately 30 inches, with a solid Plexiglas (5:2.5) pyramidal or conical horn having its radiating aperture covered by a Plexiglas lens. For a pyramidal horn the high frequency exciting waveguide (38) is preferably rectangular, while the conical horn shape would preferably utilize a circular waveguide. The low frequency probes (dipole feeds, such as 25 and 27) may be coupled to coaxial connectors at the closed end of the box or at the sides, immediately adjacent the location of the probes themselves, with appropriate feed lines to the low frequency transmitter or receiver, as the case may be.
It is to be emphasized that the shape, dimensions and materials of the component parts of the antenna as set forth herein are purely illustrative. In a cylindrical model of the antenna, waveguide 10 was of circular cross-section having a 4-inch inner diameter, dielectric guide 40 was a solid Plexiglas -:=2.5) cone, lens 45 was solid Plexiglas, and CW feed was employed. The E-plane radiation pattern of the antenna at a low frequency of 2.3 gigacycles showed a gain of 8.7 db with a 3 db beam width equal to 68; the H-plane pattern a gain of 8.7
db with 3 db beam width equal to 74. At the high frequency of 17.2 gigacycles, the E-plane pattern (with low frequency probes in the E-plane) showed antenna gain of 2.3 db, and the same gain for the H-plane radiation pattern (LP probes in the H-plane).
While I have disclosed a specific embodiment of my invention, it would be apparent that variations in the particular details of construction shown and described may be resorted to without departing from the spirit and scope of the invention, as defined by the appended claims.
I claim:
1. A multiple frequency microwave antenna comprising a waveguide, means for coupling low frequency microwave signal energy to and from said waveguide, dielectric guide means disposed in coextensive and coaxial relationship with said waveguide internally thereof, and means for coupling high frequency microwave signal energy to and from said dielectric guide means.
2. The combination according to claim 1 wherein said waveguide is open at one end for radiating low frequency signals therefrom, said dielectric guide means comprising a solid dielectric horn of substantially uniformly increasing cross-sectional area toward the open end of said waveguide to form a high frequency radiating aperture thereat, and wherein is further included a dielectric lens for correcting the phase distribution across said aperture.
3. The combination according to claim 1 wherein said waveguide has a closed end and an open end, said means for coupling low frequency signal energy comprising a plurality of balanced dipole probes projecting into said waveguide, said dielectric guide means comprising a flared solid dielectric horn having an increasing dimension in the direction of the open end of said waveguide, and said means for coupling high frequency signal energy comprising a further waveguide in electromagnetic signal translating relationship with said horn at the smaller end thereof.
4. The combination according to claim 3 wherein said dielectric horn has a dielectric constant greater than the dielectric constant of its surrounding medium, said horn having a flare angle on the order of the complement of guide for radiating the lower frequencies of said separated frequencies, means for exciting said waveguide at said lower frequencies, and means disposed interiorly of said waveguide for radiating the higher frequencies of said separated frequencies, the last-named means comprising a solid dielectric horn for establishing a boundary with the surrounding medium to substantially confine the propagation of electromagnetic waves interiorly of said boundary between the throat and the mouth of said horn.
7. The antenna according to claim 6 further including a dielectric lens covering the mouth of said horn for correcting the phase distribution of waves at the radiating aperture.
'8. The aperture according to claim 7 wherein said horn has a flare angle on the order of the complement of the critical angle defining total internal reflection of electromagnetic waves propagating therethrough, and a dielectric constant greater than that of said surrounding medium.
References Cited UNITED STATES PATENTS 3,325,817 6/1967 Ajoika et a1. 343-786 3,100,894 8/1963 Giller et a1. 343776 X 2,895,127 7/1959 Padgett 343-725 X ELI LIEBERMAN, Primary Examiner.
Claims (1)
1. A MULTIPLE FREQUENCY MICROWAVE ANTENNA COMPRISING A WAVEGUIDE, MEANS FOR COUPLING LOW FREQUENCY MICROWAVE SIGNAL ENERGY TO AND FROM SAID WAVEGUIDE, DIELECTRIC GUIDE MEANS DISPOSED IN COEXTENSIVE AND COAXIAL RELATIONSHIP WITH SAID WAVEGUIDE INTERNALLY THEREOF, AND MEANS FOR COUPLING HIGH FREQUENCY MICROWAVE SIGNAL ENERGY TO AND FROM SAID DIELECTRIC GUIDE MEANS.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US509694A US3389394A (en) | 1965-11-26 | 1965-11-26 | Multiple frequency antenna |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US509694A US3389394A (en) | 1965-11-26 | 1965-11-26 | Multiple frequency antenna |
Publications (1)
Publication Number | Publication Date |
---|---|
US3389394A true US3389394A (en) | 1968-06-18 |
Family
ID=24027718
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US509694A Expired - Lifetime US3389394A (en) | 1965-11-26 | 1965-11-26 | Multiple frequency antenna |
Country Status (1)
Country | Link |
---|---|
US (1) | US3389394A (en) |
Cited By (297)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3482248A (en) * | 1967-07-31 | 1969-12-02 | Us Army | Multifrequency common aperture manifold antenna |
US3550139A (en) * | 1968-07-05 | 1970-12-22 | North American Rockwell | Hemispherical dielectric lens type antenna employing a uniform dielectric |
US3573833A (en) * | 1969-07-22 | 1971-04-06 | Hughes Aircraft Co | Broadband dielectric lens antenna fed by multiconductor quasi-tem lines |
JPS4882751A (en) * | 1972-02-05 | 1973-11-05 | ||
JPS52138853A (en) * | 1975-11-26 | 1977-11-19 | Nippon Telegr & Teleph Corp <Ntt> | Beam mode exciter |
US4199764A (en) * | 1979-01-31 | 1980-04-22 | Nasa | Dual band combiner for horn antenna |
JPS5628503A (en) * | 1979-12-31 | 1981-03-20 | Nec Corp | Lens antenna |
US4290068A (en) * | 1979-12-14 | 1981-09-15 | Bogner Richard D | Microwave television system |
US4307404A (en) * | 1978-03-20 | 1981-12-22 | Harris Corporation | Dichroic scanner for conscan antenna feed systems |
FR2548466A1 (en) * | 1983-07-01 | 1985-01-04 | Radiotechnique Compelec | EMISSION-RECEPTION DEVICE FOR PRESENCE DETECTION RADAR, AND METHOD FOR REALIZING SAME |
EP0215535A1 (en) * | 1985-09-09 | 1987-03-25 | Satellite Technology Services, Inc. | Dual frequency feed |
US4658267A (en) * | 1984-10-31 | 1987-04-14 | Raytheon Company | Ridged waveguide antenna with plural feed inputs |
US4785306A (en) * | 1986-01-17 | 1988-11-15 | General Instrument Corporation | Dual frequency feed satellite antenna horn |
US4866454A (en) * | 1987-03-04 | 1989-09-12 | Droessler Justin G | Multi-spectral imaging system |
WO1990013927A1 (en) * | 1989-05-03 | 1990-11-15 | The University Of Lancaster | Antenna system |
WO1991015879A1 (en) * | 1990-04-06 | 1991-10-17 | Microbeam Corporation | Electromagnetic antenna collimator |
US5184141A (en) * | 1990-04-05 | 1993-02-02 | Vought Aircraft Company | Structurally-embedded electronics assembly |
US5216432A (en) * | 1992-02-06 | 1993-06-01 | California Amplifier | Dual mode/dual band feed structure |
US5248987A (en) * | 1991-12-31 | 1993-09-28 | Massachusetts Institute Of Technology | Widebeam antenna |
US5406298A (en) * | 1985-04-01 | 1995-04-11 | The United States Of America As Represented By The Secretary Of The Navy | Small wideband passive/active antenna |
US5640168A (en) * | 1995-08-11 | 1997-06-17 | Zircon Corporation | Ultra wide-band radar antenna for concrete penetration |
US6480164B2 (en) | 2000-08-03 | 2002-11-12 | Ronald S. Posner | Corrective dielectric lens feed system |
US6661389B2 (en) * | 2000-11-20 | 2003-12-09 | Vega Grieshaber Kg | Horn antenna for a radar device |
WO2006127610A2 (en) * | 2005-05-23 | 2006-11-30 | General Dynamics Satcom Technologies, Inc. | Tri-band circularly-polarized antenna for a satellite communications ground terminal |
US20090262038A1 (en) * | 2008-04-21 | 2009-10-22 | Krohne Messtechnik Gmbh & Co. Kg | Dielectric antenna |
US7737894B2 (en) * | 2007-05-31 | 2010-06-15 | Intel Corporation | CMOS IC and high-gain antenna integration for point-to-point wireless communication |
US7786946B2 (en) * | 2006-12-22 | 2010-08-31 | Arizona Board Of Regents For And On Behalf Of Arizona State University | Hollow dielectric pipe polyrod antenna |
US20110050527A1 (en) * | 2009-09-01 | 2011-03-03 | Anderson Joseph M | Broadband/Multi-Band Horn Antenna With Compact Integrated Feed |
DE10057441B4 (en) * | 2000-11-20 | 2014-02-13 | Vega Grieshaber Kg | Horn antenna for a radar device |
US9119127B1 (en) | 2012-12-05 | 2015-08-25 | At&T Intellectual Property I, Lp | Backhaul link for distributed antenna system |
US9154966B2 (en) | 2013-11-06 | 2015-10-06 | At&T Intellectual Property I, Lp | Surface-wave communications and methods thereof |
US9209902B2 (en) | 2013-12-10 | 2015-12-08 | At&T Intellectual Property I, L.P. | Quasi-optical coupler |
US9312919B1 (en) | 2014-10-21 | 2016-04-12 | At&T Intellectual Property I, Lp | Transmission device with impairment compensation and methods for use therewith |
US9461706B1 (en) | 2015-07-31 | 2016-10-04 | At&T Intellectual Property I, Lp | Method and apparatus for exchanging communication signals |
US9490869B1 (en) | 2015-05-14 | 2016-11-08 | At&T Intellectual Property I, L.P. | Transmission medium having multiple cores and methods for use therewith |
US9503189B2 (en) | 2014-10-10 | 2016-11-22 | At&T Intellectual Property I, L.P. | Method and apparatus for arranging communication sessions in a communication system |
US9509415B1 (en) | 2015-06-25 | 2016-11-29 | At&T Intellectual Property I, L.P. | Methods and apparatus for inducing a fundamental wave mode on a transmission medium |
US9520945B2 (en) | 2014-10-21 | 2016-12-13 | At&T Intellectual Property I, L.P. | Apparatus for providing communication services and methods thereof |
US9525524B2 (en) | 2013-05-31 | 2016-12-20 | At&T Intellectual Property I, L.P. | Remote distributed antenna system |
US9525210B2 (en) | 2014-10-21 | 2016-12-20 | At&T Intellectual Property I, L.P. | Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith |
US9531427B2 (en) | 2014-11-20 | 2016-12-27 | At&T Intellectual Property I, L.P. | Transmission device with mode division multiplexing and methods for use therewith |
US9564947B2 (en) | 2014-10-21 | 2017-02-07 | At&T Intellectual Property I, L.P. | Guided-wave transmission device with diversity and methods for use therewith |
US9577307B2 (en) | 2014-10-21 | 2017-02-21 | At&T Intellectual Property I, L.P. | Guided-wave transmission device and methods for use therewith |
US9608692B2 (en) | 2015-06-11 | 2017-03-28 | At&T Intellectual Property I, L.P. | Repeater and methods for use therewith |
US9608740B2 (en) | 2015-07-15 | 2017-03-28 | At&T Intellectual Property I, L.P. | Method and apparatus for launching a wave mode that mitigates interference |
US9615269B2 (en) | 2014-10-02 | 2017-04-04 | At&T Intellectual Property I, L.P. | Method and apparatus that provides fault tolerance in a communication network |
US9628116B2 (en) | 2015-07-14 | 2017-04-18 | At&T Intellectual Property I, L.P. | Apparatus and methods for transmitting wireless signals |
US9628854B2 (en) | 2014-09-29 | 2017-04-18 | At&T Intellectual Property I, L.P. | Method and apparatus for distributing content in a communication network |
US20170110804A1 (en) * | 2015-10-16 | 2017-04-20 | At&T Intellectual Property I, Lp | Antenna structure for exchanging wireless signals |
US9640850B2 (en) | 2015-06-25 | 2017-05-02 | At&T Intellectual Property I, L.P. | Methods and apparatus for inducing a non-fundamental wave mode on a transmission medium |
US9654173B2 (en) | 2014-11-20 | 2017-05-16 | At&T Intellectual Property I, L.P. | Apparatus for powering a communication device and methods thereof |
US9653770B2 (en) | 2014-10-21 | 2017-05-16 | At&T Intellectual Property I, L.P. | Guided wave coupler, coupling module and methods for use therewith |
US20170141474A1 (en) * | 2015-11-13 | 2017-05-18 | Vega Grieshaber Kg | Horn antenna and radar level gauge comprising a horn antenna |
US9667317B2 (en) | 2015-06-15 | 2017-05-30 | At&T Intellectual Property I, L.P. | Method and apparatus for providing security using network traffic adjustments |
US9680670B2 (en) | 2014-11-20 | 2017-06-13 | At&T Intellectual Property I, L.P. | Transmission device with channel equalization and control and methods for use therewith |
US9685992B2 (en) | 2014-10-03 | 2017-06-20 | At&T Intellectual Property I, L.P. | Circuit panel network and methods thereof |
US9692101B2 (en) | 2014-08-26 | 2017-06-27 | At&T Intellectual Property I, L.P. | Guided wave couplers for coupling electromagnetic waves between a waveguide surface and a surface of a wire |
US9705561B2 (en) | 2015-04-24 | 2017-07-11 | At&T Intellectual Property I, L.P. | Directional coupling device and methods for use therewith |
US9705571B2 (en) | 2015-09-16 | 2017-07-11 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system |
US9722318B2 (en) | 2015-07-14 | 2017-08-01 | At&T Intellectual Property I, L.P. | Method and apparatus for coupling an antenna to a device |
US9729197B2 (en) | 2015-10-01 | 2017-08-08 | At&T Intellectual Property I, L.P. | Method and apparatus for communicating network management traffic over a network |
US9735833B2 (en) | 2015-07-31 | 2017-08-15 | At&T Intellectual Property I, L.P. | Method and apparatus for communications management in a neighborhood network |
US9742462B2 (en) | 2014-12-04 | 2017-08-22 | At&T Intellectual Property I, L.P. | Transmission medium and communication interfaces and methods for use therewith |
US9748626B2 (en) | 2015-05-14 | 2017-08-29 | At&T Intellectual Property I, L.P. | Plurality of cables having different cross-sectional shapes which are bundled together to form a transmission medium |
US9749053B2 (en) | 2015-07-23 | 2017-08-29 | At&T Intellectual Property I, L.P. | Node device, repeater and methods for use therewith |
US9749013B2 (en) | 2015-03-17 | 2017-08-29 | At&T Intellectual Property I, L.P. | Method and apparatus for reducing attenuation of electromagnetic waves guided by a transmission medium |
US9755697B2 (en) | 2014-09-15 | 2017-09-05 | At&T Intellectual Property I, L.P. | Method and apparatus for sensing a condition in a transmission medium of electromagnetic waves |
US9762289B2 (en) | 2014-10-14 | 2017-09-12 | At&T Intellectual Property I, L.P. | Method and apparatus for transmitting or receiving signals in a transportation system |
US9769128B2 (en) | 2015-09-28 | 2017-09-19 | At&T Intellectual Property I, L.P. | Method and apparatus for encryption of communications over a network |
US9769020B2 (en) | 2014-10-21 | 2017-09-19 | At&T Intellectual Property I, L.P. | Method and apparatus for responding to events affecting communications in a communication network |
US9780834B2 (en) | 2014-10-21 | 2017-10-03 | At&T Intellectual Property I, L.P. | Method and apparatus for transmitting electromagnetic waves |
US9793951B2 (en) | 2015-07-15 | 2017-10-17 | At&T Intellectual Property I, L.P. | Method and apparatus for launching a wave mode that mitigates interference |
US9793955B2 (en) | 2015-04-24 | 2017-10-17 | At&T Intellectual Property I, Lp | Passive electrical coupling device and methods for use therewith |
US9793954B2 (en) | 2015-04-28 | 2017-10-17 | At&T Intellectual Property I, L.P. | Magnetic coupling device and methods for use therewith |
US9800327B2 (en) | 2014-11-20 | 2017-10-24 | At&T Intellectual Property I, L.P. | Apparatus for controlling operations of a communication device and methods thereof |
US9820146B2 (en) | 2015-06-12 | 2017-11-14 | At&T Intellectual Property I, L.P. | Method and apparatus for authentication and identity management of communicating devices |
US9836957B2 (en) | 2015-07-14 | 2017-12-05 | At&T Intellectual Property I, L.P. | Method and apparatus for communicating with premises equipment |
US9838896B1 (en) | 2016-12-09 | 2017-12-05 | At&T Intellectual Property I, L.P. | Method and apparatus for assessing network coverage |
US9847850B2 (en) | 2014-10-14 | 2017-12-19 | At&T Intellectual Property I, L.P. | Method and apparatus for adjusting a mode of communication in a communication network |
US9847566B2 (en) | 2015-07-14 | 2017-12-19 | At&T Intellectual Property I, L.P. | Method and apparatus for adjusting a field of a signal to mitigate interference |
US9853342B2 (en) | 2015-07-14 | 2017-12-26 | At&T Intellectual Property I, L.P. | Dielectric transmission medium connector and methods for use therewith |
US9860075B1 (en) | 2016-08-26 | 2018-01-02 | At&T Intellectual Property I, L.P. | Method and communication node for broadband distribution |
US9866309B2 (en) | 2015-06-03 | 2018-01-09 | At&T Intellectual Property I, Lp | Host node device and methods for use therewith |
US9865911B2 (en) | 2015-06-25 | 2018-01-09 | At&T Intellectual Property I, L.P. | Waveguide system for slot radiating first electromagnetic waves that are combined into a non-fundamental wave mode second electromagnetic wave on a transmission medium |
US9871282B2 (en) | 2015-05-14 | 2018-01-16 | At&T Intellectual Property I, L.P. | At least one transmission medium having a dielectric surface that is covered at least in part by a second dielectric |
US9871283B2 (en) | 2015-07-23 | 2018-01-16 | At&T Intellectual Property I, Lp | Transmission medium having a dielectric core comprised of plural members connected by a ball and socket configuration |
US9876605B1 (en) | 2016-10-21 | 2018-01-23 | At&T Intellectual Property I, L.P. | Launcher and coupling system to support desired guided wave mode |
US9876571B2 (en) | 2015-02-20 | 2018-01-23 | At&T Intellectual Property I, Lp | Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith |
US9876264B2 (en) | 2015-10-02 | 2018-01-23 | At&T Intellectual Property I, Lp | Communication system, guided wave switch and methods for use therewith |
US9882277B2 (en) | 2015-10-02 | 2018-01-30 | At&T Intellectual Property I, Lp | Communication device and antenna assembly with actuated gimbal mount |
US9882257B2 (en) | 2015-07-14 | 2018-01-30 | At&T Intellectual Property I, L.P. | Method and apparatus for launching a wave mode that mitigates interference |
US9893795B1 (en) | 2016-12-07 | 2018-02-13 | At&T Intellectual Property I, Lp | Method and repeater for broadband distribution |
US9904535B2 (en) | 2015-09-14 | 2018-02-27 | At&T Intellectual Property I, L.P. | Method and apparatus for distributing software |
US9906269B2 (en) | 2014-09-17 | 2018-02-27 | At&T Intellectual Property I, L.P. | Monitoring and mitigating conditions in a communication network |
US9912027B2 (en) | 2015-07-23 | 2018-03-06 | At&T Intellectual Property I, L.P. | Method and apparatus for exchanging communication signals |
US9911020B1 (en) | 2016-12-08 | 2018-03-06 | At&T Intellectual Property I, L.P. | Method and apparatus for tracking via a radio frequency identification device |
US9912381B2 (en) | 2015-06-03 | 2018-03-06 | At&T Intellectual Property I, Lp | Network termination and methods for use therewith |
US9913139B2 (en) | 2015-06-09 | 2018-03-06 | At&T Intellectual Property I, L.P. | Signal fingerprinting for authentication of communicating devices |
US9912419B1 (en) | 2016-08-24 | 2018-03-06 | At&T Intellectual Property I, L.P. | Method and apparatus for managing a fault in a distributed antenna system |
US9917341B2 (en) | 2015-05-27 | 2018-03-13 | At&T Intellectual Property I, L.P. | Apparatus and method for launching electromagnetic waves and for modifying radial dimensions of the propagating electromagnetic waves |
US9927517B1 (en) | 2016-12-06 | 2018-03-27 | At&T Intellectual Property I, L.P. | Apparatus and methods for sensing rainfall |
US9948354B2 (en) | 2015-04-28 | 2018-04-17 | At&T Intellectual Property I, L.P. | Magnetic coupling device with reflective plate and methods for use therewith |
US9948333B2 (en) | 2015-07-23 | 2018-04-17 | At&T Intellectual Property I, L.P. | Method and apparatus for wireless communications to mitigate interference |
US9954287B2 (en) | 2014-11-20 | 2018-04-24 | At&T Intellectual Property I, L.P. | Apparatus for converting wireless signals and electromagnetic waves and methods thereof |
US9967173B2 (en) | 2015-07-31 | 2018-05-08 | At&T Intellectual Property I, L.P. | Method and apparatus for authentication and identity management of communicating devices |
US9973940B1 (en) | 2017-02-27 | 2018-05-15 | At&T Intellectual Property I, L.P. | Apparatus and methods for dynamic impedance matching of a guided wave launcher |
US20180145414A1 (en) * | 2016-11-23 | 2018-05-24 | At&T Intellectual Property I, L.P. | Antenna system and methods for use therewith |
US9991580B2 (en) | 2016-10-21 | 2018-06-05 | At&T Intellectual Property I, L.P. | Launcher and coupling system for guided wave mode cancellation |
US9999038B2 (en) | 2013-05-31 | 2018-06-12 | At&T Intellectual Property I, L.P. | Remote distributed antenna system |
US9997819B2 (en) | 2015-06-09 | 2018-06-12 | At&T Intellectual Property I, L.P. | Transmission medium and method for facilitating propagation of electromagnetic waves via a core |
US9998870B1 (en) | 2016-12-08 | 2018-06-12 | At&T Intellectual Property I, L.P. | Method and apparatus for proximity sensing |
US10009065B2 (en) | 2012-12-05 | 2018-06-26 | At&T Intellectual Property I, L.P. | Backhaul link for distributed antenna system |
US10009067B2 (en) | 2014-12-04 | 2018-06-26 | At&T Intellectual Property I, L.P. | Method and apparatus for configuring a communication interface |
US10009901B2 (en) | 2015-09-16 | 2018-06-26 | At&T Intellectual Property I, L.P. | Method, apparatus, and computer-readable storage medium for managing utilization of wireless resources between base stations |
US10009063B2 (en) | 2015-09-16 | 2018-06-26 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having an out-of-band reference signal |
US10020844B2 (en) | 2016-12-06 | 2018-07-10 | T&T Intellectual Property I, L.P. | Method and apparatus for broadcast communication via guided waves |
US10020587B2 (en) | 2015-07-31 | 2018-07-10 | At&T Intellectual Property I, L.P. | Radial antenna and methods for use therewith |
US10027397B2 (en) | 2016-12-07 | 2018-07-17 | At&T Intellectual Property I, L.P. | Distributed antenna system and methods for use therewith |
US10033107B2 (en) | 2015-07-14 | 2018-07-24 | At&T Intellectual Property I, L.P. | Method and apparatus for coupling an antenna to a device |
US10033108B2 (en) | 2015-07-14 | 2018-07-24 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating an electromagnetic wave having a wave mode that mitigates interference |
US10044409B2 (en) | 2015-07-14 | 2018-08-07 | At&T Intellectual Property I, L.P. | Transmission medium and methods for use therewith |
US10051483B2 (en) | 2015-10-16 | 2018-08-14 | At&T Intellectual Property I, L.P. | Method and apparatus for directing wireless signals |
US10051629B2 (en) | 2015-09-16 | 2018-08-14 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having an in-band reference signal |
US10069535B2 (en) | 2016-12-08 | 2018-09-04 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching electromagnetic waves having a certain electric field structure |
US10074890B2 (en) | 2015-10-02 | 2018-09-11 | At&T Intellectual Property I, L.P. | Communication device and antenna with integrated light assembly |
US10079661B2 (en) | 2015-09-16 | 2018-09-18 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having a clock reference |
US10090594B2 (en) | 2016-11-23 | 2018-10-02 | At&T Intellectual Property I, L.P. | Antenna system having structural configurations for assembly |
US10090606B2 (en) | 2015-07-15 | 2018-10-02 | At&T Intellectual Property I, L.P. | Antenna system with dielectric array and methods for use therewith |
US10103801B2 (en) | 2015-06-03 | 2018-10-16 | At&T Intellectual Property I, L.P. | Host node device and methods for use therewith |
US10103422B2 (en) | 2016-12-08 | 2018-10-16 | At&T Intellectual Property I, L.P. | Method and apparatus for mounting network devices |
US10129057B2 (en) | 2015-07-14 | 2018-11-13 | At&T Intellectual Property I, L.P. | Apparatus and methods for inducing electromagnetic waves on a cable |
US10135146B2 (en) | 2016-10-18 | 2018-11-20 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching guided waves via circuits |
US10135147B2 (en) | 2016-10-18 | 2018-11-20 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching guided waves via an antenna |
US10135145B2 (en) | 2016-12-06 | 2018-11-20 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating an electromagnetic wave along a transmission medium |
US10136434B2 (en) | 2015-09-16 | 2018-11-20 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having an ultra-wideband control channel |
US10139820B2 (en) | 2016-12-07 | 2018-11-27 | At&T Intellectual Property I, L.P. | Method and apparatus for deploying equipment of a communication system |
US10142086B2 (en) | 2015-06-11 | 2018-11-27 | At&T Intellectual Property I, L.P. | Repeater and methods for use therewith |
US10144036B2 (en) | 2015-01-30 | 2018-12-04 | At&T Intellectual Property I, L.P. | Method and apparatus for mitigating interference affecting a propagation of electromagnetic waves guided by a transmission medium |
US10148016B2 (en) | 2015-07-14 | 2018-12-04 | At&T Intellectual Property I, L.P. | Apparatus and methods for communicating utilizing an antenna array |
US10154493B2 (en) | 2015-06-03 | 2018-12-11 | At&T Intellectual Property I, L.P. | Network termination and methods for use therewith |
US10168695B2 (en) | 2016-12-07 | 2019-01-01 | At&T Intellectual Property I, L.P. | Method and apparatus for controlling an unmanned aircraft |
US10170840B2 (en) | 2015-07-14 | 2019-01-01 | At&T Intellectual Property I, L.P. | Apparatus and methods for sending or receiving electromagnetic signals |
US10178445B2 (en) | 2016-11-23 | 2019-01-08 | At&T Intellectual Property I, L.P. | Methods, devices, and systems for load balancing between a plurality of waveguides |
US10205655B2 (en) | 2015-07-14 | 2019-02-12 | At&T Intellectual Property I, L.P. | Apparatus and methods for communicating utilizing an antenna array and multiple communication paths |
US10224634B2 (en) | 2016-11-03 | 2019-03-05 | At&T Intellectual Property I, L.P. | Methods and apparatus for adjusting an operational characteristic of an antenna |
US10225025B2 (en) | 2016-11-03 | 2019-03-05 | At&T Intellectual Property I, L.P. | Method and apparatus for detecting a fault in a communication system |
US10243270B2 (en) | 2016-12-07 | 2019-03-26 | At&T Intellectual Property I, L.P. | Beam adaptive multi-feed dielectric antenna system and methods for use therewith |
US10243784B2 (en) | 2014-11-20 | 2019-03-26 | At&T Intellectual Property I, L.P. | System for generating topology information and methods thereof |
US10264586B2 (en) | 2016-12-09 | 2019-04-16 | At&T Mobility Ii Llc | Cloud-based packet controller and methods for use therewith |
US10291311B2 (en) | 2016-09-09 | 2019-05-14 | At&T Intellectual Property I, L.P. | Method and apparatus for mitigating a fault in a distributed antenna system |
US10291334B2 (en) | 2016-11-03 | 2019-05-14 | At&T Intellectual Property I, L.P. | System for detecting a fault in a communication system |
US10298293B2 (en) | 2017-03-13 | 2019-05-21 | At&T Intellectual Property I, L.P. | Apparatus of communication utilizing wireless network devices |
US10305190B2 (en) | 2016-12-01 | 2019-05-28 | At&T Intellectual Property I, L.P. | Reflecting dielectric antenna system and methods for use therewith |
US10312567B2 (en) | 2016-10-26 | 2019-06-04 | At&T Intellectual Property I, L.P. | Launcher with planar strip antenna and methods for use therewith |
US10320586B2 (en) | 2015-07-14 | 2019-06-11 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating non-interfering electromagnetic waves on an insulated transmission medium |
US10326689B2 (en) | 2016-12-08 | 2019-06-18 | At&T Intellectual Property I, L.P. | Method and system for providing alternative communication paths |
US10326494B2 (en) | 2016-12-06 | 2019-06-18 | At&T Intellectual Property I, L.P. | Apparatus for measurement de-embedding and methods for use therewith |
US10340603B2 (en) | 2016-11-23 | 2019-07-02 | At&T Intellectual Property I, L.P. | Antenna system having shielded structural configurations for assembly |
US10340983B2 (en) | 2016-12-09 | 2019-07-02 | At&T Intellectual Property I, L.P. | Method and apparatus for surveying remote sites via guided wave communications |
US10340573B2 (en) | 2016-10-26 | 2019-07-02 | At&T Intellectual Property I, L.P. | Launcher with cylindrical coupling device and methods for use therewith |
US10341142B2 (en) | 2015-07-14 | 2019-07-02 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating non-interfering electromagnetic waves on an uninsulated conductor |
US10340600B2 (en) | 2016-10-18 | 2019-07-02 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching guided waves via plural waveguide systems |
US10340601B2 (en) | 2016-11-23 | 2019-07-02 | At&T Intellectual Property I, L.P. | Multi-antenna system and methods for use therewith |
US10348391B2 (en) | 2015-06-03 | 2019-07-09 | At&T Intellectual Property I, L.P. | Client node device with frequency conversion and methods for use therewith |
US10361489B2 (en) | 2016-12-01 | 2019-07-23 | At&T Intellectual Property I, L.P. | Dielectric dish antenna system and methods for use therewith |
US10359749B2 (en) | 2016-12-07 | 2019-07-23 | At&T Intellectual Property I, L.P. | Method and apparatus for utilities management via guided wave communication |
US10374316B2 (en) | 2016-10-21 | 2019-08-06 | At&T Intellectual Property I, L.P. | System and dielectric antenna with non-uniform dielectric |
US10382976B2 (en) | 2016-12-06 | 2019-08-13 | At&T Intellectual Property I, L.P. | Method and apparatus for managing wireless communications based on communication paths and network device positions |
US10389029B2 (en) | 2016-12-07 | 2019-08-20 | At&T Intellectual Property I, L.P. | Multi-feed dielectric antenna system with core selection and methods for use therewith |
US10389037B2 (en) | 2016-12-08 | 2019-08-20 | At&T Intellectual Property I, L.P. | Apparatus and methods for selecting sections of an antenna array and use therewith |
US10396887B2 (en) | 2015-06-03 | 2019-08-27 | At&T Intellectual Property I, L.P. | Client node device and methods for use therewith |
US10411356B2 (en) | 2016-12-08 | 2019-09-10 | At&T Intellectual Property I, L.P. | Apparatus and methods for selectively targeting communication devices with an antenna array |
US10439290B2 (en) | 2015-07-14 | 2019-10-08 | At&T Intellectual Property I, L.P. | Apparatus and methods for wireless communications |
US10439675B2 (en) | 2016-12-06 | 2019-10-08 | At&T Intellectual Property I, L.P. | Method and apparatus for repeating guided wave communication signals |
US10446936B2 (en) | 2016-12-07 | 2019-10-15 | At&T Intellectual Property I, L.P. | Multi-feed dielectric antenna system and methods for use therewith |
US10498044B2 (en) | 2016-11-03 | 2019-12-03 | At&T Intellectual Property I, L.P. | Apparatus for configuring a surface of an antenna |
US10511346B2 (en) | 2015-07-14 | 2019-12-17 | At&T Intellectual Property I, L.P. | Apparatus and methods for inducing electromagnetic waves on an uninsulated conductor |
US10530505B2 (en) | 2016-12-08 | 2020-01-07 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching electromagnetic waves along a transmission medium |
US10547348B2 (en) | 2016-12-07 | 2020-01-28 | At&T Intellectual Property I, L.P. | Method and apparatus for switching transmission mediums in a communication system |
US10560151B2 (en) | 2017-11-15 | 2020-02-11 | At&T Intellectual Property I, L.P. | Access point and methods for communicating with guided electromagnetic waves |
US10601494B2 (en) | 2016-12-08 | 2020-03-24 | At&T Intellectual Property I, L.P. | Dual-band communication device and method for use therewith |
US10602377B2 (en) | 2017-10-19 | 2020-03-24 | At&T Intellectual Property I, L.P. | Dual mode communications device with null steering and methods for use therewith |
US10616056B2 (en) | 2018-03-26 | 2020-04-07 | At&T Intellectual Property I, L.P. | Modulation and demodulation of signals conveyed by electromagnetic waves and methods thereof |
US10622722B2 (en) | 2018-08-13 | 2020-04-14 | At&T Intellecual Property I, L.P. | System and method for launching guided electromagnetic waves with impedance matching |
US10623033B1 (en) | 2018-11-29 | 2020-04-14 | At&T Intellectual Property I, L.P. | Methods and apparatus to reduce distortion between electromagnetic wave transmissions |
US10623056B1 (en) | 2018-12-03 | 2020-04-14 | At&T Intellectual Property I, L.P. | Guided wave splitter and methods for use therewith |
US10623057B1 (en) | 2018-12-03 | 2020-04-14 | At&T Intellectual Property I, L.P. | Guided wave directional coupler and methods for use therewith |
US10637149B2 (en) | 2016-12-06 | 2020-04-28 | At&T Intellectual Property I, L.P. | Injection molded dielectric antenna and methods for use therewith |
US10637535B1 (en) | 2018-12-10 | 2020-04-28 | At&T Intellectual Property I, L.P. | Methods and apparatus to receive electromagnetic wave transmissions |
US10644747B2 (en) | 2017-10-04 | 2020-05-05 | At&T Intellectual Property I, L.P. | Apparatus and methods for processing ultra-wideband electromagnetic waves |
US10644752B2 (en) | 2017-11-09 | 2020-05-05 | At&T Intellectual Property I, L.P. | Guided wave communication system with interference mitigation and methods for use therewith |
US10652054B2 (en) | 2014-11-20 | 2020-05-12 | At&T Intellectual Property I, L.P. | Methods and apparatus for inducing electromagnetic waves within pathways of a cable |
US10650940B2 (en) | 2015-05-15 | 2020-05-12 | At&T Intellectual Property I, L.P. | Transmission medium having a conductive material and methods for use therewith |
US10658726B2 (en) | 2016-12-06 | 2020-05-19 | At&T Intellectual Property I, L.P. | Methods and apparatus for adjusting a phase of electromagnetic waves |
US10665942B2 (en) | 2015-10-16 | 2020-05-26 | At&T Intellectual Property I, L.P. | Method and apparatus for adjusting wireless communications |
US10666323B1 (en) | 2018-12-13 | 2020-05-26 | At&T Intellectual Property I, L.P. | Methods and apparatus for monitoring conditions to switch between modes of transmission |
US10679767B2 (en) | 2015-05-15 | 2020-06-09 | At&T Intellectual Property I, L.P. | Transmission medium having a conductive material and methods for use therewith |
US10693667B2 (en) | 2018-10-12 | 2020-06-23 | At&T Intellectual Property I, L.P. | Methods and apparatus for exchanging communication signals via a cable of twisted pair wires |
US10694379B2 (en) | 2016-12-06 | 2020-06-23 | At&T Intellectual Property I, L.P. | Waveguide system with device-based authentication and methods for use therewith |
US10714803B2 (en) | 2015-05-14 | 2020-07-14 | At&T Intellectual Property I, L.P. | Transmission medium and methods for use therewith |
US10714831B2 (en) | 2017-10-19 | 2020-07-14 | At&T Intellectual Property I, L.P. | Dual mode communications device with remote radio head and methods for use therewith |
US10720962B2 (en) | 2017-07-05 | 2020-07-21 | At&T Intellectual Property I, L.P. | Method and apparatus for reducing radiation from an external surface of a waveguide structure |
US10727955B2 (en) | 2018-11-29 | 2020-07-28 | At&T Intellectual Property I, L.P. | Method and apparatus for power delivery to waveguide systems |
US10727599B2 (en) | 2016-12-06 | 2020-07-28 | At&T Intellectual Property I, L.P. | Launcher with slot antenna and methods for use therewith |
US10727577B2 (en) | 2018-03-29 | 2020-07-28 | At&T Intellectual Property I, L.P. | Exchange of wireless signals guided by a transmission medium and methods thereof |
US10727901B2 (en) | 2017-09-06 | 2020-07-28 | At&T Intellectual Property I, L.P. | Antenna structure with circularly polarized antenna beam |
US10727898B2 (en) | 2017-07-05 | 2020-07-28 | At&T Intellectual Property I, L.P. | Method and apparatus for reducing flow of currents on an outer surface of a structure |
US10742243B2 (en) | 2015-07-14 | 2020-08-11 | At&T Intellectual Property I, L.P. | Method and apparatus for coupling an antenna to a device |
US10755542B2 (en) | 2016-12-06 | 2020-08-25 | At&T Intellectual Property I, L.P. | Method and apparatus for surveillance via guided wave communication |
US10756805B2 (en) | 2015-06-03 | 2020-08-25 | At&T Intellectual Property I, L.P. | Client node device with frequency conversion and methods for use therewith |
US10764762B2 (en) | 2017-10-04 | 2020-09-01 | At&T Intellectual Property I, L.P. | Apparatus and methods for distributing a communication signal obtained from ultra-wideband electromagnetic waves |
US10763916B2 (en) | 2017-10-19 | 2020-09-01 | At&T Intellectual Property I, L.P. | Dual mode antenna systems and methods for use therewith |
US10770799B2 (en) | 2017-12-06 | 2020-09-08 | At&T Intellectual Property I, L.P. | Method and apparatus for communication using variable permittivity polyrod antenna |
US10778286B2 (en) | 2018-09-12 | 2020-09-15 | At&T Intellectual Property I, L.P. | Methods and apparatus for transmitting or receiving electromagnetic waves |
US10777873B2 (en) | 2016-12-08 | 2020-09-15 | At&T Intellectual Property I, L.P. | Method and apparatus for mounting network devices |
US10784670B2 (en) | 2015-07-23 | 2020-09-22 | At&T Intellectual Property I, L.P. | Antenna support for aligning an antenna |
US10785125B2 (en) | 2018-12-03 | 2020-09-22 | At&T Intellectual Property I, L.P. | Method and procedure for generating reputation scores for IoT devices based on distributed analysis |
US10790593B2 (en) | 2015-07-14 | 2020-09-29 | At&T Intellectual Property I, L.P. | Method and apparatus including an antenna comprising a lens and a body coupled to a feedline having a structure that reduces reflections of electromagnetic waves |
US10804962B2 (en) | 2018-07-09 | 2020-10-13 | At&T Intellectual Property I, L.P. | Method and apparatus for communications using electromagnetic waves |
US10804586B2 (en) | 2018-10-18 | 2020-10-13 | At&T Intellectual Property I, L.P. | System and method for launching scattering electromagnetic waves |
US10804959B1 (en) | 2019-12-04 | 2020-10-13 | At&T Intellectual Property I, L.P. | Transmission device with corona discharge mitigation and methods for use therewith |
US10812142B2 (en) | 2018-12-13 | 2020-10-20 | At&T Intellectual Property I, L.P. | Method and apparatus for mitigating thermal stress in a waveguide communication system |
US10812291B1 (en) | 2019-12-03 | 2020-10-20 | At&T Intellectual Property I, L.P. | Method and apparatus for communicating between a waveguide system and a base station device |
US10812139B2 (en) | 2018-11-29 | 2020-10-20 | At&T Intellectual Property I, L.P. | Method and apparatus for communication utilizing electromagnetic waves and a telecommunication line |
US10812123B1 (en) | 2019-12-05 | 2020-10-20 | At&T Intellectual Property I, L.P. | Magnetic coupler for launching and receiving electromagnetic waves and methods thereof |
US10812144B1 (en) | 2019-12-03 | 2020-10-20 | At&T Intellectual Property I, L.P. | Surface wave repeater and methods for use therewith |
US10811767B2 (en) | 2016-10-21 | 2020-10-20 | At&T Intellectual Property I, L.P. | System and dielectric antenna with convex dielectric radome |
US10812136B1 (en) | 2019-12-02 | 2020-10-20 | At&T Intellectual Property I, L.P. | Surface wave repeater with controllable isolator and methods for use therewith |
US10820329B2 (en) | 2017-12-04 | 2020-10-27 | At&T Intellectual Property I, L.P. | Guided wave communication system with interference mitigation and methods for use therewith |
US10819391B2 (en) | 2018-12-03 | 2020-10-27 | At&T Intellectual Property I, L.P. | Guided wave launcher with reflector and methods for use therewith |
US10819035B2 (en) | 2016-12-06 | 2020-10-27 | At&T Intellectual Property I, L.P. | Launcher with helical antenna and methods for use therewith |
US10826548B2 (en) | 2017-11-06 | 2020-11-03 | At&T Intellectual Property I, L.P. | Multi-input multi-output guided wave system and methods for use therewith |
US10826607B2 (en) | 2018-12-06 | 2020-11-03 | At&T Intellectual Property I, L.P. | Free-space, twisted light optical communication system |
US10826562B2 (en) | 2018-03-26 | 2020-11-03 | At&T Intellectual Property I, L.P. | Coaxial surface wave communication system and methods for use therewith |
US10833743B2 (en) | 2017-12-01 | 2020-11-10 | AT&T Intelletual Property I. L.P. | Methods and apparatus for generating and receiving electromagnetic waves |
US10833727B2 (en) | 2018-10-02 | 2020-11-10 | At&T Intellectual Property I, L.P. | Methods and apparatus for launching or receiving electromagnetic waves |
US10833729B2 (en) | 2018-03-26 | 2020-11-10 | At&T Intellectual Property I, L.P. | Surface wave communication system and methods for use therewith |
US10834607B2 (en) | 2016-12-08 | 2020-11-10 | At&T Intellectual Property I, L.P. | Method and apparatus for collecting data associated with wireless communications |
US10833730B1 (en) | 2019-12-03 | 2020-11-10 | At&T Intellectual Property I, L.P. | Method and apparatus for providing power to a waveguide system |
US10840602B2 (en) | 2017-09-06 | 2020-11-17 | At&T Intellectual Property I, L.P. | Multimode antenna system and methods for use therewith |
US10887891B2 (en) | 2017-11-09 | 2021-01-05 | At&T Intellectual Property I, L.P. | Guided wave communication system with resource allocation and methods for use therewith |
US10886972B2 (en) | 2018-10-10 | 2021-01-05 | At&T Intellectual Property I, L.P. | Methods and apparatus for selectively controlling energy consumption of a waveguide system |
US10886629B2 (en) | 2017-10-26 | 2021-01-05 | At&T Intellectual Property I, L.P. | Antenna system with planar antenna and methods for use therewith |
US10886589B1 (en) | 2019-12-02 | 2021-01-05 | At&T Intellectual Property I, L.P. | Guided wave coupling system for telephony cable messenger wire and methods for use therewith |
US10911099B2 (en) | 2018-05-16 | 2021-02-02 | At&T Intellectual Property I, L.P. | Method and apparatus for communications using electromagnetic waves and an insulator |
US10914904B2 (en) | 2018-11-29 | 2021-02-09 | At&T Intellectual Property I, L.P. | Method and apparatus for providing power to waveguide systems |
US10916969B2 (en) | 2016-12-08 | 2021-02-09 | At&T Intellectual Property I, L.P. | Method and apparatus for providing power using an inductive coupling |
US10924942B2 (en) | 2018-09-12 | 2021-02-16 | At&T Intellectual Property I, L.P. | Apparatus and methods for transmitting or receiving electromagnetic waves |
US10924158B2 (en) | 2017-04-11 | 2021-02-16 | At&T Intellectual Property I, L.P. | Machine assisted development of deployment site inventory |
US10931012B2 (en) | 2018-11-14 | 2021-02-23 | At&T Intellectual Property I, L.P. | Device with programmable reflector for transmitting or receiving electromagnetic waves |
US10930992B1 (en) | 2019-12-03 | 2021-02-23 | At&T Intellectual Property I, L.P. | Method and apparatus for communicating between waveguide systems |
US10938108B2 (en) | 2016-12-08 | 2021-03-02 | At&T Intellectual Property I, L.P. | Frequency selective multi-feed dielectric antenna system and methods for use therewith |
US10938104B2 (en) | 2018-11-16 | 2021-03-02 | At&T Intellectual Property I, L.P. | Method and apparatus for mitigating a change in an orientation of an antenna |
US10945138B2 (en) | 2017-10-19 | 2021-03-09 | At&T Intellectual Property I, L.P. | Dual mode communications device with remote device feedback and methods for use therewith |
US10951266B1 (en) | 2019-12-03 | 2021-03-16 | At&T Intellectual Property I, L.P. | Guided wave coupling system for telephony cable wrap wire and methods for use therewith |
US10951267B1 (en) | 2019-12-04 | 2021-03-16 | At&T Intellectual Property I, L.P. | Method and apparatus for adapting a waveguide to properties of a physical transmission medium |
US10951265B1 (en) | 2019-12-02 | 2021-03-16 | At&T Intellectual Property I, L.P. | Surface wave repeater with cancellation and methods for use therewith |
US10957977B2 (en) | 2018-11-14 | 2021-03-23 | At&T Intellectual Property I, L.P. | Device with virtual reflector for transmitting or receiving electromagnetic waves |
US10965344B2 (en) | 2018-11-29 | 2021-03-30 | At&T Intellectual Property 1, L.P. | Methods and apparatus for exchanging wireless signals utilizing electromagnetic waves having differing characteristics |
US10964995B2 (en) | 2017-09-05 | 2021-03-30 | At&T Intellectual Property I, L.P. | Dielectric coupling system with mode control and methods for use therewith |
US10977932B2 (en) | 2018-12-04 | 2021-04-13 | At&T Intellectual Property I, L.P. | Method and apparatus for electromagnetic wave communications associated with vehicular traffic |
US10978773B2 (en) | 2018-12-03 | 2021-04-13 | At&T Intellectual Property I, L.P. | Guided wave dielectric coupler having a dielectric cable with an exposed dielectric core position for enabling electromagnetic coupling between the cable and a transmission medium |
US10992343B1 (en) | 2019-12-04 | 2021-04-27 | At&T Intellectual Property I, L.P. | Guided electromagnetic wave communications via an underground cable |
US11018525B2 (en) | 2017-12-07 | 2021-05-25 | At&T Intellectual Property 1, L.P. | Methods and apparatus for increasing a transfer of energy in an inductive power supply |
US11018401B2 (en) | 2017-09-05 | 2021-05-25 | At&T Intellectual Property I, L.P. | Flared dielectric coupling system and methods for use therewith |
US11025460B2 (en) | 2014-11-20 | 2021-06-01 | At&T Intellectual Property I, L.P. | Methods and apparatus for accessing interstitial areas of a cable |
US11032819B2 (en) | 2016-09-15 | 2021-06-08 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having a control channel reference signal |
US11031667B1 (en) | 2019-12-05 | 2021-06-08 | At&T Intellectual Property I, L.P. | Method and apparatus having an adjustable structure positioned along a transmission medium for launching or receiving electromagnetic waves having a desired wavemode |
US11051240B2 (en) | 2017-11-15 | 2021-06-29 | At&T Intellectual Property I, L.P. | Access point and methods for communicating resource blocks with guided electromagnetic waves |
US11063334B2 (en) | 2019-12-05 | 2021-07-13 | At&T Intellectual Property I, L.P. | Method and apparatus having one or more adjustable structures for launching or receiving electromagnetic waves having a desired wavemode |
US11070250B2 (en) | 2019-12-03 | 2021-07-20 | At&T Intellectual Property I, L.P. | Method and apparatus for calibrating waveguide systems to manage propagation delays of electromagnetic waves |
US11070085B2 (en) | 2018-03-30 | 2021-07-20 | At&T Intellectual Property I, L.P. | Methods and apparatus for regulating a magnetic flux in an inductive power supply |
US11082091B2 (en) | 2018-11-29 | 2021-08-03 | At&T Intellectual Property I, L.P. | Method and apparatus for communication utilizing electromagnetic waves and a power line |
US11108126B2 (en) | 2017-09-05 | 2021-08-31 | At&T Intellectual Property I, L.P. | Multi-arm dielectric coupling system and methods for use therewith |
US11146916B2 (en) | 2016-12-08 | 2021-10-12 | At&T Intellectual Property I, L.P. | Method and apparatus for proximity sensing on a communication device |
US11171764B1 (en) | 2020-08-21 | 2021-11-09 | At&T Intellectual Property I, L.P. | Method and apparatus for automatically retransmitting corrupted data |
US11171960B2 (en) | 2018-12-03 | 2021-11-09 | At&T Intellectual Property I, L.P. | Network security management based on collection and cataloging of network-accessible device information |
US11201753B1 (en) | 2020-06-12 | 2021-12-14 | At&T Intellectual Property I, L.P. | Method and apparatus for managing power being provided to a waveguide system |
US11205857B2 (en) | 2018-12-04 | 2021-12-21 | At&T Intellectual Property I, L.P. | System and method for launching guided electromagnetic waves with channel feedback |
US11223098B2 (en) | 2019-12-04 | 2022-01-11 | At&T Intellectual Property I, L.P. | Waveguide system comprising a scattering device for generating a second non-fundamental wave mode from a first non-fundamental wave mode |
US11277159B2 (en) | 2019-12-03 | 2022-03-15 | At&T Intellectual Property I, L.P. | Method and apparatus for managing propagation delays of electromagnetic waves |
US11283177B2 (en) | 2019-12-02 | 2022-03-22 | At&T Intellectual Property I, L.P. | Surface wave transmission device with RF housing and methods for use therewith |
US11283182B2 (en) | 2018-12-03 | 2022-03-22 | At&T Intellectual Property I, L.P. | Guided wave launcher with lens and methods for use therewith |
US11356143B2 (en) | 2019-12-10 | 2022-06-07 | At&T Intellectual Property I, L.P. | Waveguide system with power stabilization and methods for use therewith |
US11356208B2 (en) | 2019-12-04 | 2022-06-07 | At&T Intellectual Property I, L.P. | Transmission device with hybrid ARQ and methods for use therewith |
US11362438B2 (en) | 2018-12-04 | 2022-06-14 | At&T Intellectual Property I, L.P. | Configurable guided wave launcher and methods for use therewith |
US11381007B2 (en) | 2017-10-26 | 2022-07-05 | At&T Intellectual Property I, L.P. | Antenna system with planar antenna and directors and methods for use therewith |
US11387560B2 (en) | 2019-12-03 | 2022-07-12 | At&T Intellectual Property I, L.P. | Impedance matched launcher with cylindrical coupling device and methods for use therewith |
US11431555B2 (en) | 2017-10-04 | 2022-08-30 | At&T Intellectual Property I, L.P. | Apparatus and methods for mitigating a fault that adversely affects ultra-wideband transmissions |
US11456771B1 (en) | 2021-03-17 | 2022-09-27 | At&T Intellectual Property I, L.P. | Apparatuses and methods for facilitating a conveyance of status in communication systems and networks |
US11502724B2 (en) | 2019-12-03 | 2022-11-15 | At&T Intellectual Property I, L.P. | Method and apparatus for transitioning between electromagnetic wave modes |
US11533079B2 (en) | 2021-03-17 | 2022-12-20 | At&T Intellectual Property I, L.P. | Methods and apparatuses for facilitating guided wave communications with an enhanced flexibility in parameters |
US11546258B2 (en) | 2018-03-30 | 2023-01-03 | At&T Intellectual Property I, L.P. | Method and apparatus for switching of data channels provided in electromagnetic waves |
US11569868B2 (en) | 2021-03-17 | 2023-01-31 | At&T Intellectual Property I, L.P. | Apparatuses and methods for enhancing a reliability of power available to communicaton devices via an insulator |
US11581917B2 (en) | 2019-12-05 | 2023-02-14 | At&T Intellectual Property I, L.P. | Method and apparatus adapted to a characteristic of an outer surface of a transmission medium for launching or receiving electromagnetic waves |
US11664883B2 (en) | 2021-04-06 | 2023-05-30 | At&T Intellectual Property I, L.P. | Time domain duplexing repeater using envelope detection |
US11671926B2 (en) | 2021-03-17 | 2023-06-06 | At&T Intellectual Property I, L.P. | Methods and apparatuses for facilitating signaling and power in a communication system |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2895127A (en) * | 1954-07-20 | 1959-07-14 | Rca Corp | Directive diplex antenna |
US3100894A (en) * | 1960-03-09 | 1963-08-13 | Bendix Corp | Dual frequency feed horn |
US3325817A (en) * | 1964-06-01 | 1967-06-13 | Hughes Aircraft Co | Dual frequency horn antenna |
-
1965
- 1965-11-26 US US509694A patent/US3389394A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2895127A (en) * | 1954-07-20 | 1959-07-14 | Rca Corp | Directive diplex antenna |
US3100894A (en) * | 1960-03-09 | 1963-08-13 | Bendix Corp | Dual frequency feed horn |
US3325817A (en) * | 1964-06-01 | 1967-06-13 | Hughes Aircraft Co | Dual frequency horn antenna |
Cited By (457)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3482248A (en) * | 1967-07-31 | 1969-12-02 | Us Army | Multifrequency common aperture manifold antenna |
US3550139A (en) * | 1968-07-05 | 1970-12-22 | North American Rockwell | Hemispherical dielectric lens type antenna employing a uniform dielectric |
US3573833A (en) * | 1969-07-22 | 1971-04-06 | Hughes Aircraft Co | Broadband dielectric lens antenna fed by multiconductor quasi-tem lines |
JPS5527722B2 (en) * | 1972-02-05 | 1980-07-23 | ||
JPS4882751A (en) * | 1972-02-05 | 1973-11-05 | ||
JPS5619762B2 (en) * | 1975-11-26 | 1981-05-09 | ||
JPS52138853A (en) * | 1975-11-26 | 1977-11-19 | Nippon Telegr & Teleph Corp <Ntt> | Beam mode exciter |
US4307404A (en) * | 1978-03-20 | 1981-12-22 | Harris Corporation | Dichroic scanner for conscan antenna feed systems |
US4199764A (en) * | 1979-01-31 | 1980-04-22 | Nasa | Dual band combiner for horn antenna |
US4290068A (en) * | 1979-12-14 | 1981-09-15 | Bogner Richard D | Microwave television system |
JPS5628503A (en) * | 1979-12-31 | 1981-03-20 | Nec Corp | Lens antenna |
JPS5820164B2 (en) * | 1979-12-31 | 1983-04-21 | 日本電気株式会社 | lens antenna |
FR2548466A1 (en) * | 1983-07-01 | 1985-01-04 | Radiotechnique Compelec | EMISSION-RECEPTION DEVICE FOR PRESENCE DETECTION RADAR, AND METHOD FOR REALIZING SAME |
EP0131328A1 (en) * | 1983-07-01 | 1985-01-16 | Rtc-Compelec | Transmit-receive device for a presence-detecting radar, and method of making it |
US4658267A (en) * | 1984-10-31 | 1987-04-14 | Raytheon Company | Ridged waveguide antenna with plural feed inputs |
US5406298A (en) * | 1985-04-01 | 1995-04-11 | The United States Of America As Represented By The Secretary Of The Navy | Small wideband passive/active antenna |
US5003321A (en) * | 1985-09-09 | 1991-03-26 | Sts Enterprises, Inc. | Dual frequency feed |
EP0215535A1 (en) * | 1985-09-09 | 1987-03-25 | Satellite Technology Services, Inc. | Dual frequency feed |
US4785306A (en) * | 1986-01-17 | 1988-11-15 | General Instrument Corporation | Dual frequency feed satellite antenna horn |
US4866454A (en) * | 1987-03-04 | 1989-09-12 | Droessler Justin G | Multi-spectral imaging system |
US5166698A (en) * | 1988-01-11 | 1992-11-24 | Innova, Inc. | Electromagnetic antenna collimator |
WO1990013927A1 (en) * | 1989-05-03 | 1990-11-15 | The University Of Lancaster | Antenna system |
US5184141A (en) * | 1990-04-05 | 1993-02-02 | Vought Aircraft Company | Structurally-embedded electronics assembly |
WO1991015879A1 (en) * | 1990-04-06 | 1991-10-17 | Microbeam Corporation | Electromagnetic antenna collimator |
US5248987A (en) * | 1991-12-31 | 1993-09-28 | Massachusetts Institute Of Technology | Widebeam antenna |
AU670067B2 (en) * | 1992-02-06 | 1996-07-04 | California Amplifier | Dual mode/dual band feed structures |
WO1993016502A1 (en) * | 1992-02-06 | 1993-08-19 | California Amplifier | Dual mode/dual band feed structures |
US5216432A (en) * | 1992-02-06 | 1993-06-01 | California Amplifier | Dual mode/dual band feed structure |
US5640168A (en) * | 1995-08-11 | 1997-06-17 | Zircon Corporation | Ultra wide-band radar antenna for concrete penetration |
US6480164B2 (en) | 2000-08-03 | 2002-11-12 | Ronald S. Posner | Corrective dielectric lens feed system |
US6661389B2 (en) * | 2000-11-20 | 2003-12-09 | Vega Grieshaber Kg | Horn antenna for a radar device |
DE10057441B4 (en) * | 2000-11-20 | 2014-02-13 | Vega Grieshaber Kg | Horn antenna for a radar device |
WO2006127610A2 (en) * | 2005-05-23 | 2006-11-30 | General Dynamics Satcom Technologies, Inc. | Tri-band circularly-polarized antenna for a satellite communications ground terminal |
WO2006127610A3 (en) * | 2005-05-23 | 2007-03-15 | Gen Dynamics Satcom Technologi | Tri-band circularly-polarized antenna for a satellite communications ground terminal |
US7786946B2 (en) * | 2006-12-22 | 2010-08-31 | Arizona Board Of Regents For And On Behalf Of Arizona State University | Hollow dielectric pipe polyrod antenna |
US20100214186A1 (en) * | 2007-05-31 | 2010-08-26 | Debabani Choudhury | Cmos ic and high-gain antenna integration for point-to-point wireless communication |
US7737894B2 (en) * | 2007-05-31 | 2010-06-15 | Intel Corporation | CMOS IC and high-gain antenna integration for point-to-point wireless communication |
US7852278B2 (en) | 2007-05-31 | 2010-12-14 | Intel Corporation | CMOS IC and high-gain antenna integration for point-to-point wireless communication |
US20090262038A1 (en) * | 2008-04-21 | 2009-10-22 | Krohne Messtechnik Gmbh & Co. Kg | Dielectric antenna |
DE102008020036B4 (en) * | 2008-04-21 | 2010-04-01 | Krohne Meßtechnik GmbH & Co KG | Dielectric antenna |
US8242965B2 (en) * | 2008-04-21 | 2012-08-14 | Krohne Messtechnik Gmbh & Co. Kg | Dielectric antenna |
DE102008020036A1 (en) * | 2008-04-21 | 2009-10-29 | Krohne Meßtechnik GmbH & Co KG | Dielectric antenna |
US20110050527A1 (en) * | 2009-09-01 | 2011-03-03 | Anderson Joseph M | Broadband/Multi-Band Horn Antenna With Compact Integrated Feed |
US8248321B2 (en) | 2009-09-01 | 2012-08-21 | Raytheon Company | Broadband/multi-band horn antenna with compact integrated feed |
US9119127B1 (en) | 2012-12-05 | 2015-08-25 | At&T Intellectual Property I, Lp | Backhaul link for distributed antenna system |
US9699785B2 (en) | 2012-12-05 | 2017-07-04 | At&T Intellectual Property I, L.P. | Backhaul link for distributed antenna system |
US10827492B2 (en) | 2012-12-05 | 2020-11-03 | At&T Intellectual Property I, L.P. | Backhaul link for distributed antenna system |
US10009065B2 (en) | 2012-12-05 | 2018-06-26 | At&T Intellectual Property I, L.P. | Backhaul link for distributed antenna system |
US10194437B2 (en) | 2012-12-05 | 2019-01-29 | At&T Intellectual Property I, L.P. | Backhaul link for distributed antenna system |
US9788326B2 (en) | 2012-12-05 | 2017-10-10 | At&T Intellectual Property I, L.P. | Backhaul link for distributed antenna system |
US9525524B2 (en) | 2013-05-31 | 2016-12-20 | At&T Intellectual Property I, L.P. | Remote distributed antenna system |
US10051630B2 (en) | 2013-05-31 | 2018-08-14 | At&T Intellectual Property I, L.P. | Remote distributed antenna system |
US9999038B2 (en) | 2013-05-31 | 2018-06-12 | At&T Intellectual Property I, L.P. | Remote distributed antenna system |
US9930668B2 (en) | 2013-05-31 | 2018-03-27 | At&T Intellectual Property I, L.P. | Remote distributed antenna system |
US10091787B2 (en) | 2013-05-31 | 2018-10-02 | At&T Intellectual Property I, L.P. | Remote distributed antenna system |
US9154966B2 (en) | 2013-11-06 | 2015-10-06 | At&T Intellectual Property I, Lp | Surface-wave communications and methods thereof |
US9467870B2 (en) | 2013-11-06 | 2016-10-11 | At&T Intellectual Property I, L.P. | Surface-wave communications and methods thereof |
US9661505B2 (en) | 2013-11-06 | 2017-05-23 | At&T Intellectual Property I, L.P. | Surface-wave communications and methods thereof |
US9674711B2 (en) | 2013-11-06 | 2017-06-06 | At&T Intellectual Property I, L.P. | Surface-wave communications and methods thereof |
US9876584B2 (en) | 2013-12-10 | 2018-01-23 | At&T Intellectual Property I, L.P. | Quasi-optical coupler |
US9479266B2 (en) | 2013-12-10 | 2016-10-25 | At&T Intellectual Property I, L.P. | Quasi-optical coupler |
US9209902B2 (en) | 2013-12-10 | 2015-12-08 | At&T Intellectual Property I, L.P. | Quasi-optical coupler |
US9794003B2 (en) | 2013-12-10 | 2017-10-17 | At&T Intellectual Property I, L.P. | Quasi-optical coupler |
US10784556B2 (en) | 2014-08-26 | 2020-09-22 | At&T Intellectual Property I, L.P. | Apparatus and a method for coupling an electromagnetic wave to a transmission medium, where portions of the electromagnetic wave are inside the coupler and outside the coupler |
US9692101B2 (en) | 2014-08-26 | 2017-06-27 | At&T Intellectual Property I, L.P. | Guided wave couplers for coupling electromagnetic waves between a waveguide surface and a surface of a wire |
US10096881B2 (en) | 2014-08-26 | 2018-10-09 | At&T Intellectual Property I, L.P. | Guided wave couplers for coupling electromagnetic waves to an outer surface of a transmission medium |
US9755697B2 (en) | 2014-09-15 | 2017-09-05 | At&T Intellectual Property I, L.P. | Method and apparatus for sensing a condition in a transmission medium of electromagnetic waves |
US9768833B2 (en) | 2014-09-15 | 2017-09-19 | At&T Intellectual Property I, L.P. | Method and apparatus for sensing a condition in a transmission medium of electromagnetic waves |
US10063280B2 (en) | 2014-09-17 | 2018-08-28 | At&T Intellectual Property I, L.P. | Monitoring and mitigating conditions in a communication network |
US9906269B2 (en) | 2014-09-17 | 2018-02-27 | At&T Intellectual Property I, L.P. | Monitoring and mitigating conditions in a communication network |
US11012741B2 (en) | 2014-09-29 | 2021-05-18 | At&T Intellectual Property I, L.P. | Method and apparatus for distributing content in a communication network |
US9628854B2 (en) | 2014-09-29 | 2017-04-18 | At&T Intellectual Property I, L.P. | Method and apparatus for distributing content in a communication network |
US9998932B2 (en) | 2014-10-02 | 2018-06-12 | At&T Intellectual Property I, L.P. | Method and apparatus that provides fault tolerance in a communication network |
US9973416B2 (en) | 2014-10-02 | 2018-05-15 | At&T Intellectual Property I, L.P. | Method and apparatus that provides fault tolerance in a communication network |
US9615269B2 (en) | 2014-10-02 | 2017-04-04 | At&T Intellectual Property I, L.P. | Method and apparatus that provides fault tolerance in a communication network |
US9685992B2 (en) | 2014-10-03 | 2017-06-20 | At&T Intellectual Property I, L.P. | Circuit panel network and methods thereof |
US9866276B2 (en) | 2014-10-10 | 2018-01-09 | At&T Intellectual Property I, L.P. | Method and apparatus for arranging communication sessions in a communication system |
US10659105B2 (en) | 2014-10-10 | 2020-05-19 | At&T Intellectual Property I, L.P. | Method and apparatus for arranging communication sessions in a communication system |
US9503189B2 (en) | 2014-10-10 | 2016-11-22 | At&T Intellectual Property I, L.P. | Method and apparatus for arranging communication sessions in a communication system |
US10644831B2 (en) | 2014-10-14 | 2020-05-05 | At&T Intellectual Property I, L.P. | Method and apparatus for adjusting a mode of communication in a communication network |
US9847850B2 (en) | 2014-10-14 | 2017-12-19 | At&T Intellectual Property I, L.P. | Method and apparatus for adjusting a mode of communication in a communication network |
US9973299B2 (en) | 2014-10-14 | 2018-05-15 | At&T Intellectual Property I, L.P. | Method and apparatus for adjusting a mode of communication in a communication network |
US9762289B2 (en) | 2014-10-14 | 2017-09-12 | At&T Intellectual Property I, L.P. | Method and apparatus for transmitting or receiving signals in a transportation system |
US9571209B2 (en) | 2014-10-21 | 2017-02-14 | At&T Intellectual Property I, L.P. | Transmission device with impairment compensation and methods for use therewith |
US10804964B2 (en) | 2014-10-21 | 2020-10-13 | At&T Intellectual Property I, L.P. | Method and apparatus for transmitting electromagnetic waves |
US9312919B1 (en) | 2014-10-21 | 2016-04-12 | At&T Intellectual Property I, Lp | Transmission device with impairment compensation and methods for use therewith |
US9596001B2 (en) | 2014-10-21 | 2017-03-14 | At&T Intellectual Property I, L.P. | Apparatus for providing communication services and methods thereof |
US9577306B2 (en) | 2014-10-21 | 2017-02-21 | At&T Intellectual Property I, L.P. | Guided-wave transmission device and methods for use therewith |
US11063633B2 (en) | 2014-10-21 | 2021-07-13 | At&T Intellectual Property I, L.P. | Guided wave transmission device with diversity and methods for use therewith |
US9871558B2 (en) | 2014-10-21 | 2018-01-16 | At&T Intellectual Property I, L.P. | Guided-wave transmission device and methods for use therewith |
US9876587B2 (en) | 2014-10-21 | 2018-01-23 | At&T Intellectual Property I, L.P. | Transmission device with impairment compensation and methods for use therewith |
US9577307B2 (en) | 2014-10-21 | 2017-02-21 | At&T Intellectual Property I, L.P. | Guided-wave transmission device and methods for use therewith |
US10797756B2 (en) | 2014-10-21 | 2020-10-06 | At&T Intellectual Property I, L.P. | Apparatus for providing communication services and methods thereof |
US9705610B2 (en) | 2014-10-21 | 2017-07-11 | At&T Intellectual Property I, L.P. | Transmission device with impairment compensation and methods for use therewith |
US9948355B2 (en) | 2014-10-21 | 2018-04-17 | At&T Intellectual Property I, L.P. | Apparatus for providing communication services and methods thereof |
US9653770B2 (en) | 2014-10-21 | 2017-05-16 | At&T Intellectual Property I, L.P. | Guided wave coupler, coupling module and methods for use therewith |
US10666322B2 (en) | 2014-10-21 | 2020-05-26 | At&T Intellectual Property I, L.P. | Apparatus for providing communication services and methods thereof |
US9912033B2 (en) | 2014-10-21 | 2018-03-06 | At&T Intellectual Property I, Lp | Guided wave coupler, coupling module and methods for use therewith |
US9769020B2 (en) | 2014-10-21 | 2017-09-19 | At&T Intellectual Property I, L.P. | Method and apparatus for responding to events affecting communications in a communication network |
US9564947B2 (en) | 2014-10-21 | 2017-02-07 | At&T Intellectual Property I, L.P. | Guided-wave transmission device with diversity and methods for use therewith |
US9780834B2 (en) | 2014-10-21 | 2017-10-03 | At&T Intellectual Property I, L.P. | Method and apparatus for transmitting electromagnetic waves |
US9627768B2 (en) | 2014-10-21 | 2017-04-18 | At&T Intellectual Property I, L.P. | Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith |
US9520945B2 (en) | 2014-10-21 | 2016-12-13 | At&T Intellectual Property I, L.P. | Apparatus for providing communication services and methods thereof |
US9525210B2 (en) | 2014-10-21 | 2016-12-20 | At&T Intellectual Property I, L.P. | Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith |
US9960808B2 (en) | 2014-10-21 | 2018-05-01 | At&T Intellectual Property I, L.P. | Guided-wave transmission device and methods for use therewith |
US9954286B2 (en) | 2014-10-21 | 2018-04-24 | At&T Intellectual Property I, L.P. | Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith |
US9749083B2 (en) | 2014-11-20 | 2017-08-29 | At&T Intellectual Property I, L.P. | Transmission device with mode division multiplexing and methods for use therewith |
US9800327B2 (en) | 2014-11-20 | 2017-10-24 | At&T Intellectual Property I, L.P. | Apparatus for controlling operations of a communication device and methods thereof |
US9954287B2 (en) | 2014-11-20 | 2018-04-24 | At&T Intellectual Property I, L.P. | Apparatus for converting wireless signals and electromagnetic waves and methods thereof |
US9531427B2 (en) | 2014-11-20 | 2016-12-27 | At&T Intellectual Property I, L.P. | Transmission device with mode division multiplexing and methods for use therewith |
US9680670B2 (en) | 2014-11-20 | 2017-06-13 | At&T Intellectual Property I, L.P. | Transmission device with channel equalization and control and methods for use therewith |
US9544006B2 (en) | 2014-11-20 | 2017-01-10 | At&T Intellectual Property I, L.P. | Transmission device with mode division multiplexing and methods for use therewith |
US10616047B2 (en) | 2014-11-20 | 2020-04-07 | At&T Intellectual Property I, L.P. | System for generating topology information and methods thereof |
US11025460B2 (en) | 2014-11-20 | 2021-06-01 | At&T Intellectual Property I, L.P. | Methods and apparatus for accessing interstitial areas of a cable |
US10651564B2 (en) | 2014-11-20 | 2020-05-12 | At&T Intellectual Property I, L.P. | Apparatus for converting wireless signals and electromagnetic waves and methods thereof |
US10652054B2 (en) | 2014-11-20 | 2020-05-12 | At&T Intellectual Property I, L.P. | Methods and apparatus for inducing electromagnetic waves within pathways of a cable |
US10243784B2 (en) | 2014-11-20 | 2019-03-26 | At&T Intellectual Property I, L.P. | System for generating topology information and methods thereof |
US9742521B2 (en) | 2014-11-20 | 2017-08-22 | At&T Intellectual Property I, L.P. | Transmission device with mode division multiplexing and methods for use therewith |
US9654173B2 (en) | 2014-11-20 | 2017-05-16 | At&T Intellectual Property I, L.P. | Apparatus for powering a communication device and methods thereof |
US9712350B2 (en) | 2014-11-20 | 2017-07-18 | At&T Intellectual Property I, L.P. | Transmission device with channel equalization and control and methods for use therewith |
US10009067B2 (en) | 2014-12-04 | 2018-06-26 | At&T Intellectual Property I, L.P. | Method and apparatus for configuring a communication interface |
US10965340B2 (en) | 2014-12-04 | 2021-03-30 | At&T Intellectual Property I, L.P. | Transmission medium and communication interfaces and methods for use therewith |
US9742462B2 (en) | 2014-12-04 | 2017-08-22 | At&T Intellectual Property I, L.P. | Transmission medium and communication interfaces and methods for use therewith |
US10917136B2 (en) | 2014-12-04 | 2021-02-09 | At&T Intellectual Property I, L.P. | Method and apparatus for configuring a communication interface |
US10144036B2 (en) | 2015-01-30 | 2018-12-04 | At&T Intellectual Property I, L.P. | Method and apparatus for mitigating interference affecting a propagation of electromagnetic waves guided by a transmission medium |
US10812189B2 (en) | 2015-02-20 | 2020-10-20 | At&T Intellectual Property I, L.P. | Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith |
US9876571B2 (en) | 2015-02-20 | 2018-01-23 | At&T Intellectual Property I, Lp | Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith |
US9876570B2 (en) | 2015-02-20 | 2018-01-23 | At&T Intellectual Property I, Lp | Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith |
US9749013B2 (en) | 2015-03-17 | 2017-08-29 | At&T Intellectual Property I, L.P. | Method and apparatus for reducing attenuation of electromagnetic waves guided by a transmission medium |
US9793955B2 (en) | 2015-04-24 | 2017-10-17 | At&T Intellectual Property I, Lp | Passive electrical coupling device and methods for use therewith |
US10224981B2 (en) | 2015-04-24 | 2019-03-05 | At&T Intellectual Property I, Lp | Passive electrical coupling device and methods for use therewith |
US9705561B2 (en) | 2015-04-24 | 2017-07-11 | At&T Intellectual Property I, L.P. | Directional coupling device and methods for use therewith |
US10804968B2 (en) | 2015-04-24 | 2020-10-13 | At&T Intellectual Property I, L.P. | Passive electrical coupling device and methods for use therewith |
US9831912B2 (en) | 2015-04-24 | 2017-11-28 | At&T Intellectual Property I, Lp | Directional coupling device and methods for use therewith |
US10958307B2 (en) | 2015-04-24 | 2021-03-23 | At&T Intellectual Property I, L.P. | Directional coupling device and methods for use therewith |
US9793954B2 (en) | 2015-04-28 | 2017-10-17 | At&T Intellectual Property I, L.P. | Magnetic coupling device and methods for use therewith |
US9948354B2 (en) | 2015-04-28 | 2018-04-17 | At&T Intellectual Property I, L.P. | Magnetic coupling device with reflective plate and methods for use therewith |
US10630343B2 (en) | 2015-04-28 | 2020-04-21 | At&T Intellectual Property I, L.P. | Magnetic coupling device and methods for use therewith |
US9490869B1 (en) | 2015-05-14 | 2016-11-08 | At&T Intellectual Property I, L.P. | Transmission medium having multiple cores and methods for use therewith |
US9748626B2 (en) | 2015-05-14 | 2017-08-29 | At&T Intellectual Property I, L.P. | Plurality of cables having different cross-sectional shapes which are bundled together to form a transmission medium |
US11031668B2 (en) | 2015-05-14 | 2021-06-08 | At&T Intellectual Property I, L.P. | Transmission medium comprising a non-circular dielectric core adaptable for mating with a second dielectric core splicing device |
US9871282B2 (en) | 2015-05-14 | 2018-01-16 | At&T Intellectual Property I, L.P. | At least one transmission medium having a dielectric surface that is covered at least in part by a second dielectric |
US10714803B2 (en) | 2015-05-14 | 2020-07-14 | At&T Intellectual Property I, L.P. | Transmission medium and methods for use therewith |
US9887447B2 (en) | 2015-05-14 | 2018-02-06 | At&T Intellectual Property I, L.P. | Transmission medium having multiple cores and methods for use therewith |
US10679767B2 (en) | 2015-05-15 | 2020-06-09 | At&T Intellectual Property I, L.P. | Transmission medium having a conductive material and methods for use therewith |
US10650940B2 (en) | 2015-05-15 | 2020-05-12 | At&T Intellectual Property I, L.P. | Transmission medium having a conductive material and methods for use therewith |
US9917341B2 (en) | 2015-05-27 | 2018-03-13 | At&T Intellectual Property I, L.P. | Apparatus and method for launching electromagnetic waves and for modifying radial dimensions of the propagating electromagnetic waves |
US11145948B2 (en) | 2015-05-27 | 2021-10-12 | At&T Intellectual Property I, L.P. | Apparatus and method for launching electromagnetic waves onto a cable by using a tapered insulation layer with a slit |
US10103801B2 (en) | 2015-06-03 | 2018-10-16 | At&T Intellectual Property I, L.P. | Host node device and methods for use therewith |
US9967002B2 (en) | 2015-06-03 | 2018-05-08 | At&T Intellectual I, Lp | Network termination and methods for use therewith |
US10154493B2 (en) | 2015-06-03 | 2018-12-11 | At&T Intellectual Property I, L.P. | Network termination and methods for use therewith |
US10812174B2 (en) | 2015-06-03 | 2020-10-20 | At&T Intellectual Property I, L.P. | Client node device and methods for use therewith |
US9912381B2 (en) | 2015-06-03 | 2018-03-06 | At&T Intellectual Property I, Lp | Network termination and methods for use therewith |
US10050697B2 (en) | 2015-06-03 | 2018-08-14 | At&T Intellectual Property I, L.P. | Host node device and methods for use therewith |
US10601469B2 (en) | 2015-06-03 | 2020-03-24 | At&T Intellectual Property I, L.P. | Network termination and methods for use therewith |
US10396887B2 (en) | 2015-06-03 | 2019-08-27 | At&T Intellectual Property I, L.P. | Client node device and methods for use therewith |
US10348391B2 (en) | 2015-06-03 | 2019-07-09 | At&T Intellectual Property I, L.P. | Client node device with frequency conversion and methods for use therewith |
US9935703B2 (en) | 2015-06-03 | 2018-04-03 | At&T Intellectual Property I, L.P. | Host node device and methods for use therewith |
US10756805B2 (en) | 2015-06-03 | 2020-08-25 | At&T Intellectual Property I, L.P. | Client node device with frequency conversion and methods for use therewith |
US10797781B2 (en) | 2015-06-03 | 2020-10-06 | At&T Intellectual Property I, L.P. | Client node device and methods for use therewith |
US9866309B2 (en) | 2015-06-03 | 2018-01-09 | At&T Intellectual Property I, Lp | Host node device and methods for use therewith |
US9912382B2 (en) | 2015-06-03 | 2018-03-06 | At&T Intellectual Property I, Lp | Network termination and methods for use therewith |
US10784554B2 (en) | 2015-06-09 | 2020-09-22 | At&T Intellectual Property I, L.P. | Transmission medium and method of communication comprising a cable with a core, a cladding, and at least one metallic conductive layers |
US9913139B2 (en) | 2015-06-09 | 2018-03-06 | At&T Intellectual Property I, L.P. | Signal fingerprinting for authentication of communicating devices |
US9997819B2 (en) | 2015-06-09 | 2018-06-12 | At&T Intellectual Property I, L.P. | Transmission medium and method for facilitating propagation of electromagnetic waves via a core |
US10985436B2 (en) | 2015-06-09 | 2021-04-20 | At&T Intellectual Property I, L.P. | Apparatus and method utilizing a transmission medium with hollow waveguide cores |
US10027398B2 (en) | 2015-06-11 | 2018-07-17 | At&T Intellectual Property I, Lp | Repeater and methods for use therewith |
US10142010B2 (en) | 2015-06-11 | 2018-11-27 | At&T Intellectual Property I, L.P. | Repeater and methods for use therewith |
US10686516B2 (en) | 2015-06-11 | 2020-06-16 | At&T Intellectual Property I, L.P. | Repeater and methods for use therewith |
US10659212B2 (en) | 2015-06-11 | 2020-05-19 | At&T Intellectual Property I, L.P. | Repeater and methods for use therewith |
US9608692B2 (en) | 2015-06-11 | 2017-03-28 | At&T Intellectual Property I, L.P. | Repeater and methods for use therewith |
US10142086B2 (en) | 2015-06-11 | 2018-11-27 | At&T Intellectual Property I, L.P. | Repeater and methods for use therewith |
US9820146B2 (en) | 2015-06-12 | 2017-11-14 | At&T Intellectual Property I, L.P. | Method and apparatus for authentication and identity management of communicating devices |
US9667317B2 (en) | 2015-06-15 | 2017-05-30 | At&T Intellectual Property I, L.P. | Method and apparatus for providing security using network traffic adjustments |
US9509415B1 (en) | 2015-06-25 | 2016-11-29 | At&T Intellectual Property I, L.P. | Methods and apparatus for inducing a fundamental wave mode on a transmission medium |
US10770800B2 (en) | 2015-06-25 | 2020-09-08 | At&T Intellectual Property I, L.P. | Waveguide systems and methods for inducing a non-fundamental wave mode on a transmission medium |
US9882657B2 (en) | 2015-06-25 | 2018-01-30 | At&T Intellectual Property I, L.P. | Methods and apparatus for inducing a fundamental wave mode on a transmission medium |
US9640850B2 (en) | 2015-06-25 | 2017-05-02 | At&T Intellectual Property I, L.P. | Methods and apparatus for inducing a non-fundamental wave mode on a transmission medium |
US10090601B2 (en) | 2015-06-25 | 2018-10-02 | At&T Intellectual Property I, L.P. | Waveguide system and methods for inducing a non-fundamental wave mode on a transmission medium |
US9787412B2 (en) | 2015-06-25 | 2017-10-10 | At&T Intellectual Property I, L.P. | Methods and apparatus for inducing a fundamental wave mode on a transmission medium |
US10680309B2 (en) | 2015-06-25 | 2020-06-09 | At&T Intellectual Property I, L.P. | Methods and apparatus for inducing a non-fundamental wave mode on a transmission medium |
US9865911B2 (en) | 2015-06-25 | 2018-01-09 | At&T Intellectual Property I, L.P. | Waveguide system for slot radiating first electromagnetic waves that are combined into a non-fundamental wave mode second electromagnetic wave on a transmission medium |
US10069185B2 (en) | 2015-06-25 | 2018-09-04 | At&T Intellectual Property I, L.P. | Methods and apparatus for inducing a non-fundamental wave mode on a transmission medium |
US10129057B2 (en) | 2015-07-14 | 2018-11-13 | At&T Intellectual Property I, L.P. | Apparatus and methods for inducing electromagnetic waves on a cable |
US10148016B2 (en) | 2015-07-14 | 2018-12-04 | At&T Intellectual Property I, L.P. | Apparatus and methods for communicating utilizing an antenna array |
US10686496B2 (en) | 2015-07-14 | 2020-06-16 | At&T Intellecutal Property I, L.P. | Method and apparatus for coupling an antenna to a device |
US10804585B2 (en) | 2015-07-14 | 2020-10-13 | At&T Intellectual Property I, L.P. | Method and apparatus for launching a wave mode that mitigates interference |
US11025300B2 (en) | 2015-07-14 | 2021-06-01 | At&T Intellectual Property I, L.P. | Transmission medium and methods for use therewith |
US11177981B2 (en) | 2015-07-14 | 2021-11-16 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating non-interfering electromagnetic waves on an uninsulated conductor |
US10341142B2 (en) | 2015-07-14 | 2019-07-02 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating non-interfering electromagnetic waves on an uninsulated conductor |
US10742243B2 (en) | 2015-07-14 | 2020-08-11 | At&T Intellectual Property I, L.P. | Method and apparatus for coupling an antenna to a device |
US11189930B2 (en) | 2015-07-14 | 2021-11-30 | At&T Intellectual Property I, L.P. | Apparatus and methods for sending or receiving electromagnetic signals |
US10044409B2 (en) | 2015-07-14 | 2018-08-07 | At&T Intellectual Property I, L.P. | Transmission medium and methods for use therewith |
US9929755B2 (en) | 2015-07-14 | 2018-03-27 | At&T Intellectual Property I, L.P. | Method and apparatus for coupling an antenna to a device |
US10033108B2 (en) | 2015-07-14 | 2018-07-24 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating an electromagnetic wave having a wave mode that mitigates interference |
US10790593B2 (en) | 2015-07-14 | 2020-09-29 | At&T Intellectual Property I, L.P. | Method and apparatus including an antenna comprising a lens and a body coupled to a feedline having a structure that reduces reflections of electromagnetic waves |
US11212138B2 (en) | 2015-07-14 | 2021-12-28 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating non-interfering electromagnetic waves on an insulated transmission medium |
US9836957B2 (en) | 2015-07-14 | 2017-12-05 | At&T Intellectual Property I, L.P. | Method and apparatus for communicating with premises equipment |
US9628116B2 (en) | 2015-07-14 | 2017-04-18 | At&T Intellectual Property I, L.P. | Apparatus and methods for transmitting wireless signals |
US10320586B2 (en) | 2015-07-14 | 2019-06-11 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating non-interfering electromagnetic waves on an insulated transmission medium |
US10033107B2 (en) | 2015-07-14 | 2018-07-24 | At&T Intellectual Property I, L.P. | Method and apparatus for coupling an antenna to a device |
US10741923B2 (en) | 2015-07-14 | 2020-08-11 | At&T Intellectual Property I, L.P. | Method and apparatus for coupling an antenna to a device |
US10382072B2 (en) | 2015-07-14 | 2019-08-13 | At&T Intellectual Property I, L.P. | Method and apparatus for coupling an antenna to a device |
US9847566B2 (en) | 2015-07-14 | 2017-12-19 | At&T Intellectual Property I, L.P. | Method and apparatus for adjusting a field of a signal to mitigate interference |
US9947982B2 (en) | 2015-07-14 | 2018-04-17 | At&T Intellectual Property I, Lp | Dielectric transmission medium connector and methods for use therewith |
US10818991B2 (en) | 2015-07-14 | 2020-10-27 | At&T Intellectual Property I, L.P. | Method and apparatus for adjusting a field of a signal to mitigate interference |
US10819542B2 (en) | 2015-07-14 | 2020-10-27 | At&T Intellectual Property I, L.P. | Apparatus and methods for inducing electromagnetic waves on a cable |
US10170840B2 (en) | 2015-07-14 | 2019-01-01 | At&T Intellectual Property I, L.P. | Apparatus and methods for sending or receiving electromagnetic signals |
US10305545B2 (en) | 2015-07-14 | 2019-05-28 | At&T Intellectual Property I, L.P. | Method and apparatus for coupling an antenna to a device |
US9882257B2 (en) | 2015-07-14 | 2018-01-30 | At&T Intellectual Property I, L.P. | Method and apparatus for launching a wave mode that mitigates interference |
US10205655B2 (en) | 2015-07-14 | 2019-02-12 | At&T Intellectual Property I, L.P. | Apparatus and methods for communicating utilizing an antenna array and multiple communication paths |
US9853342B2 (en) | 2015-07-14 | 2017-12-26 | At&T Intellectual Property I, L.P. | Dielectric transmission medium connector and methods for use therewith |
US9722318B2 (en) | 2015-07-14 | 2017-08-01 | At&T Intellectual Property I, L.P. | Method and apparatus for coupling an antenna to a device |
US10594039B2 (en) | 2015-07-14 | 2020-03-17 | At&T Intellectual Property I, L.P. | Apparatus and methods for sending or receiving electromagnetic signals |
US10594597B2 (en) | 2015-07-14 | 2020-03-17 | At&T Intellectual Property I, L.P. | Apparatus and methods for communicating utilizing an antenna array and multiple communication paths |
US10587048B2 (en) | 2015-07-14 | 2020-03-10 | At&T Intellectual Property I, L.P. | Apparatus and methods for communicating utilizing an antenna array |
US11658422B2 (en) | 2015-07-14 | 2023-05-23 | At&T Intellectual Property I, L.P. | Apparatus and methods for sending or receiving electromagnetic signals |
US10566696B2 (en) | 2015-07-14 | 2020-02-18 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating an electromagnetic wave having a wave mode that mitigates interference |
US10511346B2 (en) | 2015-07-14 | 2019-12-17 | At&T Intellectual Property I, L.P. | Apparatus and methods for inducing electromagnetic waves on an uninsulated conductor |
US10469107B2 (en) | 2015-07-14 | 2019-11-05 | At&T Intellectual Property I, L.P. | Apparatus and methods for transmitting wireless signals |
US10439290B2 (en) | 2015-07-14 | 2019-10-08 | At&T Intellectual Property I, L.P. | Apparatus and methods for wireless communications |
US9793951B2 (en) | 2015-07-15 | 2017-10-17 | At&T Intellectual Property I, L.P. | Method and apparatus for launching a wave mode that mitigates interference |
US10916863B2 (en) | 2015-07-15 | 2021-02-09 | At&T Intellectual Property I, L.P. | Antenna system with dielectric array and methods for use therewith |
US10804960B2 (en) | 2015-07-15 | 2020-10-13 | At&T Intellectual Property I, L.P. | Method and apparatus for launching a wave mode that mitigates interference |
US9608740B2 (en) | 2015-07-15 | 2017-03-28 | At&T Intellectual Property I, L.P. | Method and apparatus for launching a wave mode that mitigates interference |
US10090606B2 (en) | 2015-07-15 | 2018-10-02 | At&T Intellectual Property I, L.P. | Antenna system with dielectric array and methods for use therewith |
US10812191B2 (en) | 2015-07-23 | 2020-10-20 | At&T Intellectual Property I, L.P. | Node device, repeater and methods for use therewith |
US10727559B2 (en) | 2015-07-23 | 2020-07-28 | At&T Intellectual Property I, L.P. | Dielectric transmission medium comprising a plurality of rigid dielectric members coupled together in a ball and socket configuration |
US9806818B2 (en) | 2015-07-23 | 2017-10-31 | At&T Intellectual Property I, Lp | Node device, repeater and methods for use therewith |
US9749053B2 (en) | 2015-07-23 | 2017-08-29 | At&T Intellectual Property I, L.P. | Node device, repeater and methods for use therewith |
US10074886B2 (en) | 2015-07-23 | 2018-09-11 | At&T Intellectual Property I, L.P. | Dielectric transmission medium comprising a plurality of rigid dielectric members coupled together in a ball and socket configuration |
US9948333B2 (en) | 2015-07-23 | 2018-04-17 | At&T Intellectual Property I, L.P. | Method and apparatus for wireless communications to mitigate interference |
US9871283B2 (en) | 2015-07-23 | 2018-01-16 | At&T Intellectual Property I, Lp | Transmission medium having a dielectric core comprised of plural members connected by a ball and socket configuration |
US10560191B2 (en) | 2015-07-23 | 2020-02-11 | At&T Intellectual Property I, L.P. | Node device, repeater and methods for use therewith |
US9912027B2 (en) | 2015-07-23 | 2018-03-06 | At&T Intellectual Property I, L.P. | Method and apparatus for exchanging communication signals |
US10784670B2 (en) | 2015-07-23 | 2020-09-22 | At&T Intellectual Property I, L.P. | Antenna support for aligning an antenna |
US10804961B2 (en) | 2015-07-31 | 2020-10-13 | At&T Intellectual Property I, L.P. | Method and apparatus for exchanging communication signals |
US10979342B2 (en) | 2015-07-31 | 2021-04-13 | At&T Intellectual Property 1, L.P. | Method and apparatus for authentication and identity management of communicating devices |
US9967173B2 (en) | 2015-07-31 | 2018-05-08 | At&T Intellectual Property I, L.P. | Method and apparatus for authentication and identity management of communicating devices |
US10938123B2 (en) | 2015-07-31 | 2021-03-02 | At&T Intellectual Property I, L.P. | Radial antenna and methods for use therewith |
US9838078B2 (en) | 2015-07-31 | 2017-12-05 | At&T Intellectual Property I, L.P. | Method and apparatus for exchanging communication signals |
US9461706B1 (en) | 2015-07-31 | 2016-10-04 | At&T Intellectual Property I, Lp | Method and apparatus for exchanging communication signals |
US10020587B2 (en) | 2015-07-31 | 2018-07-10 | At&T Intellectual Property I, L.P. | Radial antenna and methods for use therewith |
US9735833B2 (en) | 2015-07-31 | 2017-08-15 | At&T Intellectual Property I, L.P. | Method and apparatus for communications management in a neighborhood network |
US9904535B2 (en) | 2015-09-14 | 2018-02-27 | At&T Intellectual Property I, L.P. | Method and apparatus for distributing software |
US10772102B2 (en) | 2015-09-16 | 2020-09-08 | At&T Intellectual Property I, L.P. | Method and apparatus for managing utilization of wireless resources via use of a reference signal to reduce distortion |
US10136434B2 (en) | 2015-09-16 | 2018-11-20 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having an ultra-wideband control channel |
US10009063B2 (en) | 2015-09-16 | 2018-06-26 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having an out-of-band reference signal |
US10009901B2 (en) | 2015-09-16 | 2018-06-26 | At&T Intellectual Property I, L.P. | Method, apparatus, and computer-readable storage medium for managing utilization of wireless resources between base stations |
US9705571B2 (en) | 2015-09-16 | 2017-07-11 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system |
US10225842B2 (en) | 2015-09-16 | 2019-03-05 | At&T Intellectual Property I, L.P. | Method, device and storage medium for communications using a modulated signal and a reference signal |
US10931330B2 (en) | 2015-09-16 | 2021-02-23 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having an out-of- band reference signal |
US10079661B2 (en) | 2015-09-16 | 2018-09-18 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having a clock reference |
US10349418B2 (en) | 2015-09-16 | 2019-07-09 | At&T Intellectual Property I, L.P. | Method and apparatus for managing utilization of wireless resources via use of a reference signal to reduce distortion |
US10051629B2 (en) | 2015-09-16 | 2018-08-14 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having an in-band reference signal |
US10736117B2 (en) | 2015-09-16 | 2020-08-04 | At&T Intellectual Property I, L.P. | Method and base station for managing utilization of wireless resources using multiple carrier frequencies |
US9769128B2 (en) | 2015-09-28 | 2017-09-19 | At&T Intellectual Property I, L.P. | Method and apparatus for encryption of communications over a network |
US9729197B2 (en) | 2015-10-01 | 2017-08-08 | At&T Intellectual Property I, L.P. | Method and apparatus for communicating network management traffic over a network |
US9882277B2 (en) | 2015-10-02 | 2018-01-30 | At&T Intellectual Property I, Lp | Communication device and antenna assembly with actuated gimbal mount |
US9876264B2 (en) | 2015-10-02 | 2018-01-23 | At&T Intellectual Property I, Lp | Communication system, guided wave switch and methods for use therewith |
US10074890B2 (en) | 2015-10-02 | 2018-09-11 | At&T Intellectual Property I, L.P. | Communication device and antenna with integrated light assembly |
US20170110804A1 (en) * | 2015-10-16 | 2017-04-20 | At&T Intellectual Property I, Lp | Antenna structure for exchanging wireless signals |
US10355367B2 (en) * | 2015-10-16 | 2019-07-16 | At&T Intellectual Property I, L.P. | Antenna structure for exchanging wireless signals |
US10665942B2 (en) | 2015-10-16 | 2020-05-26 | At&T Intellectual Property I, L.P. | Method and apparatus for adjusting wireless communications |
US10051483B2 (en) | 2015-10-16 | 2018-08-14 | At&T Intellectual Property I, L.P. | Method and apparatus for directing wireless signals |
US10743196B2 (en) | 2015-10-16 | 2020-08-11 | At&T Intellectual Property I, L.P. | Method and apparatus for directing wireless signals |
US20170141474A1 (en) * | 2015-11-13 | 2017-05-18 | Vega Grieshaber Kg | Horn antenna and radar level gauge comprising a horn antenna |
US10680729B2 (en) | 2016-08-24 | 2020-06-09 | At&T Intellectual Property I, L.P. | Method and apparatus for managing a fault in a distributed antenna system |
US9912419B1 (en) | 2016-08-24 | 2018-03-06 | At&T Intellectual Property I, L.P. | Method and apparatus for managing a fault in a distributed antenna system |
US9860075B1 (en) | 2016-08-26 | 2018-01-02 | At&T Intellectual Property I, L.P. | Method and communication node for broadband distribution |
US10924143B2 (en) | 2016-08-26 | 2021-02-16 | At&T Intellectual Property I, L.P. | Method and communication node for broadband distribution |
US10291311B2 (en) | 2016-09-09 | 2019-05-14 | At&T Intellectual Property I, L.P. | Method and apparatus for mitigating a fault in a distributed antenna system |
US11032819B2 (en) | 2016-09-15 | 2021-06-08 | At&T Intellectual Property I, L.P. | Method and apparatus for use with a radio distributed antenna system having a control channel reference signal |
US10135146B2 (en) | 2016-10-18 | 2018-11-20 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching guided waves via circuits |
US10135147B2 (en) | 2016-10-18 | 2018-11-20 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching guided waves via an antenna |
US11205853B2 (en) | 2016-10-18 | 2021-12-21 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching guided waves via circuits |
US10340600B2 (en) | 2016-10-18 | 2019-07-02 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching guided waves via plural waveguide systems |
US11652297B2 (en) | 2016-10-18 | 2023-05-16 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching guided waves via circuits |
US10811767B2 (en) | 2016-10-21 | 2020-10-20 | At&T Intellectual Property I, L.P. | System and dielectric antenna with convex dielectric radome |
US10644372B2 (en) | 2016-10-21 | 2020-05-05 | At&T Intellectual Property I, L.P. | Launcher and coupling system for guided wave mode cancellation |
US10811779B2 (en) | 2016-10-21 | 2020-10-20 | At&T Intellectual Property I, L.P. | System and dielectric antenna with non-uniform dielectric |
US9991580B2 (en) | 2016-10-21 | 2018-06-05 | At&T Intellectual Property I, L.P. | Launcher and coupling system for guided wave mode cancellation |
US9876605B1 (en) | 2016-10-21 | 2018-01-23 | At&T Intellectual Property I, L.P. | Launcher and coupling system to support desired guided wave mode |
US10374316B2 (en) | 2016-10-21 | 2019-08-06 | At&T Intellectual Property I, L.P. | System and dielectric antenna with non-uniform dielectric |
US10797370B2 (en) | 2016-10-26 | 2020-10-06 | At&T Intellectual Property I, L.P. | Launcher with cylindrical coupling device and methods for use therewith |
US10340573B2 (en) | 2016-10-26 | 2019-07-02 | At&T Intellectual Property I, L.P. | Launcher with cylindrical coupling device and methods for use therewith |
US10312567B2 (en) | 2016-10-26 | 2019-06-04 | At&T Intellectual Property I, L.P. | Launcher with planar strip antenna and methods for use therewith |
US10749614B2 (en) | 2016-11-03 | 2020-08-18 | At&T Intellectual Property I, L.P. | Method and apparatus for detecting a fault in a communication system |
US10291334B2 (en) | 2016-11-03 | 2019-05-14 | At&T Intellectual Property I, L.P. | System for detecting a fault in a communication system |
US10225025B2 (en) | 2016-11-03 | 2019-03-05 | At&T Intellectual Property I, L.P. | Method and apparatus for detecting a fault in a communication system |
US10224634B2 (en) | 2016-11-03 | 2019-03-05 | At&T Intellectual Property I, L.P. | Methods and apparatus for adjusting an operational characteristic of an antenna |
US10615889B2 (en) | 2016-11-03 | 2020-04-07 | At&T Intellectual Property I, L.P. | System for detecting a fault in a communication system |
US10498044B2 (en) | 2016-11-03 | 2019-12-03 | At&T Intellectual Property I, L.P. | Apparatus for configuring a surface of an antenna |
US10687124B2 (en) | 2016-11-23 | 2020-06-16 | At&T Intellectual Property I, L.P. | Methods, devices, and systems for load balancing between a plurality of waveguides |
US20180145414A1 (en) * | 2016-11-23 | 2018-05-24 | At&T Intellectual Property I, L.P. | Antenna system and methods for use therewith |
US10340601B2 (en) | 2016-11-23 | 2019-07-02 | At&T Intellectual Property I, L.P. | Multi-antenna system and methods for use therewith |
US10090594B2 (en) | 2016-11-23 | 2018-10-02 | At&T Intellectual Property I, L.P. | Antenna system having structural configurations for assembly |
US10535928B2 (en) * | 2016-11-23 | 2020-01-14 | At&T Intellectual Property I, L.P. | Antenna system and methods for use therewith |
US10178445B2 (en) | 2016-11-23 | 2019-01-08 | At&T Intellectual Property I, L.P. | Methods, devices, and systems for load balancing between a plurality of waveguides |
US11139580B2 (en) | 2016-11-23 | 2021-10-05 | At&T Intellectual Property I, L.P. | Multi-antenna system and methods for use therewith |
US10340603B2 (en) | 2016-11-23 | 2019-07-02 | At&T Intellectual Property I, L.P. | Antenna system having shielded structural configurations for assembly |
US10361489B2 (en) | 2016-12-01 | 2019-07-23 | At&T Intellectual Property I, L.P. | Dielectric dish antenna system and methods for use therewith |
US10305190B2 (en) | 2016-12-01 | 2019-05-28 | At&T Intellectual Property I, L.P. | Reflecting dielectric antenna system and methods for use therewith |
US10720713B2 (en) | 2016-12-01 | 2020-07-21 | At&T Intellectual Property I, L.P. | Dielectric dish antenna system and methods for use therewith |
US10382976B2 (en) | 2016-12-06 | 2019-08-13 | At&T Intellectual Property I, L.P. | Method and apparatus for managing wireless communications based on communication paths and network device positions |
US10629994B2 (en) | 2016-12-06 | 2020-04-21 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating an electromagnetic wave along a transmission medium |
US10637149B2 (en) | 2016-12-06 | 2020-04-28 | At&T Intellectual Property I, L.P. | Injection molded dielectric antenna and methods for use therewith |
US10439675B2 (en) | 2016-12-06 | 2019-10-08 | At&T Intellectual Property I, L.P. | Method and apparatus for repeating guided wave communication signals |
US10727599B2 (en) | 2016-12-06 | 2020-07-28 | At&T Intellectual Property I, L.P. | Launcher with slot antenna and methods for use therewith |
US10326494B2 (en) | 2016-12-06 | 2019-06-18 | At&T Intellectual Property I, L.P. | Apparatus for measurement de-embedding and methods for use therewith |
US11206552B2 (en) | 2016-12-06 | 2021-12-21 | At&T Intellectual Property I, L.P. | Method and apparatus for managing wireless communications based on communication paths and network device positions |
US10694379B2 (en) | 2016-12-06 | 2020-06-23 | At&T Intellectual Property I, L.P. | Waveguide system with device-based authentication and methods for use therewith |
US10755542B2 (en) | 2016-12-06 | 2020-08-25 | At&T Intellectual Property I, L.P. | Method and apparatus for surveillance via guided wave communication |
US10135145B2 (en) | 2016-12-06 | 2018-11-20 | At&T Intellectual Property I, L.P. | Apparatus and methods for generating an electromagnetic wave along a transmission medium |
US10886969B2 (en) | 2016-12-06 | 2021-01-05 | At&T Intellectual Property I, L.P. | Method and apparatus for broadcast communication via guided waves |
US9927517B1 (en) | 2016-12-06 | 2018-03-27 | At&T Intellectual Property I, L.P. | Apparatus and methods for sensing rainfall |
US10020844B2 (en) | 2016-12-06 | 2018-07-10 | T&T Intellectual Property I, L.P. | Method and apparatus for broadcast communication via guided waves |
US10819035B2 (en) | 2016-12-06 | 2020-10-27 | At&T Intellectual Property I, L.P. | Launcher with helical antenna and methods for use therewith |
US11189932B2 (en) | 2016-12-06 | 2021-11-30 | At&T Intellectual Property I, L.P. | Injection molded dielectric antenna formed with an antenna mold that compensates the dielectric during curing |
US10658726B2 (en) | 2016-12-06 | 2020-05-19 | At&T Intellectual Property I, L.P. | Methods and apparatus for adjusting a phase of electromagnetic waves |
US9893795B1 (en) | 2016-12-07 | 2018-02-13 | At&T Intellectual Property I, Lp | Method and repeater for broadband distribution |
US10944466B2 (en) | 2016-12-07 | 2021-03-09 | At&T Intellectual Property I, L.P. | Distributed antenna system and methods for use therewith |
US11183877B2 (en) | 2016-12-07 | 2021-11-23 | At&T Intellectual Property I, L.P. | Method and apparatus for utilities management via guided wave communication |
US10359749B2 (en) | 2016-12-07 | 2019-07-23 | At&T Intellectual Property I, L.P. | Method and apparatus for utilities management via guided wave communication |
US10243270B2 (en) | 2016-12-07 | 2019-03-26 | At&T Intellectual Property I, L.P. | Beam adaptive multi-feed dielectric antenna system and methods for use therewith |
US10959072B2 (en) | 2016-12-07 | 2021-03-23 | At&T Intellectual Property I, L.P. | Method and apparatus for deploying equipment of a communication system |
US11184050B2 (en) | 2016-12-07 | 2021-11-23 | At&T Intellectual Property I, L.P. | Method and apparatus for switching transmission mediums in a communication system |
US10931018B2 (en) | 2016-12-07 | 2021-02-23 | At&T Intellectual Property I, L.P. | Multi-feed dielectric antenna system with core selection and methods for use therewith |
US10389029B2 (en) | 2016-12-07 | 2019-08-20 | At&T Intellectual Property I, L.P. | Multi-feed dielectric antenna system with core selection and methods for use therewith |
US10944177B2 (en) | 2016-12-07 | 2021-03-09 | At&T Intellectual Property 1, L.P. | Multi-feed dielectric antenna system and methods for use therewith |
US10168695B2 (en) | 2016-12-07 | 2019-01-01 | At&T Intellectual Property I, L.P. | Method and apparatus for controlling an unmanned aircraft |
US10547348B2 (en) | 2016-12-07 | 2020-01-28 | At&T Intellectual Property I, L.P. | Method and apparatus for switching transmission mediums in a communication system |
US10139820B2 (en) | 2016-12-07 | 2018-11-27 | At&T Intellectual Property I, L.P. | Method and apparatus for deploying equipment of a communication system |
US10027397B2 (en) | 2016-12-07 | 2018-07-17 | At&T Intellectual Property I, L.P. | Distributed antenna system and methods for use therewith |
US10446936B2 (en) | 2016-12-07 | 2019-10-15 | At&T Intellectual Property I, L.P. | Multi-feed dielectric antenna system and methods for use therewith |
US9911020B1 (en) | 2016-12-08 | 2018-03-06 | At&T Intellectual Property I, L.P. | Method and apparatus for tracking via a radio frequency identification device |
US11146916B2 (en) | 2016-12-08 | 2021-10-12 | At&T Intellectual Property I, L.P. | Method and apparatus for proximity sensing on a communication device |
US10938108B2 (en) | 2016-12-08 | 2021-03-02 | At&T Intellectual Property I, L.P. | Frequency selective multi-feed dielectric antenna system and methods for use therewith |
US10326689B2 (en) | 2016-12-08 | 2019-06-18 | At&T Intellectual Property I, L.P. | Method and system for providing alternative communication paths |
US10916969B2 (en) | 2016-12-08 | 2021-02-09 | At&T Intellectual Property I, L.P. | Method and apparatus for providing power using an inductive coupling |
US10389037B2 (en) | 2016-12-08 | 2019-08-20 | At&T Intellectual Property I, L.P. | Apparatus and methods for selecting sections of an antenna array and use therewith |
US10411356B2 (en) | 2016-12-08 | 2019-09-10 | At&T Intellectual Property I, L.P. | Apparatus and methods for selectively targeting communication devices with an antenna array |
US10103422B2 (en) | 2016-12-08 | 2018-10-16 | At&T Intellectual Property I, L.P. | Method and apparatus for mounting network devices |
US10819034B2 (en) | 2016-12-08 | 2020-10-27 | At&T Intellectual Property I, L.P. | Apparatus and methods for selectively targeting communication devices with an antenna array |
US10530505B2 (en) | 2016-12-08 | 2020-01-07 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching electromagnetic waves along a transmission medium |
US9998870B1 (en) | 2016-12-08 | 2018-06-12 | At&T Intellectual Property I, L.P. | Method and apparatus for proximity sensing |
US10727902B2 (en) | 2016-12-08 | 2020-07-28 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching electromagnetic waves having a certain electric field structure |
US10601494B2 (en) | 2016-12-08 | 2020-03-24 | At&T Intellectual Property I, L.P. | Dual-band communication device and method for use therewith |
US10811781B2 (en) | 2016-12-08 | 2020-10-20 | At&T Intellectual Property I, L.P. | Apparatus and methods for selecting sections of an antenna array and use therewith |
US10834607B2 (en) | 2016-12-08 | 2020-11-10 | At&T Intellectual Property I, L.P. | Method and apparatus for collecting data associated with wireless communications |
US10777873B2 (en) | 2016-12-08 | 2020-09-15 | At&T Intellectual Property I, L.P. | Method and apparatus for mounting network devices |
US10069535B2 (en) | 2016-12-08 | 2018-09-04 | At&T Intellectual Property I, L.P. | Apparatus and methods for launching electromagnetic waves having a certain electric field structure |
US10779286B2 (en) | 2016-12-09 | 2020-09-15 | At&T Intellectual Property I, L.P. | Cloud-based packet controller and methods for use therewith |
US10264586B2 (en) | 2016-12-09 | 2019-04-16 | At&T Mobility Ii Llc | Cloud-based packet controller and methods for use therewith |
US9838896B1 (en) | 2016-12-09 | 2017-12-05 | At&T Intellectual Property I, L.P. | Method and apparatus for assessing network coverage |
US10340983B2 (en) | 2016-12-09 | 2019-07-02 | At&T Intellectual Property I, L.P. | Method and apparatus for surveying remote sites via guided wave communications |
US9973940B1 (en) | 2017-02-27 | 2018-05-15 | At&T Intellectual Property I, L.P. | Apparatus and methods for dynamic impedance matching of a guided wave launcher |
US10298293B2 (en) | 2017-03-13 | 2019-05-21 | At&T Intellectual Property I, L.P. | Apparatus of communication utilizing wireless network devices |
US10924158B2 (en) | 2017-04-11 | 2021-02-16 | At&T Intellectual Property I, L.P. | Machine assisted development of deployment site inventory |
US10720962B2 (en) | 2017-07-05 | 2020-07-21 | At&T Intellectual Property I, L.P. | Method and apparatus for reducing radiation from an external surface of a waveguide structure |
US10727898B2 (en) | 2017-07-05 | 2020-07-28 | At&T Intellectual Property I, L.P. | Method and apparatus for reducing flow of currents on an outer surface of a structure |
US10964995B2 (en) | 2017-09-05 | 2021-03-30 | At&T Intellectual Property I, L.P. | Dielectric coupling system with mode control and methods for use therewith |
US11018401B2 (en) | 2017-09-05 | 2021-05-25 | At&T Intellectual Property I, L.P. | Flared dielectric coupling system and methods for use therewith |
US11108126B2 (en) | 2017-09-05 | 2021-08-31 | At&T Intellectual Property I, L.P. | Multi-arm dielectric coupling system and methods for use therewith |
US10727901B2 (en) | 2017-09-06 | 2020-07-28 | At&T Intellectual Property I, L.P. | Antenna structure with circularly polarized antenna beam |
US10840602B2 (en) | 2017-09-06 | 2020-11-17 | At&T Intellectual Property I, L.P. | Multimode antenna system and methods for use therewith |
US10764762B2 (en) | 2017-10-04 | 2020-09-01 | At&T Intellectual Property I, L.P. | Apparatus and methods for distributing a communication signal obtained from ultra-wideband electromagnetic waves |
US10644747B2 (en) | 2017-10-04 | 2020-05-05 | At&T Intellectual Property I, L.P. | Apparatus and methods for processing ultra-wideband electromagnetic waves |
US11431555B2 (en) | 2017-10-04 | 2022-08-30 | At&T Intellectual Property I, L.P. | Apparatus and methods for mitigating a fault that adversely affects ultra-wideband transmissions |
US10602377B2 (en) | 2017-10-19 | 2020-03-24 | At&T Intellectual Property I, L.P. | Dual mode communications device with null steering and methods for use therewith |
US10945138B2 (en) | 2017-10-19 | 2021-03-09 | At&T Intellectual Property I, L.P. | Dual mode communications device with remote device feedback and methods for use therewith |
US10763916B2 (en) | 2017-10-19 | 2020-09-01 | At&T Intellectual Property I, L.P. | Dual mode antenna systems and methods for use therewith |
US10714831B2 (en) | 2017-10-19 | 2020-07-14 | At&T Intellectual Property I, L.P. | Dual mode communications device with remote radio head and methods for use therewith |
US10827365B2 (en) | 2017-10-19 | 2020-11-03 | At&T Intellectual Property I, L.P. | Dual mode communications device with null steering and methods for use therewith |
US10886629B2 (en) | 2017-10-26 | 2021-01-05 | At&T Intellectual Property I, L.P. | Antenna system with planar antenna and methods for use therewith |
US11381007B2 (en) | 2017-10-26 | 2022-07-05 | At&T Intellectual Property I, L.P. | Antenna system with planar antenna and directors and methods for use therewith |
US10826548B2 (en) | 2017-11-06 | 2020-11-03 | At&T Intellectual Property I, L.P. | Multi-input multi-output guided wave system and methods for use therewith |
US10887891B2 (en) | 2017-11-09 | 2021-01-05 | At&T Intellectual Property I, L.P. | Guided wave communication system with resource allocation and methods for use therewith |
US10644752B2 (en) | 2017-11-09 | 2020-05-05 | At&T Intellectual Property I, L.P. | Guided wave communication system with interference mitigation and methods for use therewith |
US11051240B2 (en) | 2017-11-15 | 2021-06-29 | At&T Intellectual Property I, L.P. | Access point and methods for communicating resource blocks with guided electromagnetic waves |
US10560151B2 (en) | 2017-11-15 | 2020-02-11 | At&T Intellectual Property I, L.P. | Access point and methods for communicating with guided electromagnetic waves |
US10819392B2 (en) | 2017-11-15 | 2020-10-27 | At&T Intellectual Property I, L.P. | Access point and methods for communicating with guided electromagnetic waves |
US10833743B2 (en) | 2017-12-01 | 2020-11-10 | AT&T Intelletual Property I. L.P. | Methods and apparatus for generating and receiving electromagnetic waves |
US10820329B2 (en) | 2017-12-04 | 2020-10-27 | At&T Intellectual Property I, L.P. | Guided wave communication system with interference mitigation and methods for use therewith |
US10770799B2 (en) | 2017-12-06 | 2020-09-08 | At&T Intellectual Property I, L.P. | Method and apparatus for communication using variable permittivity polyrod antenna |
US11018525B2 (en) | 2017-12-07 | 2021-05-25 | At&T Intellectual Property 1, L.P. | Methods and apparatus for increasing a transfer of energy in an inductive power supply |
US10686493B2 (en) | 2018-03-26 | 2020-06-16 | At&T Intellectual Property I, L.P. | Switching of data channels provided in electromagnetic waves and methods thereof |
US10826562B2 (en) | 2018-03-26 | 2020-11-03 | At&T Intellectual Property I, L.P. | Coaxial surface wave communication system and methods for use therewith |
US10616056B2 (en) | 2018-03-26 | 2020-04-07 | At&T Intellectual Property I, L.P. | Modulation and demodulation of signals conveyed by electromagnetic waves and methods thereof |
US11165642B2 (en) | 2018-03-26 | 2021-11-02 | At&T Intellectual Property I, L.P. | Processing of electromagnetic waves and methods thereof |
US10833729B2 (en) | 2018-03-26 | 2020-11-10 | At&T Intellectual Property I, L.P. | Surface wave communication system and methods for use therewith |
US10727577B2 (en) | 2018-03-29 | 2020-07-28 | At&T Intellectual Property I, L.P. | Exchange of wireless signals guided by a transmission medium and methods thereof |
US11070085B2 (en) | 2018-03-30 | 2021-07-20 | At&T Intellectual Property I, L.P. | Methods and apparatus for regulating a magnetic flux in an inductive power supply |
US11546258B2 (en) | 2018-03-30 | 2023-01-03 | At&T Intellectual Property I, L.P. | Method and apparatus for switching of data channels provided in electromagnetic waves |
US10911099B2 (en) | 2018-05-16 | 2021-02-02 | At&T Intellectual Property I, L.P. | Method and apparatus for communications using electromagnetic waves and an insulator |
US10804962B2 (en) | 2018-07-09 | 2020-10-13 | At&T Intellectual Property I, L.P. | Method and apparatus for communications using electromagnetic waves |
US10622722B2 (en) | 2018-08-13 | 2020-04-14 | At&T Intellecual Property I, L.P. | System and method for launching guided electromagnetic waves with impedance matching |
US10778286B2 (en) | 2018-09-12 | 2020-09-15 | At&T Intellectual Property I, L.P. | Methods and apparatus for transmitting or receiving electromagnetic waves |
US10924942B2 (en) | 2018-09-12 | 2021-02-16 | At&T Intellectual Property I, L.P. | Apparatus and methods for transmitting or receiving electromagnetic waves |
US10833727B2 (en) | 2018-10-02 | 2020-11-10 | At&T Intellectual Property I, L.P. | Methods and apparatus for launching or receiving electromagnetic waves |
US11632146B2 (en) | 2018-10-02 | 2023-04-18 | At&T Intellectual Property I, L.P. | Methods and apparatus for launching or receiving electromagnetic waves |
US10886972B2 (en) | 2018-10-10 | 2021-01-05 | At&T Intellectual Property I, L.P. | Methods and apparatus for selectively controlling energy consumption of a waveguide system |
US10693667B2 (en) | 2018-10-12 | 2020-06-23 | At&T Intellectual Property I, L.P. | Methods and apparatus for exchanging communication signals via a cable of twisted pair wires |
US10804586B2 (en) | 2018-10-18 | 2020-10-13 | At&T Intellectual Property I, L.P. | System and method for launching scattering electromagnetic waves |
US10931012B2 (en) | 2018-11-14 | 2021-02-23 | At&T Intellectual Property I, L.P. | Device with programmable reflector for transmitting or receiving electromagnetic waves |
US10957977B2 (en) | 2018-11-14 | 2021-03-23 | At&T Intellectual Property I, L.P. | Device with virtual reflector for transmitting or receiving electromagnetic waves |
US10938104B2 (en) | 2018-11-16 | 2021-03-02 | At&T Intellectual Property I, L.P. | Method and apparatus for mitigating a change in an orientation of an antenna |
US10727955B2 (en) | 2018-11-29 | 2020-07-28 | At&T Intellectual Property I, L.P. | Method and apparatus for power delivery to waveguide systems |
US11082091B2 (en) | 2018-11-29 | 2021-08-03 | At&T Intellectual Property I, L.P. | Method and apparatus for communication utilizing electromagnetic waves and a power line |
US10914904B2 (en) | 2018-11-29 | 2021-02-09 | At&T Intellectual Property I, L.P. | Method and apparatus for providing power to waveguide systems |
US10965344B2 (en) | 2018-11-29 | 2021-03-30 | At&T Intellectual Property 1, L.P. | Methods and apparatus for exchanging wireless signals utilizing electromagnetic waves having differing characteristics |
US10623033B1 (en) | 2018-11-29 | 2020-04-14 | At&T Intellectual Property I, L.P. | Methods and apparatus to reduce distortion between electromagnetic wave transmissions |
US10812139B2 (en) | 2018-11-29 | 2020-10-20 | At&T Intellectual Property I, L.P. | Method and apparatus for communication utilizing electromagnetic waves and a telecommunication line |
US10623057B1 (en) | 2018-12-03 | 2020-04-14 | At&T Intellectual Property I, L.P. | Guided wave directional coupler and methods for use therewith |
US10623056B1 (en) | 2018-12-03 | 2020-04-14 | At&T Intellectual Property I, L.P. | Guided wave splitter and methods for use therewith |
US11283182B2 (en) | 2018-12-03 | 2022-03-22 | At&T Intellectual Property I, L.P. | Guided wave launcher with lens and methods for use therewith |
US10785125B2 (en) | 2018-12-03 | 2020-09-22 | At&T Intellectual Property I, L.P. | Method and procedure for generating reputation scores for IoT devices based on distributed analysis |
US11171960B2 (en) | 2018-12-03 | 2021-11-09 | At&T Intellectual Property I, L.P. | Network security management based on collection and cataloging of network-accessible device information |
US10819391B2 (en) | 2018-12-03 | 2020-10-27 | At&T Intellectual Property I, L.P. | Guided wave launcher with reflector and methods for use therewith |
US10978773B2 (en) | 2018-12-03 | 2021-04-13 | At&T Intellectual Property I, L.P. | Guided wave dielectric coupler having a dielectric cable with an exposed dielectric core position for enabling electromagnetic coupling between the cable and a transmission medium |
US11205857B2 (en) | 2018-12-04 | 2021-12-21 | At&T Intellectual Property I, L.P. | System and method for launching guided electromagnetic waves with channel feedback |
US11362438B2 (en) | 2018-12-04 | 2022-06-14 | At&T Intellectual Property I, L.P. | Configurable guided wave launcher and methods for use therewith |
US10977932B2 (en) | 2018-12-04 | 2021-04-13 | At&T Intellectual Property I, L.P. | Method and apparatus for electromagnetic wave communications associated with vehicular traffic |
US10826607B2 (en) | 2018-12-06 | 2020-11-03 | At&T Intellectual Property I, L.P. | Free-space, twisted light optical communication system |
US10637535B1 (en) | 2018-12-10 | 2020-04-28 | At&T Intellectual Property I, L.P. | Methods and apparatus to receive electromagnetic wave transmissions |
US10666323B1 (en) | 2018-12-13 | 2020-05-26 | At&T Intellectual Property I, L.P. | Methods and apparatus for monitoring conditions to switch between modes of transmission |
US10812142B2 (en) | 2018-12-13 | 2020-10-20 | At&T Intellectual Property I, L.P. | Method and apparatus for mitigating thermal stress in a waveguide communication system |
US10886589B1 (en) | 2019-12-02 | 2021-01-05 | At&T Intellectual Property I, L.P. | Guided wave coupling system for telephony cable messenger wire and methods for use therewith |
US11283177B2 (en) | 2019-12-02 | 2022-03-22 | At&T Intellectual Property I, L.P. | Surface wave transmission device with RF housing and methods for use therewith |
US10812136B1 (en) | 2019-12-02 | 2020-10-20 | At&T Intellectual Property I, L.P. | Surface wave repeater with controllable isolator and methods for use therewith |
US10951265B1 (en) | 2019-12-02 | 2021-03-16 | At&T Intellectual Property I, L.P. | Surface wave repeater with cancellation and methods for use therewith |
US10951266B1 (en) | 2019-12-03 | 2021-03-16 | At&T Intellectual Property I, L.P. | Guided wave coupling system for telephony cable wrap wire and methods for use therewith |
US10930992B1 (en) | 2019-12-03 | 2021-02-23 | At&T Intellectual Property I, L.P. | Method and apparatus for communicating between waveguide systems |
US10833730B1 (en) | 2019-12-03 | 2020-11-10 | At&T Intellectual Property I, L.P. | Method and apparatus for providing power to a waveguide system |
US10812144B1 (en) | 2019-12-03 | 2020-10-20 | At&T Intellectual Property I, L.P. | Surface wave repeater and methods for use therewith |
US11502724B2 (en) | 2019-12-03 | 2022-11-15 | At&T Intellectual Property I, L.P. | Method and apparatus for transitioning between electromagnetic wave modes |
US10812291B1 (en) | 2019-12-03 | 2020-10-20 | At&T Intellectual Property I, L.P. | Method and apparatus for communicating between a waveguide system and a base station device |
US11277159B2 (en) | 2019-12-03 | 2022-03-15 | At&T Intellectual Property I, L.P. | Method and apparatus for managing propagation delays of electromagnetic waves |
US11387560B2 (en) | 2019-12-03 | 2022-07-12 | At&T Intellectual Property I, L.P. | Impedance matched launcher with cylindrical coupling device and methods for use therewith |
US11070250B2 (en) | 2019-12-03 | 2021-07-20 | At&T Intellectual Property I, L.P. | Method and apparatus for calibrating waveguide systems to manage propagation delays of electromagnetic waves |
US10992343B1 (en) | 2019-12-04 | 2021-04-27 | At&T Intellectual Property I, L.P. | Guided electromagnetic wave communications via an underground cable |
US11223098B2 (en) | 2019-12-04 | 2022-01-11 | At&T Intellectual Property I, L.P. | Waveguide system comprising a scattering device for generating a second non-fundamental wave mode from a first non-fundamental wave mode |
US10804959B1 (en) | 2019-12-04 | 2020-10-13 | At&T Intellectual Property I, L.P. | Transmission device with corona discharge mitigation and methods for use therewith |
US11356208B2 (en) | 2019-12-04 | 2022-06-07 | At&T Intellectual Property I, L.P. | Transmission device with hybrid ARQ and methods for use therewith |
US10951267B1 (en) | 2019-12-04 | 2021-03-16 | At&T Intellectual Property I, L.P. | Method and apparatus for adapting a waveguide to properties of a physical transmission medium |
US11063334B2 (en) | 2019-12-05 | 2021-07-13 | At&T Intellectual Property I, L.P. | Method and apparatus having one or more adjustable structures for launching or receiving electromagnetic waves having a desired wavemode |
US10812123B1 (en) | 2019-12-05 | 2020-10-20 | At&T Intellectual Property I, L.P. | Magnetic coupler for launching and receiving electromagnetic waves and methods thereof |
US11581917B2 (en) | 2019-12-05 | 2023-02-14 | At&T Intellectual Property I, L.P. | Method and apparatus adapted to a characteristic of an outer surface of a transmission medium for launching or receiving electromagnetic waves |
US11031667B1 (en) | 2019-12-05 | 2021-06-08 | At&T Intellectual Property I, L.P. | Method and apparatus having an adjustable structure positioned along a transmission medium for launching or receiving electromagnetic waves having a desired wavemode |
US11356143B2 (en) | 2019-12-10 | 2022-06-07 | At&T Intellectual Property I, L.P. | Waveguide system with power stabilization and methods for use therewith |
US11201753B1 (en) | 2020-06-12 | 2021-12-14 | At&T Intellectual Property I, L.P. | Method and apparatus for managing power being provided to a waveguide system |
US11171764B1 (en) | 2020-08-21 | 2021-11-09 | At&T Intellectual Property I, L.P. | Method and apparatus for automatically retransmitting corrupted data |
US11456771B1 (en) | 2021-03-17 | 2022-09-27 | At&T Intellectual Property I, L.P. | Apparatuses and methods for facilitating a conveyance of status in communication systems and networks |
US11533079B2 (en) | 2021-03-17 | 2022-12-20 | At&T Intellectual Property I, L.P. | Methods and apparatuses for facilitating guided wave communications with an enhanced flexibility in parameters |
US11569868B2 (en) | 2021-03-17 | 2023-01-31 | At&T Intellectual Property I, L.P. | Apparatuses and methods for enhancing a reliability of power available to communicaton devices via an insulator |
US11671926B2 (en) | 2021-03-17 | 2023-06-06 | At&T Intellectual Property I, L.P. | Methods and apparatuses for facilitating signaling and power in a communication system |
US11664883B2 (en) | 2021-04-06 | 2023-05-30 | At&T Intellectual Property I, L.P. | Time domain duplexing repeater using envelope detection |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3389394A (en) | Multiple frequency antenna | |
US9960495B1 (en) | Integrated single-piece antenna feed and circular polarizer | |
US3555553A (en) | Coaxial-line to waveguide transition for horn antenna | |
US2825060A (en) | Dual-polarization antenna | |
US3568204A (en) | Multimode antenna feed system having a plurality of tracking elements mounted symmetrically about the inner walls and at the aperture end of a scalar horn | |
US4258366A (en) | Multifrequency broadband polarized horn antenna | |
US3231892A (en) | Antenna feed system simultaneously operable at two frequencies utilizing polarization independent frequency selective intermediate reflector | |
US5134420A (en) | Bicone antenna with hemispherical beam | |
US2945227A (en) | Improvements in ultra short wave directive aerials | |
US2663797A (en) | Directive antenna | |
EP0638957A1 (en) | Slot-coupled fed dual circular polarization TEM mode slot array antenna | |
US3500419A (en) | Dual frequency,dual polarized cassegrain antenna | |
US2846678A (en) | Dual frequency antenna | |
US3268902A (en) | Dual frequency microwave aperturetype antenna providing similar radiation pattern on both frequencies | |
JPH08511924A (en) | Radiation sensor | |
US3274603A (en) | Wide angle horn feed closely spaced to main reflector | |
US3100894A (en) | Dual frequency feed horn | |
US2820965A (en) | Dual polarization antenna | |
US2603749A (en) | Directive antenna system | |
US3150333A (en) | Coupling orthogonal polarizations in a common square waveguide with modes in individual waveguides | |
EP0290508B1 (en) | Orthogonal mode electromagnetic wave launcher | |
US3825932A (en) | Waveguide antenna | |
US2719230A (en) | Dual frequency antenna | |
US3778838A (en) | Circular symmetric beam forming apparatus | |
US2921309A (en) | Surface wave omnidirectional antenna |