Abstract: A contiguous radiating ring antenna structure suitable for a vehicle is disclosed. The antenna structure comprises a curved shape structure having a plurality of radiating rings, a plurality of sectors, a connecting unit, and a plurality of frequency barriers. The antenna structure has a phase variation of less than 2° degrees over 360° of azimuth coverage and about +/?85° of elevation coverage. The antenna structure has a thickness of less than 0.5 inches. The contiguous radiating ring antenna structure is design for demanding vehicular applications, including missiles, rockets, and aircraft. The contiguous radiating annular ring antenna comprises a beam forming network, which is configured to be incorporated into a printed antenna board for enhancing the vehicular communications.

Abstract: A multi-band ground antenna with a nested concentric coaxial feed assembly is disclosed for supporting multiple frequency bands. The nested concentric coaxial feed assembly is attached to an antenna reflector through an attachment unit. The nested concentric coaxial feed assembly is located at a reflector focal point. The nested concentric coaxial feed assembly comprises an elongated housing, a feed cone, and a sub-reflector. The nested concentric coaxial feed assembly operates seamlessly across a wider bandwidth, without any gaps or performance drops. The multi-band ground antenna with multiple bands is being introduced for ground communications. The multi-band ground antenna comprises a nested concentric coaxial feed assembly, which supports a wide range of frequencies varies between 2 GHz and 36 GHz. The multi-band ground antenna is designed to be used in satellites and aircraft.

Abstract: A deployable manpack antenna assembly comprises a transceiver antenna unit, a first support rod, a flexible conduit connector, a second support rod, a base unit, a latching unit, a clamping unit, and at least two sleeve retainer stops. The deployable manpack antenna assembly is configured for use in military applications, particularly relating to ground-party communications systems intended to be used in both communications-at-the-halt (CATH) and communications-on-the-move (COTM). The manpack antenna assembly operates in Ku, K and Ka bands for soldiers in the battlefield. The manpack antenna assembly comprises one of the two antennas, a biconical variant antenna, or an inverted-F variant antenna, both of which operate at Ku-band, K-band, and Ka-band simultaneously.

Abstract: A deployable manpack antenna assembly comprises a transceiver antenna unit, a first support rod, a flexible conduit connector, a second support rod, a base unit, a latching unit, a clamping unit, and at least two sleeve retainer stops. The deployable manpack antenna assembly is configured for use in military applications, particularly relating to ground-party communications systems intended to be used in both communications-at-the-halt (CATH) and communications-on-the-move (COTM). The manpack antenna assembly operates in Ku, K and Ka bands for soldiers in the battlefield. The manpack antenna assembly comprises one of the two antennas, a biconical variant antenna, or an inverted-F variant antenna, both of which operate at Ku-band, K-band, and Ka-band simultaneously.

Abstract: A segmented ultra-wideband antenna system that facilitates communication with aircraft, satellites, ships, and other ground terminals over the frequency range varies between 1 GHz and 50 GHz while maintaining a bandwidth ratio of 50:1. The segmented ultra-wideband antenna system comprises a platform having a circular shape structure configured to affix plurality of antennas using one or more fasteners. The platform has a diameter of 24 inches for affixing the first antenna, the second antenna and the third antenna using fasteners. The plurality of antennas comprises a first antenna, a second antenna and a third antenna. The segmented ultra-wideband antenna system having a bandwidth ratio of 50:1. The segmented ultra-wideband antenna system achieves gain values from 6 dBi to 41 dBi. The segmented ultra-wideband antenna system is portable on ground and weighs less than 50 lbs.

Abstract: A contiguous radiating ring antenna structure suitable for a vehicle is disclosed. The antenna structure comprises a curved shape structure having a plurality of radiating rings, a plurality of sectors, a connecting unit, and a plurality of frequency barriers. The antenna structure has a phase variation of less than 2° degrees over 360° of azimuth coverage and about +/?85° of elevation coverage. The antenna structure has a thickness of less than 0.5 inches. The contiguous radiating ring antenna structure is design for demanding vehicular applications, including missiles, rockets, and aircraft. The contiguous radiating annular ring antenna comprises a beam forming network, which is configured to be incorporated into a printed antenna board for enhancing the vehicular communications.

Abstract: A segmented ultra-wideband antenna system that facilitates communication with aircraft, satellites, ships, and other ground terminals over the frequency range varies between 1 GHz and 50 GHz while maintaining a bandwidth ratio of 50:1. The segmented ultra-wideband antenna system comprises a platform having a circular shape structure configured to affix plurality of antennas using one or more fasteners. The platform has a diameter of 24 inches for affixing the first antenna, the second antenna and the third antenna using fasteners. The plurality of antennas comprises a first antenna, a second antenna and a third antenna. The segmented ultra-wideband antenna system having a bandwidth ratio of 50:1. The segmented ultra-wideband antenna system achieves gain values from 6 dBi to 41 dBi. The segmented ultra-wideband antenna system is portable on ground and weighs less than 50 lbs.

Abstract: The present invention provides a petal reflector antenna that comprises a main reflector having a paraboloid shape and a plurality of identical petals, a feed assembly that includes a horn, a wideband junction, a holder, and a hybrid coupler connected to a diplexer and a multiplexer. The petal reflector antenna further comprises a protective radome cover, a horn, a subreflector, and a support station member for quickly and conveniently set up over a desired ground location. The petal reflector antenna can operate simultaneously in the K, Ka, Ku receive, and Ku transmit frequency bands.

Abstract: A phased array antenna including a plurality of antenna element units mounted to a panel having a first side and a second side. Each antenna unit includes a step aperture integrated radiating (STAIR) antenna element mounted to the first side of the panel and having an outer cylindrical waveguide, a septum polarizer including a plurality of steps and a septum feed structure, and a right hand circularly polarized (RHCP) feed structure electrically coupled to the septum feed structure. Each antenna unit further includes a triplexer module mounted to the second side of the panel and being responsive to a plurality of linearly polarized signals to be transmitted by the STAIR element, where the triplexer module operates to combine the plurality of linearly polarized signals and provide the combined signal to the RHCP feed structure to be converted by the septum polarizer to a circularly polarized signal for transmission.

Abstract: A multiple beam antenna structure. Network components (7, 8) may be integrated into panels (4, 5). Panels (4, 5) may be joined to form a panel architecture (6). Network paths (9) may be formed through the panel architecture (6) at joinder locations (9) of network components (7, 8) integrated into the panels (4, 5). The panel architecture (6) may have a reduced mass and permit increased network density.

Abstract: Methods, systems, and apparatus are disclosed for high power thermal vacuum testing of satellite payloads using pick-up horns. Such pick-up horns can include at least one outer metal wall forming a metal body and at least one interior surface disposed in the metal body, forming at least one chamber in the metal body. The pick-up horn further includes a front metal surface disposed at a front end of the metal body, having at least one opening corresponding to the at least one chamber, and at least one high-power absorbing load disposed within the at least one chamber and in contact with the at least one interior surface. A pick-up horn may further include a serpentine coolant path disposed within the metal body between an outer surface of the at least one outer metal wall and the at least one high-power absorbing load. Related systems and methods are described.

Abstract: Methods, systems, and apparatus are disclosed for high power thermal vacuum testing of satellite payloads using pick-up horns. Such pick-up horns can include at least one outer metal wall forming a metal body and at least one interior surface disposed in the metal body, forming at least one chamber in the metal body. The pick-up horn further includes a front metal surface disposed at a front end of the metal body, having at least one opening corresponding to the at least one chamber, and at least one high-power absorbing load disposed within the at least one chamber and in contact with the at least one interior surface. A pick-up horn may further include a serpentine coolant path disposed within the metal body between an outer surface of the at least one outer metal wall and the at least one high-power absorbing load. Related systems and methods are described.

Abstract: A dual-band feed assembly is configured to be coupled to a satellite repeater payload. The dual-band feed assembly includes a transmit filter assembly comprising a transmit pass-band filter configured to reject frequencies outside of a transmit frequency band and a low-pass and harmonic filter configured to reject receive band frequencies and harmonics of the transmit frequency band. The dual-band feed assembly further includes a receive filter assembly comprising a receive pass-band filter configured to reject frequencies outside of a receive frequency band and a high-pass filter configured to reject transmit band frequencies. A multi-port junction couples the transmit and receive waveguide assemblies to a dual-band horn. The dual-band feed assembly also may include receive and transmit test couplers.

Abstract: A pick-up horn for absorbing radiation emitted by a transmit antenna is provided. The pick-up horn includes at least one outer metal wall forming a metal body and at least one interior surface disposed in the metal body, forming at least one chamber in the metal body. The pick-up horn further includes a front metal surface disposed at a front end of the metal body, having at least one opening corresponding to the at least one chamber, and at least one high-power absorbing load disposed within the at least one chamber and in contact with the at least one interior surface. The pick-up horn may further include a serpentine coolant path disposed within the metal body between an outer surface of the at least one outer metal wall and the at least one high-power absorbing load.

Abstract: Methods, systems, and apparatus are disclosed for high power thermal vacuum testing of satellite payloads using pick-up horns. Such pick-up horns can include at least one outer metal wall forming a metal body and at least one interior surface disposed in the metal body, forming at least one chamber in the metal body. The pick-up horn further includes a front metal surface disposed at a front end of the metal body, having at least one opening corresponding to the at least one chamber, and at least one high-power absorbing load disposed within the at least one chamber and in contact with the at least one interior surface. A pick-up horn may further include a serpentine coolant path disposed within the metal body between an outer surface of the at least one outer metal wall and the at least one high-power absorbing load. Related systems and methods are described.

Abstract: Methods, systems, and apparatus are disclosed for high power thermal vacuum testing of satellite payloads using pick-up horns. Such pick-up horns can include at least one outer metal wall forming a metal body and at least one interior surface disposed in the metal body, forming at least one chamber in the metal body. The pick-up horn further includes a front metal surface disposed at a front end of the metal body, having at least one opening corresponding to the at least one chamber, and at least one high-power absorbing load disposed within the at least one chamber and in contact with the at least one interior surface. A pick-up horn may further include a serpentine coolant path disposed within the metal body between an outer surface of the at least one outer metal wall and the at least one high-power absorbing load. Related systems and methods are described.

Abstract: A method and apparatus forming an efficient and compact waveguide feed with all components for processing signals in multi-frequency band antenna feeds with single/dual linear/circular polarizations with/without tracking. The layout can be realized in a split block configuration using any number of fabrication methods, such as brazing, electroforming, and machining and is most effective when it is realized in a split-block construction, in which the waveguide components are formed in the recesses split about the zero current line. This layout results in a very compact feed, which has excellent electrical characteristics, is mechanically robust, eliminates flange connections between components, and is very cost effective.

Abstract: A pick-up horn for absorbing radiation emitted by a transmit antenna is provided. The pick-up horn includes at least one outer metal wall forming a metal body and at least one interior surface disposed in the metal body, forming at least one chamber in the metal body. The pick-up horn further includes a front metal surface disposed at a front end of the metal body, having at least one opening corresponding to the at least one chamber, and at least one high-power absorbing load disposed within the at least one chamber and in contact with the at least one interior surface. The pick-up horn may further include a serpentine coolant path disposed within the metal body between an outer surface of the at least one outer metal wall and the at least one high-power absorbing load.