Custom Microwave Inc.

Lockheed Martin Corporation

Northrop Grumman Systems Corporation

Clency Lee-Yow

Philip Elwood Venezia

Sudhakar K Rao

Jonathan Raymond Scupin

Mark W MacGregor

Richard Malcolm Dart

Maxim Vladimirovich Ignatenko

Suzanna Janet LaMar

Rodolfo Lozano, Jr

David V Gardner

Joseph T Durcanin

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.

Segmented ultra-wideband antenna system and method of operating the same

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.

Quad band petal reflector antenna

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.

L-band array element with integrated triplexer for GPS payloads

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.

Generic pick-up horn for high power thermal vacuum testing of satellite payloads at multiple frequency bands and at multiple polarizations

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.

Pick-up horn for high power thermal vacuum testing of spacecraft payloads

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.

Growing community of inventors

Longmont, CO, United States of America

Clency Lee-Yow