Aerosat Corporation

Astronics Aerosat Corporation

Michael J Barrett

Richard E Clymer

Richard B Anderson

Frank J Blanda

Matthew A Flannery

Robert Krivicich

John Sabat, Jr

A communication system including a plurality of horn antennas, a waveguide feed network, and a converter unit coupled to the plurality of horn antennas is disclosed. The waveguide feed network is coupled to each horn antenna, splits an information signal into a first component signal having a first polarization and a second component signal having a second polarization and provides a first summed component signal at a first feed port and a second summed component signal at a second feed port. The converter unit receives the first summed component signal and the second summed component signal and compensates for polarization skew between the antenna array and a source.

Communication system with broadband antenna

A communication system including an antenna array with feed network coupled to communication electronics. In one example, a communication subsystem comprises a plurality of antennas each adapted to receive an information signal and a plurality of orthomode transducers coupled to corresponding ones of the plurality of antennas, each OMT is adapted to provide at a first component signal having a first polarization and a second component signal having a second polarization. The communication subsystem also comprises a feed network that receives the first component signal and the second component signal from each orthomode transducer and provides a first summed component signal at a first feed port and a second summed component signal at a second feed port, and a phase correction device coupled to the first and second feed ports and adapted to phase match the first summed component signal with the second summed component signal.

A communication system and methodology for providing a signal of interest to at least one movable platform, for possible use by passengers associated with the movable platform, from an information source, where the movable platform is not within a signal coverage area of the information source. The method includes transmitting an information signal with a transmitter located at the information source, receiving the information with a first transmitter/receiver unit located on a first movable platform within the signal coverage of the information source, and re-transmitting the information signal with the transmitter/receiver unit to a receiver located on a second movable platform that is not within the signal coverage area of the information source. The method may further include repeating the steps of receiving and re-transmitting the information signal with at least one additional transmitter/receiver unit, to provide the information signal between the first movable platform and the second movable platform.

Low-height, low-cost, high-gain antenna and system for mobile platforms

A system that provides information to a second passenger vehicle, to create an information network between the second passenger vehicle and an information source, the system including a first transmitter/receiver unit disposed on a first passenger vehicle and adapted to receive an information signal that includes the information from the information source, and to transmit the information signal, a receiver located on the second passenger vehicle, the receiver being adapted to receive the information signal, and adapted to provide at least some of the information for access by a passenger associated with the second passenger vehicle, and a second transmitter/receiver unit that receives the information signal and transmits the information signal, to provide the information signal between the first transmitter/receiver unit and the receiver.

Method and apparatus for providing a signal to passengers of a passenger vehicle

A leaky waveguide antenna array that receives and/or transmits electromagnetic signals includes a plurality of radiation waveguides disposed in parallel to each other on a surface plane to form the antenna array. A feed waveguide is located below the surface plane and provides an electromagnetic signal to the plurality of radiation waveguides and/or receives a plurality of electromagnetic signals from the plurality of radiation waveguides and provides a composite electromagnetic signal at an output of the feed waveguide. Each of the plurality of radiation waveguides has a waveguide axis and includes a plurality of apertures arranged in a direction of the waveguide axis. The feed waveguide includes a first section of waveguide having a first end connected to an input/output port. The first section of waveguide has a height substantially the same as the height of each of the plurality of radiation waveguides and the first section of waveguide has a second end coupled to a first junction point. The first junction point transitions from the first section of waveguide to a second section of waveguide and a third section of waveguide that each have a height that is substantially half of the height of the first section of waveguide. The second section of waveguide transitions with an upward sloping ramp to the substantially half height of the first section of waveguide. The third section of waveguide transitions with a downward sloping ramp to the substantially half height of the first section of waveguide.

A leaky waveguide antenna array that receives and/or transmits electromagnetic signals includes a plurality of radiation waveguides disposed in parallel to each other on a surface plane to form the antenna array. A feed waveguide is located below the surface plane and provides an electromagnetic signal to the plurality of radiation waveguides and/or receives a plurality of electromagnetic signals from the plurality of radiation waveguides and provides a composite electromagnetic signal at an output of the feed waveguide. Each of the plurality of radiation waveguides has a waveguide axis and includes a plurality of apertures arranged in a direction of the waveguide axis. The feed waveguide includes a first section of waveguide having a first end connected to an input/output port. The first section of waveguide has a height substantially the same as the height of each of the plurality of radiation waveguides and the first section of waveguide has a second end coupled to a first junction point. The first junction point transitions from the first section of waveguide to a second section of waveguide and a third section of waveguide that each have a height that is substantially half of the height of the first section of waveguide. The second section of waveguide transitions with an upward sloping ramp to the substantially half height of the first section of waveguide. The third section of waveguide transitions with a downward sloping ramp to the substantially half height of the first section of waveguide. The third section of waveguide is substantially a mirror image of the second section of waveguide. The feed waveguide also includes a septum connected to vertical walls of the first, second and third sections of waveguide which aids in the transition from the height of the first section of the waveguide to the height of the second section and the third section of waveguide. Each of the second section of waveguide and the third section of waveguide are coupled to a corresponding first signal port and second signal port of the feed waveguide. Each of the first signal port and the second signal port are coupled to a corresponding one of the plurality of radiation waveguides.

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Temple, NH, United States of America

Michael J Barrett