Abstract: An antenna structure configured for simultaneous communication over multiple channels or with multiple locations. In certain examples the antenna system includes an antenna, such as a horn antenna, a lens, or a horn-lens combination, for example, and a focal plane array located near the focal point of the antenna. The focal plane array can be made up of a plurality of sub-wavelength elements, and is configured to simultaneously excite and/or receive a plurality of beams, each having an independent pointing angle to communicate with multiple fixed or non-fixed communication terminals in different locations.

Abstract: A collision avoidance system for aircraft. A light fixture assembly includes a housing with a base and a clear dome over the base. The base including an aircraft attachment element that allows for drop-in replacement of original light housings. An aircraft light is within the housing, as well as an ultrasonic sensor. The sensor is tied to a warning indicator configured to issue an alert when the light fixture approaches an obstacle. The installation provides a permanent replacement for wing lights or taillights, whereby the proximity sensors are always on the aircraft, and do not need to be added once landed.

Abstract: Antenna lens structures, and antenna systems including the lens structures. In one example, an antenna lens apparatus includes a shell made of a first material having a first dielectric constant, the shell defining an interior cavity, and a second material disposed within and at least partially filling the cavity, the second material having a second dielectric constant higher than the first dielectric constant. The shell defines a shape of the lens, and the second material may be a powder.

Abstract: An antenna structure configured for simultaneous communication over multiple channels or with multiple locations. In certain examples the antenna system includes an antenna, such as a horn antenna, a lens, or a horn-lens combination, for example, and a focal plane array located near the focal point of the antenna. The focal plane array can be made up of a plurality of sub-wavelength elements, and is configured to simultaneously excite and/or receive a plurality of beams, each having an independent pointing angle to communicate with multiple fixed or non-fixed communication terminals in different locations.

Abstract: A containment system for containing all or part of a radome and an external subassembly that is protected by the radome is disclosed. One embodiment of the containment system comprises a fabric material and an attachment system for attaching the fabric material to the radome and to the radome attachment ring. An increased strength radome for covering the external subassembly is also disclosed.

Abstract: A communications system including an antenna array and electronics assembly that may be mounted on and in a vehicle. The communication system may generally comprise an external subassembly that is mounted on an exterior surface of the vehicle, and an internal subassembly that is located within the vehicle, the external and internal subassemblies being communicatively coupled to one another. The external subassembly may comprise the antenna array as well as mounting equipment and steering actuators to move the antenna array in azimuth, elevation and polarization (for example, to track a satellite or other signal source). The internal subassembly may comprise most of the electronics associated with the communication system.

Abstract: 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.

Abstract: 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.