摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.