Title :
A compact EHF/SHF dual frequency antenna
Author :
Chen, M.H. ; Tung, T.X. ; Yodokawa, T.
Author_Institution :
TRW, Redondo Beach, CA, USA
Abstract :
The design and development of a compact EHF/SHF dual-frequency antenna capable of meeting very stringent electrical and mechanical requirements is described. This antenna can serve as a ground terminal antenna for next-generation EHF/SHF military satellite communication systems. These systems usually have severe spatial constraints that require novel approaches in order to fulfil the electrical performance requirement in the limited space available for the antenna subsystem. The proposed design is an effort to solve the spatial problem and meet the electrical performance requirements. It consists of a 5.75-in reflector with a dual-frequency vertex backfire feed and a compact diplexer. The antenna subsystem is compact in size and capable of operating in circularly polarized mode in two frequency bands. It is compatible with the severe spatial constraint, and is optimized in terms of electrical performance, satisfying ground terminal requirements.<>
Keywords :
microwave antennas; military equipment; reflector antennas; satellite antennas; 20.7 GHz; 44.5 GHz; antenna subsystem; circularly polarized mode; compact EHF/SHF dual frequency antenna; compact diplexer; design; dual-frequency vertex backfire; electrical performance; ground terminal antenna; microwave antenna; military satellite communication systems; reflector; Antenna feeds; Azimuth; Constraint optimization; Frequency; K-band; Military satellites; Packaging; Polarization; Reflector antennas; Satellite antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1990. AP-S. Merging Technologies for the 90's. Digest.
Conference_Location :
Dallas, TX, USA
DOI :
10.1109/APS.1990.115407
