A compact EHF/SHF dual-band reflector antenna

Author

Chang, Yueh-Chi

Author_Institution

Bell Aerosp. Textron, New York, NY, USA

fYear

1989

Firstpage

1602

Abstract

A new 5.5-in. diameter EHF/SHF dual-band reflector antenna was developed as an earth terminal for satellite communication. With minimal changes from an old design, this new design demonstrates significantly higher antenna efficiencies at both hands. The original design was a 5.5-in. diameter parabolic main reflector with a 1.87-in. focal length. One of the criteria for the new design is that the main reflector must stay the same. The single-shaped configuration with a parabolic main reflector and shaped subreflector turned out to be an excellent choice for this case. A test model was built and tested. Antenna gains of 27.0 dB at 20.7 GHz and 33.3 dB at 44.5 GHz, which are at least 0.5 dB higher than the antenna gain requirements, were obtained.<>

Keywords

microwave antennas; satellite antennas; satellite ground stations; 20.7 GHz; 27 dB; 33.3 dB; 44.5 GHz; 5.5 in; EHF; SHF; antenna efficiencies; antenna gain; diameter; dual-band reflector antenna; earth terminal; focal length; parabolic main reflector; satellite communication; shaped subreflector; Aerospace testing; Antenna measurements; Coaxial components; Dual band; Feeds; Inductors; Reflector antennas; Satellite antennas; Satellite communication; Satellite ground stations;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1989. AP-S. Digest

Conference_Location

San Jose, CA, USA

Type

conf

DOI

10.1109/APS.1989.135032

Filename

135032