A broadband DF system at millimeter wavelengths

Author

Liu, F. ; Sun, W. ; Chen, M. ; Chandler, C. ; Min, X.

Author_Institution

MM-Wave Technol. Inc., Walnut, CA, USA

fYear

1990

fDate

7-11 May 1990

Firstpage

1938

Abstract

A novel design for a direction-finding (DF) system covering the frequency bands from 18 to 110 GHz is presented. The detectable polarizations of incoming waves in the specified frequency range consist of horizontal, vertical, left slant, right slant, right-hand circular, and left-hand circular polarizations. The detection of the various polarizations is based on the use of symmetrical orthogonal mode transducers which are designed to meet full waveguide bandwidths. The use of a flat splash reflector makes it possible to build the system without a rotary joint.<>

Keywords

electromagnetic wave polarisation; radio direction-finding; 18 to 110 GHz; EHF; SHF; broadband DF system; direction-finding system; flat splash reflector; horizontal polarization; left slant polarization; left-hand circular polarizations; millimeter wavelengths; right slant polarization; right-hand circular polarization; vertical polarization; Bandwidth; Control systems; Feeds; Frequency; Millimeter wave technology; Monitoring; Polarization; Sun; Transducers; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1990. AP-S. Merging Technologies for the 90's. Digest.

Conference_Location

Dallas, TX, USA

Type

conf

DOI

10.1109/APS.1990.115515

Filename

115515