Title :
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
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;
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.1990.115515
