An eight channel co-boresighted mm-wave receiver system
Abstract
A mm-wave sensor design with eight coboresighted beams spanning two octaves of continuous frequencies is described. The sensor system consists of a high/low gain Cassegrain antenna, a quasi-optical multiplexer, and cooled receivers operating in a frequency range of 30 to 110 GHz in eight 10 GHz wide channels. The Cassegrain antenna switches between high and low gain as the subreflector translates in and out of the beam. Quasi-optical focusing highpass filters separate the wideband bean into eight channels. All bands are observed simultaneously and adjacent bands are detected in orthogonal linear polarization.
- Publication:
-
Microwave Journal
- Pub Date:
- October 1992
- Bibcode:
- 1992MiJo...35...72M
- Keywords:
-
- Antenna Arrays;
- Antenna Design;
- Microwave Antennas;
- Millimeter Waves;
- Receivers;
- Boresights;
- Cassegrain Antennas;
- Directional Antennas;
- Electromagnetic Noise;
- Extremely High Frequencies;
- Reflector Antennas;
- Communications and Radar