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Article: Antenna-coupled thermal detectors of mm-wave radiation.
- Article from:
- Microwave Journal
- Article date:
- January 1, 1993
- Author:
CopyrightCOPYRIGHT 1993 Horizon House Publications, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Introduction
Millimeter-wavelengths, corresponding to frequencies between 30 and 300 GHz, are of interest in a number of applications ranging from astronomy to automotive sensing. In astronomy, the infrared astronomy satellite (IRAS) has studied interstellar medium emissions at mm- and sub-mm-wavelengths. These wavelengths also may be of interest for all-weather radar imaging systems in aircraft. Conventional microwave radar provides insufficient resolution for such applications, while optical systems have visibility restrictions in fog or clouds. A mm-wave imaging system would penetrate fog or clouds, while providing greater resolution than conventional radar. Of ...