DocumentCode
934993
Title
Cryogenic All Solid-State Millimeter-Wave Receivers for Airborne Radiometry
Author
Vowinkel, Bernd ; Gruener, Konrad ; Reinert, Werner
Volume
31
Issue
12
fYear
1983
Firstpage
996
Lastpage
1001
Abstract
Cryogenic receiver modules for 90 and 140 GHz have been developed that are part of an airborne imaging system. They consist of Schottky-barrier mixers followed by GaAs-FET IF amplifiers. The DSB receiver noise temperatures are 210 K for the 90-GW and 250 K for the 140-GHz system. The instantaneous bandwidth is 2.5 GHz for both front ends. Results of some flight tests are presented.
Keywords
Attenuation; Bandwidth; Cryogenics; Diodes; High-resolution imaging; Image resolution; Microwave radiometry; Receiving antennas; Solid state circuits; Temperature;
fLanguage
English
Journal_Title
Microwave Theory and Techniques, IEEE Transactions on
Publisher
ieee
ISSN
0018-9480
Type
jour
DOI
10.1109/TMTT.1983.1131651
Filename
1131651
Link To Document