Low-noise hybrid superconductor/semiconductor 7.4 GHz receiver downconverter for NASA space applications
Conference
·
OSTI ID:61238
- California Institute of Technology, Pasadena, CA (United States). Jet Propulsion Lab.; and others
A low-noise microwave receiver downconverter utilizing thin-film high-critical-temperature superconducting (HTS) passive circuitry and semiconductor active devices has been developed for use in space. It consists of an HTS preselect filter, a cryogenic low-noise amplifier, a cryogenic mixer, and a cryogenic oscillator with an HTS resonator. The downconverter converts a 200 MHz wide band centered around 7.35 GHz to a band centered around 1.0 GHz. When cooled to 77 K, the downconverter plus cables inside a cryogenic refrigerator produced a noise temperature measured at the refrigerator port of approximately 50 K with conversion gain of 18 dB.
- OSTI ID:
- 61238
- Report Number(s):
- CONF-940142--; ISBN 0-8194-1451-4
- Country of Publication:
- United States
- Language:
- English
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