Low-noise hybrid superconductor/semiconductor 7.4-GHz receiver downconverter for NASA space applications

Hamid H. S. Javadi; Jeff B. Barner; Javier J. Bautista; Kul B. Bhasin; J. G. Bowen; Wilbert Chew; Chris M. Chorey; Marc C. Foote; B. H. Fujiwara; A. J. Guern; Brian D. Hunt; Regis F. Leonard; Gerry G. Ortiz; Daniel L. Rascoe; Robert R. Romanofsky; Richard P. Vasquez; Paul D. Wamhof

doi:10.1117/12.166145

4 January 1994 Low-noise hybrid superconductor/semiconductor 7.4-GHz receiver downconverter for NASA space applications

Hamid H. S. Javadi, Jeff B. Barner, Javier J. Bautista, Kul B. Bhasin, J. G. Bowen, Wilbert Chew, Chris M. Chorey, Marc C. Foote, B. H. Fujiwara, A. J. Guern, Brian D. Hunt, Regis F. Leonard, Gerry G. Ortiz, Daniel L. Rascoe, Robert R. Romanofsky, Richard P. Vasquez, Paul D. Wamhof

Author Affiliations +

Proceedings Volume 2156, High Tc Microwave Superconductors and Applications; (1994) https://doi.org/10.1117/12.166145
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

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 pre-select 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.

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Hamid H. S. Javadi, Jeff B. Barner, Javier J. Bautista, Kul B. Bhasin, J. G. Bowen, Wilbert Chew, Chris M. Chorey, Marc C. Foote, B. H. Fujiwara, A. J. Guern, Brian D. Hunt, Regis F. Leonard, Gerry G. Ortiz, Daniel L. Rascoe, Robert R. Romanofsky, Richard P. Vasquez, and Paul D. Wamhof "Low-noise hybrid superconductor/semiconductor 7.4-GHz receiver downconverter for NASA space applications", Proc. SPIE 2156, High Tc Microwave Superconductors and Applications, (4 January 1994); https://doi.org/10.1117/12.166145

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