Integral FMCW radar incorporating an HTSC delay line with user-transparent cryogenic cooling and packaging

A self-contained frequency-modulation continuous-wave (FMCW) radar incorporating a compact 2.2-ns broadband superconducting delay line operating at 80 K has been developed. The authors note that this is the first demonstration of an integral microwave system utilizing high-temperature superconductor...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 1993-03, Vol.3 (1), p.2820-2823
Main Authors: Kapolnek, D.J., Aidnik, D.L., Hey-Shipton, G., James, T.W., Fenzi, N.O., Skoglund, D.L., Nilsson, B.J.L.
Format: Article
Language:English
Subjects:
Applied sciences
Cryogenics
Delay lines
Electromagnetic heating
Electronic packaging thermal management
Electronics cooling
Exact sciences and technology
Microwave circuits
Radar
Radiolocalization and radionavigation
Superconducting materials
Superconducting microwave devices
Superconducting transition temperature
Telecommunications
Telecommunications and information theory
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Summary:A self-contained frequency-modulation continuous-wave (FMCW) radar incorporating a compact 2.2-ns broadband superconducting delay line operating at 80 K has been developed. The authors note that this is the first demonstration of an integral microwave system utilizing high-temperature superconductor (HTSC) circuitry incorporating a closed-cycle cooler and a long-life permanently sealed dewar. They discuss development efforts focused on high-frequency packaging techniques compatible with the stringent thermal and electrical performance requirements of HTSC microwave circuitry. They also review the prospects for development of low-cost and reliable closed-cycle cryogenic coolers in the 2-10-W size range.< >
ISSN:1051-8223
1558-2515
DOI:10.1109/77.233495