A practical microwave detection system using a high-impedance microbridge and a miniature refrigerator

The authors have developed a high-impedance Josephson-type microwave detector and a practical microwave video detection system using a small Stirling refrigerator. The detector was fabricated from a newly developed YBCO-BiO composite superconductor prepared by doping YBCO with Bi/sub 2/O/sub 3/. The...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 1993-03, Vol.3 (1), p.2156-2159
Main Authors: Takai, M., Niki, K., Ikemachi, T., Yoshikawa, S., Yoshisato, Y., Nakano, S.
Format: Article
Language:English
Subjects:
Applied sciences
Ceramics
Circuit properties
Conductivity
Detectors
Doping
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Granular superconductors
Josephson junctions
Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits
Powders
Refrigeration
Superconducting microwave devices
Yttrium barium copper oxide
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Summary:The authors have developed a high-impedance Josephson-type microwave detector and a practical microwave video detection system using a small Stirling refrigerator. The detector was fabricated from a newly developed YBCO-BiO composite superconductor prepared by doping YBCO with Bi/sub 2/O/sub 3/. The I-V response of the detector showed enhanced mode detection under microwave irradiation. A measured responsivity of more than 180 V/W was obtained at 58 K.< >
ISSN:1051-8223
1558-2515
DOI:10.1109/77.233929