Title :
A practical microwave detection system using a high-impedance microbridge and a miniature refrigerator
Author :
Takai, M. ; Niki, K. ; Ikemachi, T. ; Yoshikawa, S. ; Yoshisato, Y. ; Nakano, S.
Author_Institution :
Sanyo Electric Co. Ltd., Osaka, Japan
fDate :
3/1/1993 12:00:00 AM
Abstract :
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.<>
Keywords :
barium compounds; bismuth compounds; composite superconductors; high-temperature superconductors; microwave detectors; superconducting junction devices; superconducting microwave devices; yttrium compounds; 53 K; HTSC; I-V response; Josephson-type microwave detector; Stirling refrigerator; YBaCuO:B/sub 2/O/sub 3/ composite; enhanced mode detection; granular superconductor; high-impedance microbridge; microwave detection system; miniature refrigerator; responsivity; video detection system; Ceramics; Conductivity; Detectors; Doping; Granular superconductors; Josephson junctions; Powders; Refrigeration; Superconducting microwave devices; Yttrium barium copper oxide;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
