Title :
A 77 K computer controlled MM wave spectral Josephson detector using microstrip technique, preliminary results
Author :
Daginnus, M. ; Hinken, J.H.
Author_Institution :
Inst. of High-Frequency Eng., Tech. Univ. of Braunschweig, West Germany
Abstract :
Superconducting granular bridges of Y-Ba-Cu-O show the AC Josephson effect. A spectral detector has been devised with a granular bridge as the sensor, which is coupled to a microstrip line. The device has been operated in the millimeter-wave range (Ka-band) in liquid nitrogen at a temperature of 77 K. The DC V(I) characteristics of a granular bridge for a millimeter-wave signal of f/sub 1/=35.5 GHz at various power levels are presented.<>
Keywords :
Josephson effect; barium compounds; high-temperature superconductors; solid-state microwave devices; strip line components; yttrium compounds; 35.5 GHz; 77 K; AC Josephson effect; Ka-band; MM wave spectral Josephson detector; YBaCuO; granular bridge; high-temperature superconductor; microstrip technique; millimeter-wave signal; power levels; Bridges; Detectors; Granular superconductors; Josephson effect; Microstrip; Nitrogen; Sensor phenomena and characterization; Temperature distribution; Temperature sensors; Yttrium barium copper oxide;
Conference_Titel :
Microwave Symposium Digest, 1989., IEEE MTT-S International
Conference_Location :
Long Beach, CA, USA
DOI :
10.1109/MWSYM.1989.38805
