Title :
Broad band microwave spectroscopy of cooled monolithic circuits
Author :
Olsson, H.K. ; Edstam, J.
Author_Institution :
Dept. of Phys., Chalmers Univ. of Technol., Goteborg, Sweden
fDate :
11/1/1993 12:00:00 AM
Abstract :
The use of a high-Tc Josephson junction for broadband spectrum analysis is discussed. A YBCO grain boundary junction was coupled to a YBCO/SiO/Pb microstrip resonator and spectra were taken in the frequency range 0-300 GHz and over temperatures from 4-70 K. Values of microstrip attenuation (>0.003 dB/μm) and phase velocity (~0.17 c0, where c0 is the speed of light in vacuum) were extracted. In particular, a signal dispersion of less than 3% over the range 80-220 GHz was observed
Keywords :
barium compounds; high-temperature superconductors; lead; microstrip components; microwave integrated circuits; microwave measurement; resonators; silicon compounds; spectral analysis; superconducting integrated circuits; superconducting microwave devices; yttrium compounds; 0 to 300 GHz; 4 to 70 K; YBCO/SiO/Pb microstrip resonator; YBa2Cu3O7-SiO-Pb; broadband spectrum analysis; cooled monolithic circuits; grain boundary junction; high-Tc Josephson junction; microstrip attenuation; phase velocity; signal dispersion; Coupling circuits; Frequency; Grain boundaries; Josephson junctions; Microstrip resonators; Microwave circuits; Optical coupling; Spectroscopy; Temperature distribution; Yttrium barium copper oxide;
Journal_Title :
Magnetics, IEEE Transactions on
