Title :
Measured performance at 77 K of superconducting microstrip resonators and filters
Author :
Schmidt, Michael S. ; Forse, Roger J. ; Hammond, Robert B. ; Eddy, Michael M. ; Olson, William L.
Author_Institution :
Superconductor Technol., Inc., Santa Barbara, CA, USA
fDate :
9/1/1991 12:00:00 AM
Abstract :
Results on three types of passive microwave devices fabricated and tested using epitaxial thin films of Tl2CaBa2Cu 2O8 grown on LaAlO3 are reported. A microstrip ring resonator with unloaded Q of 2740 at 77 K and 33 GHz is described. A superconducting 4.6 GHz band-reject filter with unloaded Q greater than 15000 when operated at 77 K is reported. In addition, results on a multiple microstrip bandpass filter are presented
Keywords :
Q-factor; band-pass filters; band-stop filters; barium compounds; calcium compounds; high-temperature superconductors; microwave filters; passive filters; resonators; strip line components; superconducting devices; superconducting epitaxial layers; thallium compounds; 33 GHz; 4.6 GHz; 77 K; LaAlO3; Q-factor; Tl2CaBa2Cu2O8; band-reject filter; epitaxial thin films; high temperature superconductors; microstrip resonators; microstrip ring resonator; multiple microstrip bandpass filter; passive microwave devices; Band pass filters; Microstrip resonators; Optical ring resonators; Resonator filters; Superconducting epitaxial layers; Superconducting filters; Superconducting microwave devices; Superconducting thin films; Testing; Thin film devices;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
