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

Volume

39

Issue

9

fYear

1991

fDate

9/1/1991 12:00:00 AM

Firstpage

1475

Lastpage

1479

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;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.83820

Filename

83820