Superconducting microstrip resonator with yttrium iron garnet single crystals

Author

Fukusako, Takeshi ; Tsutsumi, Makoto

Author_Institution

Dept. of Electron. & Inf. Sci., Kyoto Inst. of Technol., Japan

Volume

45

Issue

11

fYear

1997

fDate

11/1/1997 12:00:00 AM

Firstpage

2013

Lastpage

2017

Abstract

A magnetically tunable microstrip superconducting resonator using an yttrium-iron-garnet (YIG) single crystal was demonstrated experimentally. Tunability of 200 MHz at a center frequency of 5.3 GHz was observed, and a quality factor of 965 with minimum insertion loss of 19.5 dB was measured for a half-wavelength microstrip line consisting of a YIG-YBCO-MgO composite structure. The dispersion relation of the resonator was analyzed using the spectral-domain method and discussed with experimental results on the mixed states of TEM and magnetostatic-wave modes. Power dependence of the characteristics is also discussed

Keywords

Q-factor; barium compounds; dispersion (wave); garnets; high-temperature superconductors; microstrip resonators; spectral-domain analysis; superconducting microwave devices; superconducting resonators; yttrium compounds; 19.5 dB; 200 MHz; 5.3 GHz; MgO; YFe5O12-YBaCuO-MgO; YIG-YBCO-MgO composite structure; YIG-YBaCuO-MgO; center frequency; dispersion relation; half-wavelength microstrip line; insertion loss; magnetically tunable resonators; magnetostatic-wave modes; mixed states; quality factor; spectral-domain method; superconducting microstrip resonator; Frequency measurement; Garnets; Insertion loss; Iron; Loss measurement; Magnetostatics; Microstrip resonators; Q factor; Superconducting magnets; Yttrium;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.644217

Filename

644217