Conductor-backed coplanar waveguide resonators of YBa/sub 2/Cu/sub 3/O/sub 7- delta / on LaAlO/sub 3/

Author

Miranda, Félix A. ; Bhasin, Kul B. ; Kong, Keon-Shik ; Itoh, Tatsuo ; Stan, Mark A.

Author_Institution

NASA Lewis Res. Center, Cleveland, OH, USA

Volume

2

Issue

7

fYear

1992

fDate

7/1/1992 12:00:00 AM

Firstpage

287

Lastpage

288

Abstract

Conductor-backed coplanar waveguide (CBCPW) resonators operating at 10.8 GHz have been fabricated from laser-ablated and off-axis magnetron-sputtered YBa/sub 2/Cu/sub 3/O/sub 7- delta / (YBCO) high-temperature superconducting (HTS) thin films on LaAlO/sub 3/. These resonators were tested in the temperature range from 14 to 92 K. The unloaded quality factor (Q/sub 0/) at 77 K of the HTS CBCPW resonators was three to four times that of a similar gold (Au) resonator. To the author´s knowledge, these results represent the first reported measurements of HTS-based CBCPW resonators.<>

Keywords

Q-factor; barium compounds; high-temperature superconductors; resonators; solid-state microwave devices; strip line components; superconducting devices; superconducting thin films; yttrium compounds; 10.8 GHz; 14 to 92 K; LaAlO/sub 3/; SHF; YBa/sub 2/Cu/sub 3/O/sub 7- delta /-LaAlO/sub 3/; conductor-backed CPW resonators; coplanar waveguide resonators; high-T/sub c/ thin films; laser ablated film; off-axis magnetron sputtered film; unloaded quality factor; Coplanar waveguides; Gold; High temperature superconductors; Q factor; Superconducting magnets; Superconducting thin films; Temperature distribution; Testing; Waveguide lasers; Yttrium barium copper oxide;

fLanguage

English

Journal_Title

Microwave and Guided Wave Letters, IEEE

Publisher

ieee

ISSN

1051-8207

Type

jour

DOI

10.1109/75.143397

Filename

143397