Title :
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
fDate :
7/1/1992 12:00:00 AM
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;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
