Title :
Comparison of high-temperature-superconductor and metal-based resonators
Author :
Namordi, Mooshi R. ; Mogro-Campero, Antonio ; Turner, Larry G. ; Hogue, David W.
Author_Institution :
GE Electron. Lab., Syracuse, NY, USA
fDate :
9/1/1991 12:00:00 AM
Abstract :
A 50-Ω coplanar waveguide (CPW) resonator designed for a fundamental frequency of about 4.75 GHz was fabricated on LaAlO3 . Two versions were fabricated: the first using 1.9-μm-thick gold and the second using 0.6-μm-thick YBa2Cu3O 7. The devices were identically packaged and tested at 77 K. It was found that the high-temperature superconductor (HTS) resonator had a surface resistance, Rs, about six to nine times lower than the Au one. At 45 K, the Rs of the HTS resonator decreases by another factor of 4 compared with its 77 K value. Device characteristics for the HTS resonator are presented
Keywords :
barium compounds; high-temperature superconductors; resonators; superconducting devices; superconducting thin films; waveguide components; yttrium compounds; 0.6 micron; 1.9 micron; 4.75 GHz; 45 K; 50 ohm; 77 K; Au resonators; LaAlO3 substrate; YBa2Cu3O7 resonators; coplanar waveguide; high temperature superconductors CPW resonators; surface resistance; Coplanar waveguides; Costs; Gold; High temperature superconductors; Inorganic materials; Packaging; Superconducting transition temperature; Surface resistance; Testing; Yttrium barium copper oxide;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
