1. MICROWAVE CHARACTERIZATION OF HIGH-TEMPERATURE SUPERCONDUCTING THIN FILMS USING STRIPLINE RESONATORS.
- Author
-
MacDonald, Alan 0., Long, Stuart A., Williams, Jeffery T., R. Jackson, David, Lichtenberg, Christopher L., Davis, Matthew L., Wosik, Jaroslaw L., and Wolfe, John C.
- Subjects
MICROWAVES ,THIN films ,HIGH temperatures ,STRIP transmission lines ,RESONATORS - Abstract
A method was derived for the extraction of the surface resistivity (R
s ) of high Tc superconducting (HTS) thin films at microwave frequencies using a stripline resonator circuit. Surface resistivity values were calculated by measuring the difference in Q-values of a stripline resonator configuration when an HTS thin film was substituted for one of the metallic ground planes. Cryogenic tests were completed for several stripline resonator structures, yielding accurate predictions of the HTS thin-film performance at frequencies between 3 and 26 GHz (in harmonics of approximately 3 GHz). These results were then used to illustrate the dependence of HTS surface resistivity on frequency and temperature in the microwave frequency band. [ABSTRACT FROM AUTHOR]- Published
- 1990
- Full Text
- View/download PDF