Title :
Parametric mixing in a nonlinear TlCaBaCuO thin film resonator at microwave frequencies
Author :
Thompson, J.H. ; Beyer, J.B. ; Nordman, J.E.
Author_Institution :
Dept. of Electr. Eng., Wisconsin Univ., Madison, WI, USA
fDate :
3/1/1991 12:00:00 AM
Abstract :
The RF nonlinear behavior of a TlCaBaCuO thin film at 77 K is investigated. The film is patterned to form a disk with small annular perforations along the outer edge, and a dielectric resonator is used to couple to the structure. Thinning of the film with a bromine etch greatly enhances the reactive nonlinearity of the resonator structure. Scalar network analyzer measurements revealed sufficient nonlinearity to achieve parametric amplification at 7.2 GHz. The nonlinearity is tentatively attributed to RF-induced flux in the superconducting film
Keywords :
barium compounds; calcium compounds; high-temperature superconductors; mixers (circuits); resonators; solid-state microwave devices; superconducting thin films; thallium compounds; 7.2 GHz; 77 K; RF nonlinear behavior; RF-induced flux; TlCaBaCuO thin film resonator; annular perforations; dielectric resonator; disk resonator; high temperature superconductors; microwave frequencies; nonlinear resonators; parametric amplification; parametric mixing; reactive nonlinearity; superconducting film; Dielectric measurements; Dielectric thin films; High temperature superconductors; Inductance; Microwave frequencies; Resonance; Superconducting films; Superconducting microwave devices; Surface resistance; Transistors;
Journal_Title :
Magnetics, IEEE Transactions on
