Title :
Full-wave characterization of high-T/sub c/ superconducting transmission lines
Author :
Lee, L.H. ; Ali, S.M. ; Lyons, W.G.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., MIT, Cambridge, MA, USA
fDate :
6/1/1992 12:00:00 AM
Abstract :
A full-wave numerical analysis is applied to accurately characterize superconducting transmission lines embedded in a layered dielectric medium. A volume integral equation formulation is developed by using a spectral domain dyadic Green´s function for stratified media. Galerkin´s method with rooftop basis functions for the electric field distribution inside the superconductor is then employed to solve the complex propagation constant. The thickness of the superconducting film is arbitrary in this analysis, and the formulation rigorously accounts for the anisotropy of the superconducting film. The propagation characteristics of a superconducting microstrip transmission line with a thin dielectric buffer layer are investigated. A superconducting stripline configuration with an air gap is also studied.<>
Keywords :
high-temperature superconductors; strip lines; superconducting devices; transmission line theory; Galerkin´s method; air gap; anisotropy; characterization; complex propagation constant; electric field distribution; embedded transmission lines; full-wave numerical analysis; high temperature superconductors; layered dielectric medium; propagation characteristics; spectral domain dyadic Green´s function; stratified media; superconducting microstrip; superconducting stripline; superconducting transmission lines; thin dielectric buffer layer; volume integral equation; Dielectrics; Green´s function methods; Integral equations; Moment methods; Nonhomogeneous media; Numerical analysis; Propagation constant; Superconducting epitaxial layers; Superconducting films; Superconducting transmission lines;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
