Patent ID: 6014575
Filing Date: 2000-01-11
Classification: H01P,Y10S

Abstract:
A superconducting transmission delay line phase shifter comprising:a layer comprised of a low dielectric loss material, said layer comprising first, second and third adjacent sections, said second section being positioned between said first and third sections, each of said sections having a respective width which is equal to a width of said layer, lengths of said sections summing to define a length of said layer;a ferroelectric insert comprised of a ferroelectric material, said ferroelectric material having a composition which is different from a composition of said low dielectric loss material, said ferroelectric insert being disposed only in said second section, said ferroelectric insert extending along an entire said length of said second section, said ferroelectric insert having a width less than said width of said second section;a single thin film of a conductor having a high conductivity, said conductive thin film extending across an entirety of lower surfaces of said first, second and third sections; anda superconducting signal transmission line, comprising: a signal input section; a phase shifting section connected to said signal input section, a width of said phase shifting section being less than said width of said ferroelectric insert; and a signal output section connected to said phase shifting section,wherein said signal input section is in contact with said first section,wherein said signal output section is in contact with said third section, andwherein said phase shifting section is in contact with said ferroelectric insert;wherein said superconducting signal transmission line is comprised of V.sub.3 Si.