Patent ID: 8026854

Claim:
A stripline-type composite right/left-handed transmission line comprising: a plate-shaped substrate comprising a dielectric medium, which is either partially or wholly composed of a material with variable permittivity; a plurality of conductor patterns, which are disposed in an intermediate plane of said substrate, and which are periodically arranged in a fixed direction; ground conductors, which are disposed on the front surface and rear surface of said substrate, and which are disposed by being galvanically isolated from one another; and permittivity controlling means for changing and controlling the permittivity of said variable permittivity material by applying a direct current voltage between said ground conductors, wherein a conductor pattern of said plurality of conductor patterns is disposed by being galvanically isolated from another conductor pattern of said plurality of conductor patterns and said round conductors, and said stripline-type composite right/left-handed transmission line is capable of propagating an electromagnetic wave in a right-handed region and a left-handed region.