Patent ID: 6954118

Claim:
A phase shifter comprising: a substrate; a tunable dielectric film having a dielectric constant between 70 to 600, a tuning range of 20 to 60%, and a loss tangent between 0.008 to 0.03 at K and Ka bands, the tunable dielectric film being positioned on a surface of the substrate; a coplanar waveguide positioned on a surface of the tunable dielectric film opposite the substrate; an input for coupling a radio frequency signal to the conductive strip; an output for receiving the radio frequency signal from the conductive strip; a connection for applying a control voltage to the tunable dielectric film, wherein the coplanar waveguide comprises: a first electrode position adjacent a first side of said conductive strip to provide a first gap between the first electrode and the conductive strip; and a second electrode position adjacent a second side of said conductive strip to provide a second gap between the second electrode and the conductive strip; and a conductive dome electrically connected between the first and second electrodes.