Patent ID: 7583168

Claim:
A resonator, comprising: a substrate formed from a dielectric or a semiconductor; an input line, formed on the substrate, configured to receive a signal inputted into the input line; a resonant line, formed on the substrate, coupled to said input line and configured to resonate with the signal inputted into said input line; an output line, formed on the substrate, coupled to said resonant line and configured to receive an output of said resonant line; a ground formed on the substrate; at least one counter electrode arranged on a same side of the substrate as the resonant line so as to overlap said resonant line with a constant space in between in a direction perpendicular to said substrate, and configured to form a reactance between the resonant line and the at least one counter electrode; at least one supporting member configured to support the at least one counter electrode on said substrate; and at least one conductor connecting the at least one counter electrode to the ground.