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AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsKoichi Mizuno, Akira Enokihara, Hidetaka Higashino, Kentaro Setsune
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In a small transmission line type high-frequency circuit element that has small loss due to conductor resistance and has a high Q value, an error in the dimension of a pattern, etc. can be corrected to adjust element characteristics. An elliptical shape resonator (12) that is formed of an electric conductor is formed on a substrate (11a), while a pair of input-output terminals (13) are formed on a substrate (11b). Substrate (11a) on which resonator (12) is formed and substrate (11b) on which input-output terminal (13) is formed are located parallel to each other, with a surface on which resonator (12) is formed and a surface on which input-output terminal (13) is formed being opposed. Substrates (11a) and (11b) that are located parallel to each other are relatively moved by a mechanical mechanism that uses a screw and moves slightly. Also, substrate (11a) is rotated by the mechanical mechanism that uses a screw and moves slightly around the center axis of resonator (12) as a rotation axis (18).
A high-frequency circuit element comprising a resonator that is comprised of an electric conductor disposed on a substrate and having a disk shape with smooth outline and two dipole modes orthogonally polarizing without degeneration as resonant modes, and an input-output terminal that is coupled to an outer periphery of said resonator, wherein a second dielectric on which a second resonator is disposed is located in a position opposed to said resonator, further comprising a mechanism that changes the relative positions of the resonator and the second dielectric.
Dependencies are inferred from the claim text.