| 摘要 |
PROBLEM TO BE SOLVED: To provide a composite resonator allowing two resonance frequencies thereof to be set somewhat optionally. SOLUTION: The composite resonator includes: a ground electrode 21 arranged on the lower surface of a laminate constituted by laminating a plurality of dielectric layers 11; and a composite resonance electrode 26 that is arranged on the upper surface or inside of the laminate, that is composed of a base part 27 of which the one end is grounded and a plurality of band-like projection parts 28a, 28b of which the one-ends are each connected to the other end of the base part 27 and which are arranged in parallel with each other, that functions as a resonator in which both of the base part 27 and the projection parts 28a, 28b are resonated by a first frequency, and that functions as a resonator in which the projection parts 28a, 28b are resonated by a second frequency higher than the first frequency. Two resonance frequencies is allowed to be set somewhat optionally are used. COPYRIGHT: (C)2009,JPO&INPIT
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