| 摘要 |
Provided is a composite resonator wherein two resonance frequencies can be set discretionarily to a certain extent. The composite resonator is provided with a grounding electrode (21) arranged on a lower surface of a laminated body wherein a plurality of dielectric layers (11) are laminated, and a composite resonant electrode (26) arranged on an upper surface or inside of the laminated body. The composite resonant electrode (26) is composed of a base section (27) and a plurality of strip-like protruding sections (28a, 28b). One end of the base section (27) is grounded. One end of each of the protruding sections (28a, 28b) is connected to the other end of the base section (27), and the protruding sections are arranged in parallel. A body wherein the base section (27) and the protruding sections (28a, 28b) are combined functions, as a whole, as a resonator which resonates at a first frequency, and the protruding sections (28a, 28b) function as a resonator which resonates at a second frequency higher than the first frequency.
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