发明名称 Resonator and dielectric filter
摘要 One pair of resonant electrodes is formed in a loop shape or a spiral shape in a substrate stacking direction symmetrically to each other. This allows a longitudinal space in substrate to be reduced. A first capacitor having an electrode connected to the grounding conductor layer, an electrode connected to an open-end side of the resonant electrode, and a dielectric layer is provided. A second capacitor having an electrode connected to the grounding conductor layer, an electrode connected to an open-end side of the resonant electrode, and a dielectric layer is also provided. This results in having a desired characteristic even if a length of the resonant electrode is short. <IMAGE>
申请公布号 EP1521329(A1) 申请公布日期 2005.04.06
申请号 EP20040021358 申请日期 2004.09.08
申请人 SONY CORPORATION 发明人 MUTO, AKIRA
分类号 H01P1/203;H01P1/205;H01P7/08 主分类号 H01P1/203
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