Resonator and filter
AssigneeSoshin Electric Co., Ltd.
InventorKeisuke OGAWA
Life of this patent
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Abstract
Provided are a resonator and a filter that exhibit preferable characteristics. This resonator has: a via electrode which is formed within a dielectric substrate; a plurality of shielded conductors which are formed in the dielectric substrate so as to surround the via electrode; and a strip line which is connected to the via electrode inside the dielectric substrate and which is disposed so as to at least face the shielded conductors, wherein, of the plurality of shielded conductors, one that is connected to a short-circuited end of the via electrode is capacitatively coupled, across a spacing, to a first input/output terminal and a second input/output terminal.
Claims15
A resonator comprising:
- a via electrode portion formed inside a dielectric substrate;
- a plurality of shielding conductors formed on the dielectric substrate so as to surround the via electrode portion;
- and
- a strip line connected to the via electrode portion inside the dielectric substrate and that faces at least the shielding conductor,
- wherein a first input/output terminal and a second input/output terminal are capacitively coupled via gaps to a shielding conductor, among the plurality of shielding conductors, to which a short-circuited end of the via electrode portion is connected.
A resonator comprising:
- a via electrode portion formed inside a dielectric substrate;
- a plurality of shielding conductors formed on the dielectric substrate so as to surround the via electrode portion;
- and
- a strip line connected to the via electrode portion inside the dielectric substrate and that faces at least the shielding conductor,
- wherein a first input/output terminal or a second input/output terminal is coupled to the via electrode portion.
Dependencies are inferred from the claim text.