Receiving filter, multiplexer, and communication apparatus
AssigneeKYOCERA Corporation
InventorTomonori URATA
Life of this patent
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Abstract
A receiving filter includes a reception terminal which outputs reception signals from an antenna terminal, a second DMS filter configured by a longitudinally coupled double-mode type acoustic wave filter which is located in a signal path from the antenna terminal to the reception terminal, a fourth GND terminal given a reference potential, and a fourth GND wiring connected to the fourth GND terminal and to the second DMS filter. A reception terminal conductor configured by the reception terminal and the reception terminal wiring connected to the reception terminal and A fourth GND conductor configured by the fourth GND terminal and the fourth GND wiring are adjacent and are capacity-coupled with respect to each other.
Claims11
A receiving filter comprising
- an antenna terminal,
- a reception terminal outputting signals from the antenna terminal,
- a reception terminal wiring connected to the reception terminal,
- a first filter of a longitudinally coupled double-mode type acoustic wave filter located in a signal path from the antenna terminal to the reception terminal,
- a first reference potential terminal given a reference potential, and
- a first reference potential wiring connected to the first reference potential terminal and to the first filter, wherein
- a reception terminal conductor comprising the reception terminal and the reception terminal wiring and a first reference potential conductor comprising the first reference potential terminal and the first reference potential wiring are adjacent and capacity-coupled with respect to each other.
Dependencies are inferred from the claim text.