Invention Grant
- Patent Title: Acoustic wave filter
-
Application No.: US17108039Application Date: 2020-12-01
-
Publication No.: US11863161B2Publication Date: 2024-01-02
- Inventor: Tetsu Takahashi , Toru Yamaji , Takuma Kuzushita
- Applicant: Murata Manufacturing Co., Ltd.
- Applicant Address: JP Nagaokakyo
- Assignee: MURATA MANUFACTURING CO., LTD.
- Current Assignee: MURATA MANUFACTURING CO., LTD.
- Current Assignee Address: JP Kyoto
- Agency: Keating & Bennett, LLP
- Priority: JP 19238832 2019.12.27
- Main IPC: H03H9/02
- IPC: H03H9/02 ; H03H9/25 ; H03H9/64 ; H03H9/145

Abstract:
An acoustic wave filter includes a first resonance circuit including a first series arm resonator and a first capacitive element. The first series arm resonator is provided on a path connecting a first terminal and a second terminal. The first capacitive element is coupled in parallel with the first series arm resonator. The first series arm resonator includes a first divided resonator and a second divided resonator coupled in series with each other. The first resonance circuit includes a second resonance circuit including the first divided resonator and a second capacitive element coupled in parallel with the first divided resonator.
Public/Granted literature
- US20210203306A1 ACOUSTIC WAVE FILTER Public/Granted day:2021-07-01
Information query