Title:
RESONATOR AND RESONATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/112380
Kind Code:
A1
Abstract:
Provided are a resonator and a resonating device which make it possible to suppress occurrence of a combination of main mode vibration and spurious mode vibration. A resonator 10 is provided with: a vibration unit 110 including three or more of vibration arms 121 which respectively have fixed ends, and at least two of which are bent out of plane in different phases, and including a base 130 having one end to which the fixed ends of the vibration arms 121 are connected and the other end opposite to the one end; a holding unit 140 configured to hold the vibration unit 110; and a support arm 151 connected, at one end thereof, to the holding unit 140 and connected, at the other end thereof, to the other end of the base 130. The support arm 151 has a reduction membrane LM configured to reduce a Q-factor of vibration of the support arm 151.
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Inventors:
KAWAI RYOTA (JP)
ENDOU FUMIYA (JP)
ENDOU FUMIYA (JP)
Application Number:
PCT/JP2022/030297
Publication Date:
June 22, 2023
Filing Date:
August 08, 2022
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03H9/24
Domestic Patent References:
| WO2020067484A1 | 2020-04-02 | |||
| WO2019155663A1 | 2019-08-15 | |||
| WO2020261630A1 | 2020-12-30 | |||
| WO2018123118A1 | 2018-07-05 |
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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