Title:
RESONATOR AND RESONATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/130676
Kind Code:
A1
Abstract:
The present invention improves DLD and suppresses reductions in resonant frequency adjustment rate. A resonator 10 that comprises: a vibrating part 110 that includes a base part 130 and a plurality of vibrating arms 121A–121D, at least two of which bend out of plane in different phases; a holding part 140 that is configured to hold the vibrating part 110; and a support arm 151 that is connected to the holding part 140 at one end and connected to a rear end part 131B of the base part 130 at the other end. As seen in plan view, the other end of the support arm 151 is connected at a position that, relative to the width WB of the base part 130, is within -0.1WB and 0.1WB of the position through which a center line CL1 of the rear end part 131B of the base part 130 passes. The length LS of the support arm 151 is 0.2–0.4 times the length LA of the vibrating arms 121A–121D.
Inventors:
KAWAI RYOTA (JP)
FUKUMITSU MASAKAZU (JP)
HIGUCHI YOSHIYUKI (JP)
FUKUMITSU MASAKAZU (JP)
HIGUCHI YOSHIYUKI (JP)
Application Number:
PCT/JP2021/027560
Publication Date:
June 23, 2022
Filing Date:
July 26, 2021
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03H9/24
Domestic Patent References:
| WO2020067484A1 | 2020-04-02 | |||
| WO2020049789A1 | 2020-03-12 | |||
| WO2019207829A1 | 2019-10-31 | |||
| WO2016174789A1 | 2016-11-03 |
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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