Title:
ACOUSTIC FILTER AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/137769
Kind Code:
A1
Abstract:
The embodiments of the present application relate to the technical field of semiconductors. Provided are an acoustic filter and an electronic device by means of which the filtering performance of an acoustic filter can be improved. The acoustic filter comprises a first resonator, a second resonator and a first acoustic wave suppression structure, wherein the first resonator and the second resonator are arranged in a first direction, the first acoustic wave suppression structure is disposed between the first resonator and the second resonator, and at least one forbidden frequency band generated by the first acoustic wave suppression structure is used for reducing acoustic waves, which are leaked between the first resonator and the second resonator and are propagated in the first direction.
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Inventors:
HUANG YULIN (CN)
ZHANG BENFENG (CN)
LI XINYI (CN)
CHE RONGRONG (CN)
GAO ZONGZHI (CN)
ZHANG BENFENG (CN)
LI XINYI (CN)
CHE RONGRONG (CN)
GAO ZONGZHI (CN)
Application Number:
PCT/CN2022/073595
Publication Date:
July 27, 2023
Filing Date:
January 24, 2022
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H03H9/64
Domestic Patent References:
| WO2021193345A1 | 2021-09-30 |
Foreign References:
| CN110089032A | 2019-08-02 | |||
| CN106100652A | 2016-11-09 | |||
| CN113972901A | 2022-01-25 | |||
| CN109787579A | 2019-05-21 |
Attorney, Agent or Firm:
BEIJING ZBSD PATENT&TRADEMARK AGENT LTD. (CN)
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