Title:
METHOD, ACOUSTIC WAVE FILTER, MULTIPLEXER, AND COMMUNICATION DEVICE FOR IMPROVING NONLINEAR PERFORMANCE
Document Type and Number:
WIPO Patent Application WO/2022/121818
Kind Code:
A1
Abstract:
A method, an acoustic wave filter, a multiplexer, and a communication device for improving nonlinear performance are disclosed. According to the method, the acoustic wave filter comprises a plurality of piezoelectric acoustic resonators and at least one set of parallel split resonator groups is included. The method comprises one or more of the following steps: differentiating the structure of each resonator wire in the parallel split resonator group, so that a non-linear component generated by each resonator is at least partially cancelled; changing the area and/or shape of each resonator in the parallel split resonator group, such that the non-linear component generated by each resonator is at least partially cancelled; and adding a conductor to the filter, so as to at least partially cancel the non-linear component generated by each resonator.
Inventors:
CAI HUALIN (CN)
PANG WEI (CN)
PANG WEI (CN)
Application Number:
PCT/CN2021/135624
Publication Date:
June 16, 2022
Filing Date:
December 06, 2021
Export Citation:
Assignee:
ROFS MICROSYSTEM TIANJIN CO LTD (CN)
International Classes:
H03H9/64
Foreign References:
| CN112468111A | 2021-03-09 | |||
| CN110768641A | 2020-02-07 | |||
| CN110089032A | 2019-08-02 | |||
| CN110798166A | 2020-02-14 | |||
| CN101136620A | 2008-03-05 | |||
| US20190341911A1 | 2019-11-07 |
Attorney, Agent or Firm:
CHINA SMART INTELLECTUAL PROPERTY LTD. (CN)
Download PDF:
Previous Patent: GROUP CREATION METHOD AND APPARATUS, AND DEVICE AND STORAGE MEDIUM
Next Patent: CALL METHOD AND DEVICE
Next Patent: CALL METHOD AND DEVICE