Title:
FILTER DESIGNING METHOD, FILTER, MULTIPLEXER, AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/022438
Kind Code:
A1
Abstract:
The present invention relates to the technical field of filters, and relates in particular to a filter designing method, a filter, a multiplexer, and a communication device. The method is used to appropriately configure, according to design indexes, the thickness of a raised portion at a connection end and a non-connection end of a top electrode in each of resonators arranged in series, each of resonators arranged in parallel, and a resonator in a bandwidth adjustment unit, thereby improving the insertion loss characteristics of a filter, reducing the insertion loss of the filter, and accordingly reducing production costs and increasing design flexibility to a certain extent.
Inventors:
PANG WEI (CN)
BIAN ZIPENG (CN)
BIAN ZIPENG (CN)
Application Number:
PCT/CN2021/108346
Publication Date:
February 03, 2022
Filing Date:
July 26, 2021
Export Citation:
Assignee:
ROFS MICROSYSTEM TIANJIN CO LTD (CN)
International Classes:
H03H9/13; H03H9/02; H03H9/54; H03H9/70
Foreign References:
| CN111953314A | 2020-11-17 | |||
| CN103281050A | 2013-09-04 | |||
| CN110061712A | 2019-07-26 | |||
| CN111010103A | 2020-04-14 | |||
| US5572173A | 1996-11-05 |
Attorney, Agent or Firm:
CHINA SMART INTELLECTUAL PROPERTY LTD. (CN)
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