Title:
DUPLEXER DESIGN METHOD, DUPLEXER, MULTIPLEXER, AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/068766
Kind Code:
A1
Abstract:
A duplexer design method, a duplexer, a multiplexer, and a communication device. In the method, the thicknesses of lifting portions on a parallel resonator in a common matching unit in a high-frequency filter and a parallel resonator in a post-stage circuit are limited within a reasonable range, so that the minimum deterioration of insertion loss of the high-frequency filter can be achieved under the limiting condition and without affecting insertion loss of a low-frequency filter, and the design flexibility of the duplexer is improved to a certain extent.
Inventors:
BIAN ZIPENG (CN)
PANG WEI (CN)
PANG WEI (CN)
Application Number:
PCT/CN2021/120885
Publication Date:
April 07, 2022
Filing Date:
September 27, 2021
Export Citation:
Assignee:
ROFS MICROSYSTEM TIANJIN CO LTD (CN)
International Classes:
H03H9/70
Foreign References:
| CN112187213A | 2021-01-05 | |||
| CN105610407A | 2016-05-25 | |||
| CN111010119A | 2020-04-14 | |||
| CN110868184A | 2020-03-06 | |||
| US20080055021A1 | 2008-03-06 |
Attorney, Agent or Firm:
CHINA SMART INTELLECTUAL PROPERTY LTD. (CN)
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