Title:
FILTER COMPRISING DOPED RESONATOR, AND MULTIPLEXER AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/089597
Kind Code:
A1
Abstract:
Disclosed are a filter comprising a doped resonator, and a multiplexer and a communication device, wherein the doped resonator and a non-doped resonator are allocated to different positions in a filter topology, thereby saving the cost, reducing the package size and improving the filter performance.
Inventors:
XU LIJUN (CN)
PANG WEI (CN)
PANG WEI (CN)
Application Number:
PCT/CN2021/127485
Publication Date:
May 05, 2022
Filing Date:
October 29, 2021
Export Citation:
Assignee:
ROFS MICROSYSTEM TIANJIN CO LTD (CN)
International Classes:
H03H9/205; H03H9/54; H03H9/70
Domestic Patent References:
| WO2020129470A1 | 2020-06-25 |
Foreign References:
| CN112332801A | 2021-02-05 | |||
| CN110034744A | 2019-07-19 | |||
| CN111342808A | 2020-06-26 | |||
| CN111510107A | 2020-08-07 | |||
| US20180115302A1 | 2018-04-26 |
Other References:
COLOMBO LUCA; MICHETTI GIUSEPPE; PIRRO MICHELE; CASSELLA CRISTIAN; PIAZZA GIANLUCA; RINALDI MATTEO: "Optimization of a Series-Parallel MEMS Resonators Configuration for Passive Voltage Amplification in Wake-up Radios", 2020 JOINT CONFERENCE OF THE IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM AND INTERNATIONAL SYMPOSIUM ON APPLICATIONS OF FERROELECTRICS (IFCS-ISAF), IEEE, 19 July 2020 (2020-07-19), pages 1 - 4, XP033845226, DOI: 10.1109/IFCS-ISAF41089.2020.9234824
Attorney, Agent or Firm:
CHINA SMART INTELLECTUAL PROPERTY LTD. (CN)
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