Title:
RADIO FREQUENCY PIEZOELECTRIC MULTIPLEXER FOR IMPROVING ISOLATION BASED ON PHASE-SHIFT NETWORK AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/125344
Kind Code:
A1
Abstract:
The present invention relates to a radio frequency piezoelectric multiplexer unit, comprising: a packaging carrier plate; at least three filters suitable for being jointly connected to a public port; a matched inductor used for grounding; and a phase-shift network module, wherein the filters, the matched inductor and the phase-shift network module are packaged into the packaging carrier plate; at least part of the phase-shift network module is suitable for being connected between the public port and the matched inductor; the at least three filters comprise a receiving filter and a transmitting filter; a public port connecting area is set between the receiving filter and the transmitting filter; and the matched inductor is located outside an isolation degradation area between the receiving filter and the transmitting filter. The present invention further relates to a radio frequency piezoelectric multiplexer with the radio frequency piezoelectric multiplexer unit and an electronic device with the above-mentioned unit.
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Inventors:
PANG WEI (CN)
ZHENG YUNZHUO (CN)
ZHENG YUNZHUO (CN)
Application Number:
PCT/CN2019/121010
Publication Date:
June 25, 2020
Filing Date:
November 26, 2019
Export Citation:
Assignee:
UNIV TIANJIN (CN)
ROFS MICROSYSTEM TIANJIN CO LTD (CN)
ROFS MICROSYSTEM TIANJIN CO LTD (CN)
International Classes:
H03H9/70
Foreign References:
| CN107623503A | 2018-01-23 | |||
| CN108964633A | 2018-12-07 | |||
| CN108432131A | 2018-08-21 |
Attorney, Agent or Firm:
BEIJING JINCHENG TONGDA & NEAL LAW FIRM (CN)
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