Invention Grant
- Patent Title: High frequency module
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Application No.: US16545243Application Date: 2019-08-20
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Publication No.: US10680579B2Publication Date: 2020-06-09
- Inventor: Masanori Kato , Shinya Mizoguchi , Yukiteru Sugaya
- Applicant: Murata Manufacturing Co., Ltd.
- Applicant Address: JP Kyoto
- Assignee: MURATA MANUFACTURING CO., LTD.
- Current Assignee: MURATA MANUFACTURING CO., LTD.
- Current Assignee Address: JP Kyoto
- Agency: Keating & Bennett, LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@1bf06801
- Main IPC: H03H9/145
- IPC: H03H9/145 ; H03H9/64 ; H03H9/02 ; H03H9/05 ; H03H9/25 ; H03H9/72 ; H03H7/09

Abstract:
A transmission filter in a high frequency module includes serial arm resonators electrically connected in series to a serial arm electrically connecting a shared terminal and a transmission terminal, parallel arm resonators each electrically connected in series to each of parallel arms electrically connecting the serial arm and a ground, a first inductor electrically connected between the ground and a connection end electrically connecting at least the two parallel arm resonators of the parallel arm resonators, and a second inductor electrically connected between the ground and one parallel arm resonator different from the at least two parallel arm resonators of the parallel arm resonators. The second inductor is electromagnetic field coupled to at least one of an antenna side matching element, a transmission side matching element, and a portion of the serial arm in the transmission filter. The first and second inductors obstruct electromagnetic field coupling therebetween.
Public/Granted literature
- US20190379350A1 HIGH FREQUENCY MODULE Public/Granted day:2019-12-12
Information query
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