Title:
複合フィルタ装置
Document Type and Number:
Japanese Patent JP7251530
Kind Code:
B2
Abstract:
A composite filter device includes bandpass filters whose respective one ends are electrically connected in common. A first bandpass filter of the bandpass filters includes a first filter, a switch, a second filter, and an impedance element that is electrically connected to the switch and having an impedance value larger than the input impedance value of the second filter. The switch is configured to be switched between a first state in which the first filter and the second filter are electrically connected and a second state in which the first filter and the impedance element are electrically connected.
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Inventors:
Junpei Yasuda
Takeuchi Soo
Takeuchi Soo
Application Number:
JP2020127845A
Publication Date:
April 04, 2023
Filing Date:
July 29, 2020
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
H03H7/46; H03H9/64; H03H9/72
Domestic Patent References:
| JP6260876A | ||||
| JP2002076838A | ||||
| JP2010178380A | ||||
| JP2006086871A | ||||
| JP9098046A | ||||
| JP2014140115A | ||||
| JP2012253497A | ||||
| JP2014033377A |
Foreign References:
| WO2016174938A1 | ||||
| WO2016208670A1 | ||||
| WO2016208447A1 | ||||
| WO2016088680A1 |
Attorney, Agent or Firm:
Patent Attorney Osaka Front Patent Office