Title:
MULTIPLEXER, TRANSMISSION DEVICE AND RECEPTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/212025
Kind Code:
A1
Abstract:
This multiplexer (1) is provided with: a common connection terminal (30); a transmission-side filter (11) and a reception-side filter (21), which are connected to the common connection terminal (30) and have passbands different from each other; and a delay line (24) which is connected between the reception-side filter (21) and the common connection terminal (30). The transmission-side filter (11) and the reception-side filter (21) have at least one of a series arm resonator which is connected between an input terminal and an output terminal and a parallel arm resonator which is connected between a reference terminal and a connection path that connects the input terminal and the output terminal to each other. The reception-side filter (21) has a parallel arm resonator (251) at a position closest to the common connection terminal (30); and an inductance element (261) is connected between the parallel arm resonator (251) and the reference terminal.
Inventors:
SHIMIZU YASUHIRO (JP)
Application Number:
PCT/JP2018/017847
Publication Date:
November 22, 2018
Filing Date:
May 08, 2018
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03H9/72
Domestic Patent References:
| WO2012011310A1 | 2012-01-26 |
Foreign References:
| JP2004328676A | 2004-11-18 | |||
| JP2003163570A | 2003-06-06 | |||
| JPH10270976A | 1998-10-09 | |||
| JP2005057342A | 2005-03-03 | |||
| JP2008205893A | 2008-09-04 | |||
| JP2000151456A | 2000-05-30 | |||
| JP2000216661A | 2000-08-04 |
Attorney, Agent or Firm:
YOSHIKAWA, Shuichi et al. (JP)
Download PDF:
Previous Patent: MAGNESIUM ALLOY, MAGNESIUM ALLOY CAST, AND METHOD FOR PRODUCING SAME
Next Patent: ANKLE EXERCISE DEVICE
Next Patent: ANKLE EXERCISE DEVICE