Title:
通信端末装置
Document Type and Number:
Japanese Patent JP5850049
Kind Code:
B2
Abstract:
A front-end circuit includes a diplexer and an impedance conversion circuit. The diplexer includes a feeding side common port through which a high-frequency signal in a high band and a high-frequency signal in a low band are input and output, a first port through which a high-frequency signal in a high band is input and output, and a second port through which a high-frequency signal in a low band is input and output, and demultiplexes or multiplexes the high-frequency signal in a low band and the high-frequency signal in a high band. The impedance conversion circuit is connected between the second port of the diplexer and an antenna port. The first port of the diplexer is directly connected to the antenna port through a transmission line.
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Inventors:
Kenichi Ishizuka
Tokiko Kato
Ueki travelogue
Tokiko Kato
Ueki travelogue
Application Number:
JP2013513980A
Publication Date:
February 03, 2016
Filing Date:
April 27, 2012
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
H03H7/38; H01Q1/50; H04B1/50
Domestic Patent References:
| JP2007288361A | 2007-11-01 | |||
| JP2008205991A | 2008-09-04 | |||
| JP2000151446A | 2000-05-30 |
Foreign References:
| WO2009020025A1 | 2009-02-12 |
Attorney, Agent or Firm:
Kaede International Patent Office