Title:
FRONT-END MODULE AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/008274
Kind Code:
A1
Abstract:
A front-end module (1) which supports a CA system is provided with: a signal path (12) for transmitting a signal in a first frequency band and a signal path (13) for transmitting a signal in a second frequency band; a switch module (11) which has antenna terminals (110L and 110M) and selection terminals (111L, 111M, and 112M), and which is connected to antenna elements (2L and 2M); and a balun (14) disposed on the signal path (13), wherein a first balanced terminal and a second balanced terminal of the balun (14) are respectively connected to the selection terminals (111L and 112M), and the balun (14) divides a multiplied wave of the transmitted signal in the first frequency band inputted from an unbalanced terminal, and outputs the divided signals to the first balanced terminal and the second balanced terminal so as to have mutually opposite phases.
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Inventors:
HANAOKA KUNITOSHI (JP)
Application Number:
PCT/JP2017/019262
Publication Date:
January 11, 2018
Filing Date:
May 23, 2017
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H04B1/50; H03H7/42; H03H7/46; H04B1/00
Domestic Patent References:
| WO2009078095A1 | 2009-06-25 | |||
| WO2016194923A1 | 2016-12-08 |
Foreign References:
| US20120201153A1 | 2012-08-09 | |||
| JP2007158987A | 2007-06-21 | |||
| JP2004194097A | 2004-07-08 |
Attorney, Agent or Firm:
YOSHIKAWA, Shuichi et al. (JP)
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