Invention Grant
- Patent Title: Power amplification module
- Patent Title (中): 功率放大模块
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Application No.: US14640341Application Date: 2015-03-06
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Publication No.: US09397618B2Publication Date: 2016-07-19
- Inventor: Kenichi Shimamoto , Satoshi Tanaka , Tadashi Matsuoka
- 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: Pearne & Gordon LLP
- Priority: JP2014-059025 20140320; JP2014-255478 20141217
- Main IPC: H03F1/02
- IPC: H03F1/02 ; H03F3/21 ; H03F1/30 ; H03F3/193 ; H03F1/56 ; H03F3/19 ; H03F3/24

Abstract:
A power amplification module includes a first transistor which amplifies and outputs a radio frequency signal input to its base; a current source which outputs a control current; a second transistor connected to an output of the current source, a first current from the control current input to its collector, a control voltage generation circuit connected to the output and which generates a control voltage according to a second current from the control current; a first FET, the drain being supplied with a supply voltage, the source being connected to the base of the first transistor, and the gate being supplied with the control voltage; and a second FET, the drain being supplied with the supply voltage, the source being connected to the base of the second transistor, and the gate being supplied with the control voltage.
Public/Granted literature
- US20150270809A1 POWER AMPLIFICATION MODULE Public/Granted day:2015-09-24
Information query
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