发明申请
- 专利标题: POWER AMPLIFIER MODULE
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申请号: US16013039申请日: 2018-06-20
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公开(公告)号: US20180302045A1公开(公告)日: 2018-10-18
- 发明人: Shota ISHIHARA , Seiko ONO , Yusuke SHIMAMUNE , Fuminori MORISAWA , Shizuki NAKAJIMA , Yuri HONDA , Kazuhiro KOSHIO , Masato SATO
- 申请人: Murata Manufacturing Co., Ltd.
- 优先权: JP2016-184752 20160921
- 主分类号: H03F3/21
- IPC分类号: H03F3/21 ; H03F1/02 ; H03F3/24 ; H03F3/191 ; H03F1/34 ; H03F1/22
摘要:
A power amplifier module includes a first current source that outputs a first current corresponding to a level control voltage for controlling a signal level of an amplified signal, a second current source that outputs a second current corresponding to the level control voltage, a first transistor in which an input signal and a first bias current are supplied to a base and an emitter is grounded, a second transistor in which an emitter is connected to a collector of the first transistor, the second current is supplied to a base, and a first amplified signal obtained by amplifying the input signal is output from a collector, and a third transistor in which the first current is supplied to a collector, a bias control current or voltage is supplied to a base, and the first bias current is supplied from an emitter to the base of the first transistor.
公开/授权文献
- US10256778B2 Power amplifier module 公开/授权日:2019-04-09
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