Invention Grant
US08395445B2 Power amplifier, non-linear distortion correcting method of power amplifier and radio communication device
有权
功率放大器，功率放大器和无线电通信设备的非线性失真校正方法
- Patent Title: Power amplifier, non-linear distortion correcting method of power amplifier and radio communication device
- Patent Title (中): 功率放大器，功率放大器和无线电通信设备的非线性失真校正方法
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Application No.: US13003791Application Date: 2009-06-05
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Publication No.: US08395445B2Publication Date: 2013-03-12
- Inventor: Masahiro Kawai
- Applicant: Masahiro Kawai
- Applicant Address: JP Tokyo
- Assignee: NEC Corporation
- Current Assignee: NEC Corporation
- Current Assignee Address: JP Tokyo
- Priority: JP2008-183699 20080715
- International Application: PCT/JP2009/002541 WO 20090605
- International Announcement: WO2010/007721 WO 20100121
- Main IPC: H03F1/26
- IPC: H03F1/26
Abstract:
The invention intends to supply a power amplifier enable to correct a distortion correctly by linearizer corresponding to each amplifier if plural amplifiers are used at any operation points. A power amplifier according to the invention includes a number of amplifiers connected with multiple stages and a number of linearizers connected with multiple stages and correcting non-linear distortions of the amplifiers. In the invention, a distortion in the amplifier of a former stage is corrected by the linearizer of a later stage.
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