发明授权
- 专利标题： Method and apparatus for power amplifier linearization
- 专利标题（中）： 功率放大器线性化的方法和装置
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申请号： US13882933申请日： 2011-11-01
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公开(公告)号： US09007128B2公开(公告)日： 2015-04-14
- 发明人: Dev V. Gupta
- 申请人： Dev V. Gupta
- 申请人地址： US MA Acton
- 专利权人： Newlans, Inc.
- 当前专利权人： Newlans, Inc.
- 当前专利权人地址： US MA Acton
- 代理机构： Knobbe, Martens, Olson & Bear, LLP
- 国际申请： PCT/US2011/058785 WO 20111101
- 国际公布： WO2012/061385 WO 20120510
- 主分类号： H03F1/08
- IPC分类号： H03F1/08 ; H03F3/21 ; H03F1/32 ; H03F3/195 ; H03F3/24 ; H03F3/45
摘要：
In an embodiment, a circuit includes a variable group delay configured to delay a wideband input signal to obtain a delayed input signal; a wideband operational amplifier configured to determine an error signal based on a difference between the delayed input signal and a linearized power amplifier output; a feedback amplifier configured to amplify the error signal to obtain an amplified error signal; and a directional combiner configured to combine the amplified error signal with the power amplifier output to obtain the linearized power amplifier output.
公开/授权文献
- US20130293308A1 METHOD AND APPARATUS FOR POWER AMPLIFIER LINEARIZATION 公开/授权日：2013-11-07
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