发明申请
US20130106509A1 Power Amplifier Linearization Using Cancellation-Based Feed Forward Methods and Systems
有权
功率放大器线性化使用基于取消的前馈方法和系统
- 专利标题： Power Amplifier Linearization Using Cancellation-Based Feed Forward Methods and Systems
- 专利标题（中）： 功率放大器线性化使用基于取消的前馈方法和系统
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申请号： US13716564申请日： 2012-12-17
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公开(公告)号： US20130106509A1公开(公告)日： 2013-05-02
- 发明人: Wei Chen , Wilhelm Steffen Hahn
- 申请人： Wei Chen , Wilhelm Steffen Hahn
- 申请人地址： US CA Milpitas
- 专利权人： INTERSIL AMERICAS INC.
- 当前专利权人： INTERSIL AMERICAS INC.
- 当前专利权人地址： US CA Milpitas
- 主分类号： H03F1/32
- IPC分类号： H03F1/32
摘要：
Linearizers can improve the linearity of power amplifiers by canceling or reducing amplitude of non-linearity components, (e.g., IM3, IM5, IM7, IM9, etc.) generated by the power amplifier. The linearizers can obtain samples of signals output by the power amplifier and process the samples to produce a canceling signal that is applied onto or into an output of the power amplifier. The canceling signal is generated such that when applied to the output of the power amplifier, the canceling signal cancels or reduces at least a portion of the non-linearity components produced by the power amplifier. A controller can improve the correction of the non-linearity components by executing one or more tuning algorithms and adjusting settings of the linearizer based on the results of the algorithm(s).
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