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POWER AMPLIFICATION SYSTEM WITH ENVELOPE-BASED BIAS
POWER AMPLIFICATION SYSTEM WITH ENVELOPE-BASED BIAS
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机译:具有基于信封的偏置的功率放大系统
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摘要
Disclosed herein are power amplification systems that are dynamically biased based on a signal indicative of an envelope of the signal being amplified. The power amplification systems include a power amplifier configured to amplify an input radio-frequency (RF) signal to generate an output RF signal when biased by a biasing signal. The power amplification systems also include a bias component configured to generate the biasing signal based on an envelope signal indicative of an envelope of the input RF signal. The biasing signal can improve or enhance the linearity of the power amplification systems.
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