Invention Grant
US09571056B2 Power amplifier with self aligned peaking stage 有权
功率放大器,具有自对准峰值阶段

Power amplifier with self aligned peaking stage
Abstract:
RF PA circuitry includes an amplifier stage, gain compensation circuitry, and an adder. The amplifier stage is configured to receive and amplify an RF input signal to provide an RF output signal. The gain compensation circuitry is coupled in parallel with the amplifier stage and configured to receive the RF input signal and provide a gain compensation signal, wherein the gain compensation signal is configured to linearize at least a portion of the gain response of the amplifier stage or the RF PA circuitry in general. The adder is coupled between an output of the amplifier stage and the gain compensation stage and is configured to receive and add the RF output signal and the gain compensation signal to provide a linearized RF output signal.
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