Patent ID: 7555275

Claim:
An RF envelope amplitude control system, the system comprising: an RF amplifier configured to receive an RF input signal and to output an RF output signal, wherein said RF amplifier is associated with a feedback device that is configured to create a first feedback signal representing the power in said RF output signal; a transmit waveform generator configured to generate a reference waveform signal; an adaptive table waveform generator configured to compare said reference waveform signal and said first feedback signal and to create a second feedback signal based on the distortion between said reference waveform signal and said first feedback signal; and a loop filter configured to combine said reference waveform signal, said first feedback signal, and said second feedback signal to form an amplifier control signal, wherein said amplifier control signal is provided to said RF amplifier to adjust said RF output signal to reduce nonlinearity in said RF output signal with reference to a specified RF envelope.