Patent ID: 7791413

Claim:
An analog amplification circuit comprising: an input port for receiving an input signal; a first signal path coupled to the input port, the first signal path comprising: a pre-amplification processing circuit configured to apply a first phase shift to the input signal to produce a pre-processed input signal, wherein the first phase shift is controlled by a first phase control signal; a power amplifier coupled to the pre-amplification processing circuit, the power amplifier configured to divide the pre-processed input signal into a plurality of sub-signals, amplify the plurality of sub-signals to produce a plurality of intermediate signals, and combine the plurality of intermediate signals to produce an amplified signal, wherein the amplification is controlled by a plurality of gain control signals; and a first combiner coupled to the power amplifier, the first combiner configured to combine the amplified signal and an error correction signal to produce an output signal; a second signal path coupled to the input port, the second signal path comprising a first phase comparator circuit configured to produce the first phase control signal based on a phase comparison of a delayed version of the input signal and one of the intermediate signals; a third signal path coupled to the input port, the third signal path comprising an amplitude comparator circuit configured to produce the plurality of gain control signals, wherein each gain control signal is based on the amplitude of the input signal and the amplitude of one of the intermediate signals; a fourth signal path coupled to the input port, the fourth signal path comprising an error detection circuit configured to produce the error correction signal based on a second delayed version of the input signal and a version of the amplified signal; and an output port for outputting the output signal.