Dual loop feedforward power amplifier
AssigneePowerwave Technologies, Inc.
InventorsAlex Rabinovich, Mark Gurvich, Jianquing He
Life of this patent
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Abstract
A feedforward amplifier. The present invention therefore provides a feedforward amplifier, comprising: a pilot reference generator that generates a pilot signal; a first carrier cancellation loop; a first error amplifier loop including a first error amplifier, wherein the pilot signal is utilized to provide gain stabilization in the first error amplifier a third loop; a second carrier cancellation loop that includes a first phase and amplitude adjuster in module and a second amplitude and phase adjuster disposed between module and module, wherein the pilot signal is utilized to control the adjustment of the second carrier cancellation loop.
Claims8
A feedforward amplifier, comprising:
- a pilot reference generator that generates a pilot signal;
- a first carrier cancellation loop;
- a first error amplifier loop including a first error amplifier, wherein the pilot signal is utilized to provide gain stabilization in the first error amplifier
- a third loop;
- a second carrier cancellation loop that includes a first phase and amplitude adjuster in module and a second amplitude and phase adjuster disposed between module and module, wherein the pilot signal is utilized to control the adjustment of the second carrier cancellation loop.
Dependencies are inferred from the claim text.