Patent ID: 7911277

Claim:
An adaptively tuned RF power amplifier comprising: at least one power amplifier stage having an active element; a tunable output network coupled to the at least one power amplifier stage, the tunable output network including one or more adjustable reactive elements; a mismatch detector to detect at least one tuning mismatch based, at least in part, on one or more signals, the one or more signals being present within at least one of the tunable output network and the at least one power amplifier stage, the mismatch detector configured to supply a mismatch indication of the tuning mismatch; a tuning controller responsive to the mismatch indication, to adjust at least one of the one or more adjustable reactive elements in the tunable output network so as to control the tuning mismatch; and wherein the tuning controller is operable to regulate a resonant frequency of the tunable output network and a transformation ratio of the tunable output network by adjusting the one or more adjustable reactive elements.