Patent ID: 8749307

Claim:
An apparatus for amplifying a signal for use in a wireless network, the apparatus comprising: a power amplifier configured to output the signal at an output power; an envelope modulator configured to control a bias voltage of the power amplifier; a tunable matching network (TMN) including a plurality of immittance elements; a controller operably connected the envelope modulator and the TMN, the controller configured to identify a desired value for the output power of the power amplifier, select a bias setting for the power amplifier from a plurality of bias settings based on the desired value for the output power of the power amplifier, control the output power of the power amplifier based on the bias setting of the power amplifier, and set a number of the plurality of immittance elements based on the bias setting of the power amplifier; and a switch operably connected to the controller, the switch, when set, configured to cause the signal to bypass the power amplifier.