Patent ID: 7268626

Claim:
An adjustable power amplifier comprises: an adjustable input capacitor section having an input connection, an output connection, and a ground connection, wherein the input connection of the adjustable input capacitor section is operably coupled to receive an input radio frequency (RF) signal and the ground connection of the adjustable input capacitor section is operably coupled to a circuit ground; an adjustable input transistor section having an input connection, an output connection, and a source connection, wherein the input connection of the adjustable input transistor section is operably coupled to the output connection of the adjustable input capacitor section and the source connection of the adjustable input transistor section is operably coupled to the circuit ground; an inductor having a first node and a second node, wherein the first node of the inductor is operably coupled to a power supply and the second node of the inductor is operably coupled to the output connection of the adjustable input transistor section to provide an output of the adjustable power amplifier; an adjustable bias voltage circuit operably coupled to provide a bias voltage to the input connection of the adjustable input transistor section; and a calibration module operably coupled to: measure one of a plurality of operational parameters of the power amplifier to produce a measured operational parameter; compare the measured operational parameter with a corresponding one of a plurality of desired operational parameter settings; when the comparing of the measured operational parameter with the corresponding one of a plurality of desired operational parameter settings is unfavorable, determine a difference between the measured operational parameter and the corresponding one of a plurality of desired operational parameter settings; and calibrate at least one of the adjustable input capacitor section, the adjustable input transistor section, and the adjustable bias voltage circuit based on the difference.