Patent ID: 8558633

Claim:
An apparatus, comprising: an RF matching network comprising one or more variable reactive elements, wherein the RF matching network has an RF input port coupled to a transmitter producing an RF signal supplied to the RF input port, and wherein the RF matching network comprises an RF output port coupled to an antenna; and an RF voltage detector that receives a signal from the RF output port of the RF matching network, wherein the RF voltage detector detects an RF voltage magnitude representative of the signal produced by the RF output port of the RF matching network, wherein said RF matching network modifies signal power transferred the RF input port to the RF output port according to one or more bias signals applied to the one or more variable reactive elements to vary a variable impedance of the RF matching network, wherein the one or more variable reactive elements are coupled to a circuit that maps one or more control signals to the one or more bias signals, and wherein the one or more control signals are generated by a controller according to a mode of operation of a communication device and the RF voltage magnitude.