Patent ID: 7852170

Claim:
An apparatus, comprising: an RF matching network coupled to at least one RF input port and at least one RF output port and including one or more voltage or current controlled variable reactive elements; a voltage detector coupled to said at least one RF output port via a variable voltage divider to determine the voltage at said at least one RF output port and provide voltage information to a controller that controls a bias driving circuit which provides voltage or current bias to said RF matching network; a variable voltage divider coupled to said voltage detector and implemented using a multi-pole RF switch to select one of a plurality of different resistance ratios to improve the dynamic range of said apparatus; and wherein said RF matching network is adapted to maximize RF power transferred from said at least one RF input port to said at least one RF output port by varying the voltage or current to said voltage or current controlled variable reactive elements to maximize the RF voltage at said at least one RF output port.