Patent ID: 8067997

Claim:
An impedance matching apparatus for matching an impedance of a source to an impedance of a load, the apparatus comprising: a mismatch detection circuit connected to the load and configured to receive information regarding the impedance of the source, determine the impedance of the load, and produce a difference between the source and load impedances, each of the source and load impedances varying based on an operating frequency; a match network controller configured to receive the difference between the source and load impedances from the mismatch detection circuit and produce a control value based on the difference; and a matching network including a plurality of resonant elements, each of the plurality of resonant elements resonating with respect to a different frequency, at least one of the plurality of resonant elements being controlled based on the control value to resonate at the operating frequency such that the matching network produces an impedance that matches the impedance of the source to the impedance of the load.