Patent ID: 8693963

Claim:
A variable impedance circuit, comprising: a matching network to couple to a tunable device; wherein the matching network comprises a first port and a second port; wherein the tunable device is coupled to one of the first port or the second port; wherein the matching network comprises one or more variable dielectric capacitors; wherein the one or more variable dielectric capacitors are operable to receive a first of one or more variable voltage signals to cause the one or more variable dielectric capacitors to change a first impedance of the matching network; wherein the tunable device is operable to receive a second of one or more variable voltage signals to cause a change in a second impedance of the tunable device; and wherein at least one of the one or more variable dielectric capacitors comprises: a first conductor coupled to one of the first port or the second port; a second conductor; and a tunable dielectric material positioned between the first conductor and the second conductor, wherein at least one of the first conductor or the second conductor, or both are adapted to receive the first of the one or more variable voltage signals to cause the change in the first impedance of the matching network.