Patent ID: 8736379

Claim:
A power circuit, comprising: a RF transistor; an input match network coupled to an input to the RF transistor and to an input to the power circuit, wherein the input match network includes a resistor, an inductor and a capacitor that are coupled together in series between the input to the RF transistor and a ground, wherein the values of the resistor and the inductor are selected to match an input impedance of the RF transistor to a source impedance at the input of the power circuit over at least a portion of a high frequency range, wherein the value of the capacitor has a substantially negligible contribution to the match at the high frequency range, and wherein the value of the capacitor is selected so that the series combination of the resistor, the inductor and the capacitor substantially reduce the magnitude of the impedance presented to the input of the RF transistor in a low frequency range relative to the source impedance at the input of the power circuit.