Patent ID: 6859104
Filing Date: 2005-02-22
Classification: G01R,H01G,H01L,H01P,H03B,H03F,H03H,H03J,H03L,H04B

Abstract:
1. A tunable power amplifier comprising: a power amplifier; a ferro-electric tunable component coupled to the power amplifier; a power amplifier output matching circuit coupled to the power amplifier, having an impedance and comprising the ferro-electric tunable component; a control line operably coupled to the ferro-electric component; a control source electrically coupled to the control line, the control source configured to transmit a control signal on the control line; wherein the ferro-electric component, responsive to the control signal, adjusts the impedance of the matching circuit; and wherein the matching circuit comprises: a second inductive element coupled at a first end of the second inductive element to the second end of the first inductive element; and a third ferro-electric tunable capacitor coupled at a first end of the third capacitor to a second end of the second inductive element and at a second end of the third capacitor to ground.