Withrow & Terranova, P.L.L.C.
Power amplifier having a nonlinear output capacitance equalization
Power amplifier (PA), regardless of the process used for the manufacturing of its devices, suffers from a nonlinear output capacitance that has significant impact on various aspects of the PA performance. This output capacitance is dependent on the large output voltage swing. Accordingly a compensation capacitance is added at the output of the PA that has a behavior that is inverse respective of the output voltage of that of the output capacitance of the PA. Connecting the compensation capacitor in parallel to the PA output capacitance, results in a total capacitance that is the sum of the output capacitance and its compensation capacitance. The total output capacitance is therefore essentially stable throughout the output voltage swing.
RF Micro Devices (Cayman Islands), Ltd.
H H H H H H H
H03F H03F H03F H03F H03F H03F H03F
additional inventional inventional inventional additional additional inventional
Chu Hsiung Baker Stephen George Tom
Ho Scott Franck Maxim Biedka