Apparatus and methods for power amplifiers

摘要

Apparatus and methods for power amplifiers are disclosed. In one embodiment, a power amplifier circuit assembly includes a power amplifier and an impedance matching network. The impedance matching network is operatively associated with the power amplifier and is configured to provide a load line impedance to the power amplifier between about 6 Ω and about 10 Ω. The impedance matching network includes a fundamental matching circuit and one or more termination circuits, and the fundamental matching circuit and each of the of the one or more termination circuits include separate input terminals for coupling to an output of the power amplifier so as to allow the fundamental matching circuit and each of the one or more termination circuits to be separately tuned.

主权项

1. A power amplifier circuit assembly comprising:
a power amplifier including an input and an output, the input configured to receive a radio frequency signal having a fundamental frequency and the output configured to provide an amplified radio frequency signal; and an impedance matching network operatively associated with the power amplifier and configured to provide a load line impedance between about 6 Ω and about 10 Ω at the fundamental frequency, the impedance matching network including a fundamental matching circuit and one or more termination circuits, the fundamental matching circuit and each of the of the one or more termination circuits including separate input terminals for coupling to the output of the power amplifier so as to allow the fundamental matching circuit and each of the one or more termination circuits to be separately tuned.