POWER AMPLIFIER

原文（中国語）

A radio frequency power amplifier for processing an RF input signal is provided. A splitter may distribute an RF input signal into a plurality of sub-path input signals distributed over a plurality of paths. A plurality of sub-path control units may receive the sub-path input signals and provide one or more of phase control, gain control and bias control to produce a plurality of sub-path output signals distributed over a plurality of configurable sub-paths, each path comprising at least one configurable path and at least one sub-path signal having a piecewise linear response. A combiner network may combine the sub-path output signals to generate an RF output signal. The plurality of configurable sub-paths may be configured such that the RF output concurrently achieves a linearity target and a power efficiency target across a full amplitude range of the RF output signal.