US Patent 12113492 Power amplification apparatus, beamforming system, transmitter, and base station

This application provides a power amplification apparatus, a beamforming system, a transmitter, and a base station. The apparatus includes a power amplifier that amplifies a first signal, a power supply, and a power supply modulator that controls, based on an envelope signal corresponding to the first signal, an operating voltage provided by the power supply to the power amplifier. The apparatus is further configured to amplify a second signal. The first signal is generated based on the part of a target amplified signal whose amplitude falls within a preset amplitude range. The second signal is generated based on the part of the target amplified signal whose amplitude falls beyond the preset amplitude range.