Amplifier device and wireless communication device

摘要

An amplifier device 1 includes: a distortion compensation section 3 that performs distortion compensation for an input signal x to an amplifier 2 by digital signal processing; and a separation section 9 that separates an output signal from the amplifier 2 into an I signal as an analog signal component including phase information of the output signal and an analog signal component including power information of the output signal. The distortion compensation section 3 performs distortion compensation for the amplifier 2, based on 1-bit signals obtained by expressing, in 1 bit, the analog I signal and the analog signal component including the power information of the output signal, respectively.

主权项

1. An amplifier device comprising:
an amplifier; a distortion compensation section configured to perform distortion compensation for an input signal to the amplifier by digital signal processing; and a separation section configured to separate an output signal from the amplifier into an analog signal component including phase information of the output signal, and an analog signal component including power information of the output signal, wherein the separation section includes a power detector configured to detect power of the output signal and to output the analog signal component including power information of the output signal, and the distortion compensation section performs the distortion compensation for the amplifier, based on 1-bit signals obtained by expressing, in 1 bit, the analog signal component including the phase information of the output signal and the analog signal component including the power information of the output signal output by the power detector, respectively.