Patent ID: 9590564
Date: 2017-03-07
CPC Classifications: H03F

Claim:
1. A multiband power amplification apparatus, comprising: a first digital predistortion module; a first digital-to-analog converter; a first filtering and modulation module connected to the first digital-to-analog converter; a peak power amplifier connected to the first filtering and modulation module; a second digital predistortion module; a second digital-to-analog converter; a second filtering and modulation module connected to the second digital-to-analog converter; a main power amplifier connected to the second filtering and modulation module; a first input terminal, configured to receive a signal in a frequency band f a second input terminal configured to receive a signal in a frequency band f a first adder; a first adjustment module, configured to adjust the first channel of signal and output an adjusted first channel of signal to the first adder; a second adjustment module, configured to adjust the third channel of signal and output an adjusted third channel of signal to the first adder, wherein the first adder is configured to converge the signal adjusted by the second adjustment module and the signal output by the first adjustment module and output a converged signal to the first digital-to-analog converter; and a second adder, configured to converge the second channel of signal and the fourth channel of signal and output a converged signal to the second digital-to-analog converter.