| 摘要 |
Provided in the present invention is a multiband power amplifier device, allowing for considerations to be given to an increase in efficiency and to a requirement for linearization. The device also comprises a first input terminal, a second input terminal, a first adjustment module, a second adjustment module, a first adder, and a second adder. The first input terminal receives a signal of band f and then outputs to a first digital predistortion module. The second input terminal receives a signal of band f 2 and then outputs to a second digital predistortion module. The first adjustment module adjusts a first signal and then outputs to the first adder. The second adjustment module adjusts a third signal and then outputs to the first adder. The first adder converges the signal adjusted by the second adjustment module and the signal outputted by the first adjustment module and then outputs to a first digital-to-analogue converter. The second adder converges a second signal and a fourth signal and then outputs to a second digital-to-analogue converter. The device allows for improved design performance of a cross-band power amplifier, a reduced number of power amplifier types, and reduced costs. |
