Patent ID: 8548402
Filing Date: 2013-10-01
Classification: H03F

Abstract:
1. A power amplification device, comprising: a power control module configured to perform power adjusting on an input signal; a power amplification module configured to perform power amplification on the signal subjected to the power adjusting by the power control module; and a pre-distortion module configured to compensate for nonlinear characteristic of the power amplification module; wherein said power control module is coupled between said pre-distortion module and said power amplification module in series; alternatively, said pre-distortion module is coupled between said power control module and said power amplification module in series; wherein said power control module performs power adjusting on the input signal according to a power adjusting coefficient only upon startup of said power amplification device; wherein said pre-distortion module performs pre-distortion self-adaptive algorithm searching in accordance with an output signal of said power amplification module, performs pre-distortion processing on the input signal based on a searched coefficient, and sends a power adjusting notification to said power control module when a convergence condition is met; and wherein said power control module comprises: