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Design and Implementation of Linearization Power Amplifier on Software Defined Radio

Author: FuRuiGai
Tutor: ZengXingZuo；HanJun
School: Xi'an University of Electronic Science and Technology
Course: Electronics and Communications
Keywords: software defined radio power amplifier linearization feed-forward
CLC: TN722.75
Type: Master's thesis
Year: 2007
Downloads: 43
Quote: 1
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Abstract


Along with the rapid development of the software defined radio technology, it’s important that the linearization method of power amplifier should be studyed, which is the serious component of nonlineary in the communication system. The design and implementation of 1600MHz feedforward linearization power amplifier are studied and analysed in the paper.First, the paper introduces the nonlineary distortion and the displaying method of the power amplifier. Then, it introduces four linearization techniques:feedback、predistorter、feed-forward. This paper emphasizes on the work process and performance of the feedforward linearization power amplifier. And three adaptive ways are proposed aiming at the the deterioration of the performance caused by the working environment. In the last the 1600MHz feedforward linearization power amplifier is designed. After testing and debugging, the result meets with what we expect. The IM3 is-31.67dBc.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Basic electronic circuits > Amplification technology,the amplifier > Amplifier > Amplifiers: the role of sub- > Power amplifier
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