偏置效应对提高射频线性功率放大器线性度和效率的影响

2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC) Pub Date : 2011-04-24 DOI:10.1109/SIECPC.2011.5876971

M. Tayel, Amir Al-Mslmany

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引用次数: 1

摘要

基于双极结晶体管(BJT)建模，对偏置对射频线性功率放大器(LPA)线性度和效率提高的影响进行了理论分析，并在此基础上，利用matlab曲线拟合工具箱建立了射频线性功率放大器(pa)线性度和效率提高的分析模型。该模型简化了传统复杂的射频波压分析方法。通过改变直流偏置随交流输入信号的变化，可以提高射频线性放大器的线性度和效率。

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Biasing effect on improvement of linearity and efficiency of RF linear power amplifier

Based on bipolar junction transistor (BJT) modeling the theoretical analysis of biasing effect on improvement of linearity and efficiency of RF linear power amplifier (LPA) are introduced, according to these analysis and by using matlab curve fitting toolbox an analytical model for improvement of linearity and efficiency of RF linear power amplifiers (PAs) is introduced. This model simplifies the traditionally complicated methods of analysis of RF PA. According to a change of the DC bias as a function of the AC input signal of RF linear PA the linearity and efficiency can be improved.

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来源期刊

2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)

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