放大器的线性化技术  

Linearization Technique of the Amplifier

作　　者：李望[1] 杨文考[2] 

机构地区：[1]渭南师范学院教务处,陕西渭南714000 [2]电子科技大学1603教研室,四川成都610054

出　　处：《渭南师范学院学报》2003年第5期50-52,共3页Journal of Weinan Normal University

摘　　要：本文详细地阐述了功率放大器线性化的基本工作原理 ,并对常见的有源偏置 (activebiasing)、前馈 (feed -for word)、具有非线性元件的线性放大器 (LINC)、负反馈 (negativeforword)、预失真等五种线性化技术的特点、实现方法及使用中的优缺点进行了全面、系统的比较和分析 ,指出利用功率模块合成的放大器线性化程度较高、应用也最普遍 .自适应预失真系统有自己独特的优势 。The basic operation principles of the amplifier linearization are analyzed in detail in the paper. The characteristics, realization, and the advantages and disadvantages in application of commonly occurred active biasing, feed forward, LINC, negative forward and predistortion are compared and summarized comprehensively and systematically. Based on the above analysis, the paper points out that auto adaptive predistroing system is the present trend in the research of Linearization techniques.

关 键 词：功率放大器 非线性失真 线性化 工作原理 有源偏置 前馈 负反馈 预失真 

分 类 号：TN722.75[电子电信—电路与系统]