摘要现今社会研究中,频率资源日益紧张,毫米波频段因为拥有诸多优点,越来越受重视。毫米波功率放大器是毫米波系统发射机中的核心设备,但当输入信号功率增大到一定程度时,放大器就会产生非线性失真。通信行业的迅速发展要求系统有高线性度,因此功率放大器的线性化技术成为近年来研究的重点和趋势。61676
本文主要分析了功率放大器的非线性失真原因,介绍了常用的线性化技术,重点研究了模拟预失真技术在毫米波固态功放中的运用,对肖特基二极管的非线性特性进行了分析,论述了基于肖特基二极管的预失真电路原理。
本文通过调研国内外毫米波线性功率放大器的发展状况和未来的发展趋势,主要根据系统对毫米波固态功放线性度的高要求,针对毫米波固态功放线性化技术进行综述性研究,完成毫米波固态功放线性化技术的实现手段、方法及应用领域,并指出了研究方向和趋势。
毕业论文关键词 毫米波 固态功放 预失真 三阶互调 线性化
毕业设计说明书(论文)外文摘要
Title Studies on Linearization for Millimeter Wave Solid State Power Amplifier
Abstract
Today social studies, the frequency resources are increasingly strained, millimeter wave band because they have many advantages, more and more attention. Millimeter millimeter wave systems in the transmitter power amplifier is the core of the device, when the input signal power increases to a certain extent, the amplifier will produce nonlinear distortion. The rapid development of the communications industry requires a system with high linearity, power amplifier linearization techniques therefore become the focus of recent research and trends.
Millimeter wave has become the new field which is studied for it has many advantangies compared to other waves . This paper mainly studies the linearization techniques of power amplifier in the millimeter wave band.
This paper research the development of millimeter-wave solid state power amplifier and its future trends, and study the techniques for linearization mainly based the system for linearity requirements of millimeter-wave solid state power amplifier.What’s more,I summarize several linearization techniques and their applications.
Keywords millimeter wave(MMW) solid state power amplifier predistortion the third order intermodulation linearization
1 绪论 1
1.1 本课题研究的背景和意义 1
1.2 国内外研究现状 2
1.3 论文的主要内容和组织 4
2 功率放大器概述 5
2.1 功率放大器组成及分类 5
2.1.1 功率放大器结构 5
2.2.2 功率放大器分类及特点 5
2.2.3 各类功率放大器比较 9
2.2 毫米波固态功放 10
2.3 小结 11
3 功率放大器的非线性特性分析 12
3.1 功率放大器的失真特性 12
毫米波固态功放线性化技术研究:http://www.751com.cn/tongxin/lunwen_67534.html