文档介绍：分类号密级
U D C 编号10486
武汉大学
硕士学位论文

研究生姓名:
学号:
指导教师姓名、职称:
学科、专业名称:电子与通信工程
研究方向: 雷达接收机
二零一二年四月
Dissertation Submitted to
Wuhan University
Design and implementation of receiver analog front-end
By
Jinhua Wang
Dissertation Supervisor: Professor Yunhua Rao
School of Electronic Information
Wuhan University
Wuhan, Hubei,
April, 2012
摘要
由于射频部分要处理的是宽带的高频模拟信号,如何实现高频时的匹配和满足实际的性能指标是本课题设计的难点,,基于max2829的RF方案,完成了模拟前端的具体实现,最后结合项目实际需要对超外差二次变频方案进行了设计和仿真。
首先,、意义及其研究现状。
其次,,介绍了常用接收机结构,分析了这些接收机的优缺点及其适用场合,然后介绍了接收机模拟前端的主要技术指标。
再次,根据常用接收机的结构和实际的设计需要,,在理论上分析了所采用的接收机的性能指标,并实现了接收机模拟前端和对模拟前端的调试。测试结果表明该系统基本满足了基带对模拟前端的要求。
最后,结合超外差二次变频接收机结构的优点,对超外差二次变频方案进行设计与仿真,对关键模块作了深入的理论分析,给出了其性能参数及其设计方法,并使用ADS2011对接收机系统中的关键模块进行了设计和仿真。
关键词:接收机模拟前端零中频低噪声放大器
ABSTRACT
As the RF section to deal with is the broadband high-frequency analog signal, how get to match in the high frequencies and to meet the actual performance is the difficulty of the design of this topic. we choose the zero-IF architecture receiver by max2829 RF program, plete the concrete realization of the analog front-end for the wideband receiver analog front-end for band,at last,we design and simulate the super heterodyne double conversion program according the actual needs of porject.
Firstly, the paper introduces a brief background、significance of the band receivers and research of receiver。
Secondly, based on the band receiver technology, a brief introduction to mon receiver structure, the paper analyze the advantages and disadvantages of possible applications of these receivers, and then describes the main technical indicators of the receiver analog front-end.
Again, according to mon receiver structure and design needs, given the structure of the broadband receiver analog front-end of this article band, and the paper theoretically analyze the performance of t