无线网络宽带数字中频接收机射频前端研究

Research of Wideband Digital Intermediate Frequency Receiver's RF Front End

射频前端模块性能关系到整个接收机的性能,宽带数字中频接收机由于它优越的综合性能而受到了广泛的重视。文章介绍了接收机前端的几种拓扑结构及其各自的优缺点,并重点阐述了宽带数字中频接收机的射频前端的方案和工作原理,详细说明了此方案的具体实现并最后给出了部分仿真和测试的结果。

RF front ends is relation to the performance of the whole receiver,wideband Digital Intermediate Frequency Receiver is widely noticed due to its superior integrative performance.This paper firstly discusses some topology of Receiver＇s RF Front End and its respective advantages and disadvantages,and focuses on the program and working principle of wideband Digital Intermediate Frequency Receiver,Then shows the specific implementation of this program in detail on the basis of my present work.Finally gives the results of circuit simulation and some tests.