摘要
宽带超外差接收机由于外部使用电磁环境和自身架构的复杂性,其电磁兼容设计已经成为宽带超外差接收机设计的关键环节。本文以工程应用中的一种超外差架构接收机为基础,从外部电磁环境和自身设计两个方面,对电磁干扰的因素进行归类分析,从滤波、屏蔽、接地等设计角度给出了解决方案,该宽带超外差接收机一次性通过了工程任务要求的GJB151A-97标准的电磁兼容实验。
Wideband superheterodyne receiver Due tothe complexity of the external electromagnetic environment and its own architecture,its electromagnetic compatibility design has become a key link in the wideband superheterodyne receiver.This paper is based on a superheterodyne receiver in engineering applications.From the external electromagnetic environment and its own design two aspects,the electromagnetic interference factors are classified analysis,from the filtering,shielding,grounding and other design perspectives to provide a solution,The broadband superheterodyne receiver passed the electromagnetic compatibility test of the GJB151A-97 standard required by the project at one time.
作者
马嵩
MA Song(Southwest China Institute of Electronic Technlogy,Chengdu 610036,China)
出处
《电子设计工程》
2019年第3期189-193,共5页
Electronic Design Engineering
关键词
宽带超外差接收机
电磁兼容
滤波
屏蔽
接地
broadband superheterodyne receivers
electromagnetic compatibility
filtering
shielding
grounding
