移动通信射频对EMI滤波器干扰的分析及解决办法

Mobile Communication Radio Frequency of EMI Filter Interference Analysis and Solutions

指出了移动通信射频在EMI滤波器上引入干扰的现象及影响。基于高频寄生原因对EMI滤波器的结构重新给出了拓扑,并对其引入射频干扰进行了原因分析。给出了用于干扰场强估计的实测模型与公式。最后提出了针对移动通信射频干扰在EMI滤波器上的屏蔽与消除方法。

This paper points out that the mobile radio communications in the EMI filter is introduced on the interference phenomenon and its influence.Based on the high frequency parasitic causes of EMI filter structure to give the topology,and the introduction of radio frequency interference is analyzed.Given for interference field strength estimation model and formula.Finally put forward the mobile communication radio frequency interference in EMI filter screen and elimination method.