高速电路PCB板中电磁干扰的研究

Research of EMI for the High-Speed Circuit PCB

结合设计印制电路板的实际经验 ,首先介绍了电磁兼容和电磁干扰 ,其次分析了高速电路PCB设计中产生电磁干扰的主要原因 ,最后提出了防止和抑制电磁干扰的方法以及提高电磁兼容性的具体措施。

This paper maily analuses major factors of the electro-magnetic compatibility in designing high-speed circuit PCB through integrating practical experience. First, the electro-magnetic compatibility and the eletro-magnetic interference are introduced. Second it points out a lot of methods to prevent and restrain the eletro-magnetic interference. Last it takes a lot of concrete measures to enhance the electro-magnetic capatibility.