摘要
介绍了屏蔽原理,建立了孔缝矩形腔和印刷电路板的物理模型,使用有限元软件仿真分析了孔缝和印刷电路板对矩形腔的屏蔽效能以及谐振频率的影响。对电子产品的设计、电子产品电磁兼容的预测具有重要的理论价值和应用价值。
In this paper,the theroy of shielding is introduced,the models of a rectangular enclosure with aperture and a PCB are built,and a software based on FEM is applied to simulate and analyze the shielding effectiveness and the dominant resonant frequency of a rectangular enclosure with aperture or PCB.It has the theoretical value and applied value in design of electron product and estimate of EMC.
出处
《舰船电子工程》
2009年第11期188-190,共3页
Ship Electronic Engineering
关键词
屏蔽腔
电路板
屏蔽效能
shielding enclosure
PCB
shielding effectiveness
