机箱开孔位置对无线电辐射骚扰的影响  

Influence of Position of Aperture in a Rectangular Enclosure on the Radio Disturbance

作　　者：周雷[1] 邓凌翔[1] 陈道升[1] 李保婷[1] 吴平宏 

机构地区：[1]江苏省计量科学研究院,南京210007

出　　处：《微波学报》2011年第4期77-80,共4页Journal of Microwaves

基　　金：国家质检总局科技计划项目(2007QK121)

摘　　要：针对电脑机箱开孔产生的电磁辐射骚扰之一,建立了矩形机箱模式函数,并通过求解相应的TM场和TE场方程得到各种模式的电场分布。理论分析与实验及仿真结果表明,并行口和串行口开孔易导致电磁辐射骚扰,且在机箱yz面中心位置开孔引起的辐射骚扰最强,从而为辐射骚扰抑制提供理论依据。Apertures on the rectangular enclosure of PC are the main channels of radio disturbance radiated by PC.In this work,mode function of rectangular enclosure is established,and electric field distribution of different modes is got by solving TM and TE field equations.Theoretical derivation and experimental results both show that serial port and collateral port could influence radio disturbance of PC,while the aperture in the middle of yz plane will cause worst radio disturbance.So,reasonable choice of the position of serial port and collateral port will help to suppress the radio disturbance of PC.

关 键 词：开孔 开孔位置 矩形机箱 屏蔽 

分 类 号：TP303.2[自动化与计算机技术—计算机系统结构] TN07[自动化与计算机技术—计算机科学与技术]