含贯通导体腔体电磁耦合的混合计算模型（英文）  

Hybrid Model to Evaluate Electromagnetic Irradiation Coupling of Enclosure via Wire Penetration

作　　者：李新峰 魏光辉 潘晓东 李凯 

机构地区：[1]Institute of Electrostatic and Electromagnetic Protection,Mechanical Engineering College

出　　处：《高电压技术》2014年第9期2827-2832,共6页High Voltage Engineering

基　　金：Project supported by National Basic Research Program of China(973 Program);Arm Pre-Research Program(51333030101),National Natural Science Foundation of China(61372040)

摘　　要：For studying the coupling effect of electromagnetic irradiation to rectangular enclosure with wire penetration,a new hybrid model is proposed to determine the shielding effectiveness of the enclosure.This model based on rectangular-enclosure equivalent circuit regards the penetrating wire as a monopole antenna,and the frequency-domain results of calculation using this model match with that of computer simulation technology(CST)Microwave Studio.Meanwhile,this new model requires far less computation than traditional methods:3 s for one sample on an average personal computer.Based on the presented model,the relationships between enclosure volume,external length of wire penetration,internal length of wire penetration,and shielding effectiveness are analyzed.In the frequency range from 100 MHz to1 000 MHz,when keeping the length of penetrating wire unchanged,the shielding effectiveness of an enclosure at its center point increases with the cavity volume.There is no obvious effect from the external length of penetrating wire on the shielding effectiveness.If the external length of a penetrating wire is 8 cm unchanged,the shielding effectiveness of the penetrated enclosure at its center point declines with the increase of internal length of the penetrating wire.For studying the coupling effect of electromagnetic irradiation to rectangular enclosure with wire penetration,a new hybrid model is proposed to determine the shielding effectiveness of the enclosure.This model based on rectangular-enclosure equivalent circuit regards the penetrating wire as a monopole antenna,and the frequency-domain results of calculation using this model match with that of computer simulation technology（CST）Microwave Studio.Meanwhile,this new model requires far less computation than traditional methods：3 s for one sample on an average personal computer.Based on the presented model,the relationships between enclosure volume,external length of wire penetration,internal length of wire penetration,and shielding effectiveness are analyzed.In the frequency range from 100 MHz to1 000 MHz,when keeping the length of penetrating wire unchanged,the shielding effectiveness of an enclosure at its center point increases with the cavity volume.There is no obvious effect from the external length of penetrating wire on the shielding effectiveness.If the external length of a penetrating wire is 8 cm unchanged,the shielding effectiveness of the penetrated enclosure at its center point declines with the increase of internal length of the penetrating wire.

关 键 词：含贯通导体 电磁耦合 混合计算 计算模型 

分 类 号：TM15[电气工程—电工理论与新技术]