截面尺寸对矩形巷道中电磁波传播的影响  

Influence of Transverse Dimensions on Electromagnetic Waves Propagation in Rectangular Tunnels

作　　者：孙继平[1] 成凌飞[1] 张长森[2] 

机构地区：[1]中国矿业大学信息工程研究所,北京100083 [2]河南理工大学电气工程系,河南焦作454000

出　　处：《中国矿业大学学报》2005年第5期596-599,共4页Journal of China University of Mining & Technology

基　　金：高等学校博士学科点专项科研基金(20030290019);河南省自然科学基金项目(0411014700)

摘　　要：矩形巷道截面尺寸对电磁波的传播特性有很大的影响.本文在矩形巷道模式匹配理论的基础上,运用软件模拟的方法,具体分析了截面尺寸对不同极化模式下的场强变化的影响.结果表明:在宽度尺寸大于高度尺寸的矩形巷道中,水平极化模式的场强明显高于垂直极化模式,高度尺寸的变化对场强的影响比宽度尺寸的变化要大,这种影响差异随频率的增高和截面尺寸的增大而变小.Transverse dimensions of rectangular tunnels have great influence on electromagnetic waves propagation. Based on the mode matching theory and the software simulation, the influences on field strength in different polarization modes were studied. The results show that in a rectangular tunnel with bigger dimension of the width, field strength of horizontal polarization mode is markedly higher than that of vertical polarization mode, influence of the height change on the field strength is stronger than that of the width change, and the difference of influences decreases with the increasing of frequency and transverse dimension.

关 键 词：矩形巷道 截面尺寸 电磁波 垂直极化 水平极化 

分 类 号：TD65[矿业工程—矿山机电]