矩形巷道中对称振子天线辐射特性的研究  

Research on the radiation characteristics of symmetrical dipole antenna in rectangular tunnel

作　　者：孙继平[1] 高美凤[1] 

机构地区：[1]中国矿业大学(北京)煤炭资源与安全开采国家重点实验室,北京100083

出　　处：《煤炭学报》2010年第12期2121-2124,共4页Journal of China Coal Society

基　　金：教育部高等学校博士学科点专项科研基金资助项目(200802900008)

摘　　要：建立了分析煤矿井下巷道内对称振子天线的积分方程,计算分析了矩形巷道中对称振子天线的辐射场模式,给出了传输模式的归一化传输功率分布。计算结果表明:矩形巷道中含有对称振子天线时,电磁波是多模传输的,无论天线处于巷道的什么位置,TE模的总功率均占80%以上,且TE模的功率最大模式的指数变化不大。The integral equation of the symmetrical dipole antenna in coal mine was established. The radiation modes of the symmetrical dipole antenna in rectangular tunnel was analyzed, and the unitary transmission powers distributing of electromagnetic wave transmission mode was presented. The results show that the electromagnetic wave propagates in muhimodc when the symmetrical dipole antenna is in rectangular tunnel. No matter what position the antenna is in the tunnel ,the TE modes power is for more than 80% , and the TE maximum power model index changes a little.

关 键 词：矩形巷道 辐射特性 电磁波传输模 传输功率 

分 类 号：TD655[矿业工程—矿山机电]