孔缝腔体内传输线负载上最大感应电流的研究  

Analysis of the maximum induced current of transmission line in cavity with apertures

作　　者：顾长青[1] 王斌[1] 李茁[1] 牛臻弋[1] 曹丽霞[1] 林志斌[1] 

机构地区：[1]南京航空航天大学电子信息工程学院,江苏南京210016

出　　处：《电波科学学报》2015年第2期328-332,共5页Chinese Journal of Radio Science

基　　金：国家自然科学基金青年基金(No.61102033);中央高校基本科研业务费专项(NJ20140009);江苏省高校优势学科建设工程资助项目

摘　　要：应用多端口网络理论,把孔缝屏蔽腔和腔内传输线一起等效成多天线系统,基于天线的互易定理,提出了快速预测孔缝屏蔽腔内多导体传输线负载上的最大感应电流的方法.由于避免了孔缝屏蔽腔内传输线负载上感应电流的直接全波分析,计算效率显著提高.文中计算了矩形屏蔽机箱上开孔尺寸与形状、机箱大小、传输线在机箱内位置等参数改变下屏蔽机箱内传输线负载上的最大感应电流响应.与直接全波仿真结果比较,验证了方法的有效性.A novel method using multi-port network theory,and considering the transmission line in cavity with apertures as an multi-antenna system is proposed based on reciprocity theory to fast predict the maximum induced current at the ports of the transmission line in cavity.Since this method does not use the direct full-wave simulation algorithm to calculate the induced current,the calculation efficiency is obviously improved.The maximum induced current of different situation is discussed.The result is compared to the direct full-wave simulation method,and proves that this method is feasible.

关 键 词：孔缝屏蔽腔 传输线 互易定理 最大感应电流 

分 类 号：TN811[电子电信—信息与通信工程]