用户名: 密码: 验证码:
混响室条件下传输线终端响应及其分布规律研究
详细信息    查看官网全文
摘要
对BLT方程进行修正,使其适用于混响室条件下的特殊电磁环境。并利用修正后的模型对传输线各参数变化情况下其终端的频域和时域响应进行研究,并对其分布规律进行分析。结果表明:传输线终端频域、时域感应电流幅值与端接负载呈反比,与线缆间距、半径等参数呈正比,时域衰减时间与线缆的长度、终端负载呈正比,而与线缆间距、半径无关。且无论终端响应电流的实部还是虚部,都与理想正态分布的累积概率密度一致,服从正态分布,且其幅值服从瑞利分布。而传输线终端负载感应电流幅值的平方则服从指数分布。
The BLT equations were modified to calculate the responses of frequency domain and time domain in a reverberation chamber with the different parameters of transmission lines.The results show that the amplitude of terminal responses are proportion with the width and radius of lines,and the revise proportion with the terminal loads.The attenuation time of responses is proportion with the length and loads,and has no relation with the width and radius.No matter real or image part,the distribution obeys the Normal distribution,and the amplitude obeys the Rayleigh distribution.The square of responses obeys the exponent distribution.
引文
[1]魏明,徐鑫,程二威.频率搅拌混响室的有效性验证[J].高电压技术,2013,39(12):2852-2858.
    [2]李爽,王建国.源搅拌对混响室场均匀性的改善[J].强激光与粒子束,2012,23(10):2724-2728.
    [3]HILL D A.Reciprocity in reverberation chamber measurements[J].IEEE transactions on electromagnetic compatibility,2003,45(1):117-119.
    [4]袁智勇,何金良,曾嵘.电磁兼容试验中的混响室技术[J].高电压技术,2005,31(3):56-57.
    [5]丁坚进,沙斐.EMC混响室电磁场模态研究[J].电波科学学报,2006,20(5):557-560.
    [6]周香,蒋全兴,曹锐.混波室法电缆屏蔽性能测试分析[J].测控技术,2008,10(8):32-35.
    [7]王庆国,贾锐,程二威.混响室连续搅拌工作模式下的辐射抗扰度测试方法[J].高电压技术,2011,37(12):2954-2959.
    [8]LANGLEY R S.A reciprocity approach for computing the response of wiring systems to diffuse electromagnetic fields[J].IEEE Transactions on Electromagnetic Compatibility,2010,52(4):1041-1055.
    [9]JUNQUA I,PARMANTIER J-P,DEGAUQUE P.Field-to-wire coupling in an electrically large cavity:A semianalytic solution[J].IEEE Transactions on Electromagnetic Compatibility,2010,52(4):1034-1040.
    [10]ZHANG H,ZHAO X,LUO Q,et al.An alternative semianalytical/analytical solution to field-to-wire coupling in an electrically large cavity[J].IEEETransactions on Electromagnetic Compatibility,2012,54(5):1153-1160.
    [11]贾锐.混响室漫射场电磁环境及其与线缆的耦合规律研究[D].军械工程学院,2014.

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700