车载单极天线的电磁脉冲响应特性
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摘要
针对车载系统中使用广泛的短波/超短波单极天线,利用CST仿真分析了高空核电磁脉冲对单极天线的耦合响应特性。计算了天线端接的50Ω负载对电磁脉冲的时频域感应电压信号,研究了电压信号随不同的脉冲入射角、不同车顶面积以及天线不同位置的变化规律。仿真结果表明:馈电点响应电压峰值随着入射脉冲电场矢量与水平夹角的增大而增大,随着车顶对入射脉冲的有效反射面积增大而增大。仿真结果对车辆天线布局方案的定制及天线系统电磁脉冲防护器件的选择具有重要的指导意义。
Monopole antenna is widely used as HF/VHF radio in vehicle system.Its response characteristics exposed to high-altitude nuclear electromagnetic pulse(HEMP)is simulated using CST in this paper.The time-domain and frequency-domain response voltages of antenna terminal's 50Ωload are calculated.And its their variation with angle of incidence of electromagnetic pulse,top area of vehicle and antenna position in top surface are explored.The simulation results show that the maximum response voltage at feeding point increases as the increase of the angle between electric field vector of incident pulse and horizontal plane,and the increases of effective reflection area to incident pulse.The simulation results have important guiding significance for the antennas layout and the selection of electromagnetic pulse protection device for the antenna system.
Monopole antenna is widely used as HF/VHF radio in vehicle system.Its response characteristics exposed to high-altitude nuclear electromagnetic pulse(HEMP)is simulated using CST in this paper.The time-domain and frequency-domain response voltages of antenna terminal's 50Ωload are calculated.And its their variation with angle of incidence of electromagnetic pulse,top area of vehicle and antenna position in top surface are explored.The simulation results show that the maximum response voltage at feeding point increases as the increase of the angle between electric field vector of incident pulse and horizontal plane,and the increases of effective reflection area to incident pulse.The simulation results have important guiding significance for the antennas layout and the selection of electromagnetic pulse protection device for the antenna system.
引文
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[9]曹祥玉,高军,曹越胜,等.微波技术与天线[M].西安:西安电子科技大学出版社,2012.(Cao Xiangyu,Gao Jun,Cao Yuesheng,et al.Microwave technology and antenna.Xi’an:Xidian University Press,2012)
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[12]张昕,王锋.电磁脉冲与短波天线耦合特性的研究[J].现代电子技术,2011,34(5):187-189.(Zhang Xin,Wang Feng.Coupling characteristic of electromagnetic pulse and HF antenna.Modern Electronics Technique,2011,34(5):187-189)
[13]谢彦召,王赞基,王群书,等.高空核爆电磁脉冲波形标准及特征分析[J].强激光与粒子束,2003,15(8):781-787.(Xie Yanzhao,Wang Zanji,Wang Qunshu,et al.High altitude nuclear electromagnetic pulse waveform standards:a review.High Power Laser and Particle Beams,2003,15(8):781-787)
[2]Radasky W,Baum C E,Wik M W.Introduction to the special issue on high-power electromagnetics(HPEM)and intentional electromagnetic interference(IEMI)[J].IEEE Trans Electromagnetic Compatibility,2004,46(3):314-321.
[3]朱勇刚,柳永祥,姚富强,等.电磁脉冲对军用电台的耦合研究[C]//军事电子信息学术会议.2006.(Zhu Yonggang,Liu Yong xiang,Yao Fuqiang,et al.Coupling of electromagnetic pulse to military radio[C]//Academic Conference on Military Electronic Information.2006)
[4]甄可龙,吕善伟,张岩.强电磁脉冲对雷达接收机的天线耦合分析[J].河北科技大学学报,2011,32(2):147-151.(Zhen Kelong,LüShanwei,Zhang Yan.Analysis of antenna coupling of intense electromagnetic pulse to radar receiver.Journal of Hebei University of Science&Technology,2011,32(2):147-151)
[5]朱明达.电磁脉冲下螺旋天线瞬态响应的仿真研究[J].信息技术,2009(7):156-158.(Zhu Mingda.Simulation of transient responses of helix antenna under an EMP.Information Technology,2009(7):156-158)
[6]高正,李君利,范佳锦.潜艇天线对核电磁脉冲的响应计算[J].核电子学与探测技术,2005,25(3):312-314.(Gao Zheng,Li Junli,Fan Jiajin.Response of antennas on a submarine to nuclear electromagnetic pulse.Nuclear Electronics&Detection Technology,2005,25(3):312-314)
[7]廖意,魏飞鸣,蔡昆,等.电磁脉冲下通信偶极天线的时域响应快速计算[J].电波科学学报,2014,29(2):248-253.(Liao Yi,Wei Fei ming,Cai Kun,et al.Fast calculation of time-domain response for communication dipole antennas exposed to electromagnetic pulse.Chinese Journal of Radio Science,2014,29(2):248-253)
[8]薛明峰.电磁脉冲作用下复杂金属腔体和天线的时域响应特性研究[D].上海:上海交通大学,2008:44-63.(Xue Mingfeng.Investigation on time-domain characteristics of complex metallic enclosures and antennas in the presence of electromagnetic pulse.Shanghai:Shanghai Jiao Tong University,2008:44-63)
[9]曹祥玉,高军,曹越胜,等.微波技术与天线[M].西安:西安电子科技大学出版社,2012.(Cao Xiangyu,Gao Jun,Cao Yuesheng,et al.Microwave technology and antenna.Xi’an:Xidian University Press,2012)
[10]俞集辉,马晓雷.车载鞭天线电磁特性及耦合度的仿真研究[J].计算机仿真,2008,25(1):281-284.(Yu Jihui,Ma Xiaolei.Simulation of electromagnetic character and coupling degree of vehicle whip antennas.Computer Simulation,2008,25(1):281-284)
[11]杨雨川,谭吉春,盛定仪,等.导体板上单极天线对电磁脉冲响应特性的矩量法分析[J].强激光与粒子束,2008,20(4):649-652.(Yang Yuchuan,Tan Jichun,Sheng Dingyi,et al.Response characteristics and protection techniques of monopole on conductive plane exposed to electromagnetic pulse.High Power Laser and Particle Beams,2008,20(4):649-652)
[12]张昕,王锋.电磁脉冲与短波天线耦合特性的研究[J].现代电子技术,2011,34(5):187-189.(Zhang Xin,Wang Feng.Coupling characteristic of electromagnetic pulse and HF antenna.Modern Electronics Technique,2011,34(5):187-189)
[13]谢彦召,王赞基,王群书,等.高空核爆电磁脉冲波形标准及特征分析[J].强激光与粒子束,2003,15(8):781-787.(Xie Yanzhao,Wang Zanji,Wang Qunshu,et al.High altitude nuclear electromagnetic pulse waveform standards:a review.High Power Laser and Particle Beams,2003,15(8):781-787)