摘要
为了研究车载天线系统的电磁兼容性,使用HFSS-IE设计了一种巴仑半波对称振子天线,建立了基于该天线的列车车载天线系统模型。根据微波网络理论分析收发天线的互偶效应,给出收发天线间耦合度表达式。利用HFSS-IE仿真有限空间多天线的耦合度,分析得出满足系统电磁兼容性的天线安装位置。仿真分析列车顶部天线系统的耦合度,得出天线耦合度与天线距离和频率的关系。实验验证了实际列车车载天线布局的正确性,得到的结论可为列车车载天线的优化布局提供参考。
In order to research the electromagnetic compatibility of vehicle-borne antennas system,a Balun half-wave symmetric dipole antenna is designed by HFSS-IE,and the model of train-borne antennas system based on this antenna is established.Based on the theory of microwave network,the mutual coupling effect of antennas is analyzed,and the expression of coupling degree between transmitting antenna and receiving antenna is given.The coupling degree of multi-antennas in finite space is simulated by HFSS-IE,and the proper installation positions of antennas that satisfies the EMC requirements of the system are analyzed.The coupling degree of train-top antennas system is analyzed by simulating,and the relation between coupling degree and both antenna distance and frequency is obtained.The correctness of practical deployment for train-top antennas has been verified by experiment,and related conclusions obtained can be served as references for the optimized deployment of train-borne antennas.
作者
张婷
王绍银
李照泉
李鹏
邢移单
ZHANG Ting;WANG Shaoying;LI Zhaoquan;LI Peng;XING Yidan(Department of Electronic and Information Engineering,Tongji Zhejiang College,Jiaxing 314000)
出处
《微型电脑应用》
2019年第10期64-67,共4页
Microcomputer Applications
基金
纵向课题(Y201636375):浙江省教育厅一般科研项目
关键词
巴仑半波对称振子
耦合度
车载天线
电磁兼容
Balun half-wave symmetric dipole
Coupling degree
Vehicle-borne antennas
Electromagnetic compatibility
