金属对中低速磁浮BTM天线谐振频率影响  

Influence of Metallic Objects on Resonant Frequency of BTM Antennas in Medium-low Speed Maglev Trains

作　　者：牛江涛 孟天旭 Niu Jiangtao;Meng Tianxu(CRSC Research&Design Institute Group Co.,Ltd.,Beijing 100070,China;Beijing Engineering Technology Research Center of Operation Control Systems for High Speed Railways,Beijing 100070,China)

机构地区：[1]北京全路通信信号研究设计院集团有限公司,北京100070 [2]北京市高速铁路运行控制系统工程技术研究中心,北京100070

出　　处：《铁路通信信号工程技术》2023年第1期83-87,共5页Railway Signalling & Communication Engineering

基　　金：北京全路通信信号研究设计院集团有限公司课题项目(2300-K1120003.01)。

摘　　要：应答器传输系统(BaliseTransmissionModule,BTM)用于实现车-地之间的信息交互,与列车的安全运行息息相关。利用三维电磁仿真软件对磁悬浮BTM车载天线进行精细化建模,并对天线周围的金属物质对其谐振频率产生的偏移影响进行仿真分析,最后根据磁悬浮的BTM车载天线的S11参数的实际测试结果,验证仿真模型与仿真结果的有效性。相关研究为现场设备的维护和系统的后续优化研发提供参考。A BTM(Balise Transmission Module) system is used to realize train-ground information interaction, which is closely related to the safe operation of trains. In this paper, the three-dimensional electromagnetic simulation software is used to create an elaborate 3D model of a maglev on-board BTM antenna, and the influence of the metallic substances around the antenna on the offset of its resonant frequency is simulated and analyzed. Finally, according to the test results of S11 parameters of the maglev on-board BTM antenna, the effectiveness of the simulation model and simulation results are verified. The relevant research in this paper provides a reference for the maintenance of field equipment and for the subsequent optimization, research and development of the system.

关 键 词：磁悬浮 BTM车载天线 仿真 测试 

分 类 号：U237[交通运输工程—道路与铁道工程]