| 列车对梯形隧道中电磁波截止频率的影响 |
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| 引用本文： | 孙继平,张长森. 列车对梯形隧道中电磁波截止频率的影响[J]. 微波学报, 2002, 18(4): 76-79 |
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| 作者姓名： | 孙继平 张长森 |
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| 作者单位： | 中国矿业大学信息工程研究所,北京,100083 |
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| 摘 要： | 空隧道作为波导对电磁波存在着截止频率。列车的存在改变了隧道的截面形状和尺寸 ,从而改变了截止频率。本文应用有限元法研究了煤矿井下巷道中列车的高度、宽度和位置对隧道电磁波截止频率的影响 ,其结果对铁路隧道、公路隧道等有限空间的无线通信具有参考价值
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| 关 键 词： | 列车 梯形隧道 截止频率 有限元法 |
| 文章编号： | 1005-6122(2002)04-0076-04 |
| 修稿时间： | 2002-05-09 |
Effect of Train on the Cutoff Frequency of Trapezoid-Tunnel |
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| SUN Jiping,ZHANG Changsen. Effect of Train on the Cutoff Frequency of Trapezoid-Tunnel[J]. Journal of Microwaves, 2002, 18(4): 76-79 |
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| Authors: | SUN Jiping ZHANG Changsen |
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| Abstract: | A tunnel as a waveguide for electromagnetic wave has a cutoff frequency. The train in the tunnel changes the shape and size of the tunnel's section, so the cutoff frequency is changed. By the use of finite element method. The dependence of the cutoff frequency on the train's height, width and location in the mining laneway is studied. The result is useful to the wireless communication in finite space of railway tunnel, highway tunnel. |
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| Keywords: | Train Trapezoid tunnel Cutoff frequency Finite element method |
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