高次模下矩形巷道形状因子对电磁波的影响

王旭启

王旭启.高次模下矩形巷道形状因子对电磁波的影响[J].工矿自动化,2019,45(5):68-72.. DOI: 10.13272/j.issn.1671-251x.2018100062
引用本文: 王旭启.高次模下矩形巷道形状因子对电磁波的影响[J].工矿自动化,2019,45(5):68-72.. DOI: 10.13272/j.issn.1671-251x.2018100062
WANG Xuqi. Influence of shape factor of rectangular roadway on electromagnetic waves under high-order mode[J]. Journal of Mine Automation, 2019, 45(5): 68-72. DOI: 10.13272/j.issn.1671-251x.2018100062
Citation: WANG Xuqi. Influence of shape factor of rectangular roadway on electromagnetic waves under high-order mode[J]. Journal of Mine Automation, 2019, 45(5): 68-72. DOI: 10.13272/j.issn.1671-251x.2018100062

高次模下矩形巷道形状因子对电磁波的影响

基金项目: 

国家自然科学基金资助项目(61473237)

陕西省教育厅科研计划项目(14JK2243)

详细信息
  • 中图分类号: TD655

Influence of shape factor of rectangular roadway on electromagnetic waves under high-order mode

  • 摘要: 不同形状的巷道内电磁波的传播特性不同,在不同次模情况下的电磁波传播特性也不相同。在分析电磁波传输理论和多波模理论的基础上,利用计算机对高次模情况下矩形巷道形状因子对电磁波传播衰减的影响进行了仿真研究。仿真结果表明,在矩形巷道形状因子一定时,随着电磁波传输模式的升高,电磁波的衰减越来越大;不同模式时,随着形状因子的增大,电磁波衰减曲线的斜率不变;水平极化模式时,随着形状因子的增大,电磁波的衰减先减小后增大,在形状因子为1.7时,衰减率最小;垂直极化模式时,随着形状因子的增大,衰减曲线也呈现先减小后增大的趋势,在形状因子为0.7时,衰减率最小;在形状因子等于1时,水平极化模式与垂直极化模式对电磁波传播衰减的影响相同,形状因子小于1时,垂直极化模式对电磁波衰减的影响大于水平极化模式,形状因子大于1时,水平极化模式对电磁波传播衰减的影响大于垂直极化模式。
    Abstract: The propagation characteristics of electromagnetic waves in different shape roadway are different, and are also different in different modes. On the basis of analysis of theory of electromagnetic wave transmission and multi-mode theory, the influence of shape factor on electromagnetic waves propagation attenuation in rectangular roadway under high-order mode was researched by computer simulation. The simulation results show that when the shape factor of rectangular roadway is constant, the attenuation of electromagnetic wave increases with increase of electromagnetic wave transmission mode. Under different modes, with the increase of the shape factor, the slope of attenuation curve of electromagnetic wave remains unchanged. In the horizontal polarization mode, the attenuation of electromagnetic wave first decreases and then increase with increase of the shape factor, and the attenuation rate is the smallest when the shape factor is 1.7. In the vertical polarization mode, the attenuation curve also tends to decrease first and then increase with increase of the shape factor, and the attenuation rate is the smallest when the shape factor is 0.7. When the shape factor is equal to 1, the influence of the horizontal polarization and vertical polarization modes on electromagnetic wave propagation attenuation is same. When the shape factor is less than 1, the influence of the vertical polarization mode on the electromagnetic wave attenuation is greater than that of the horizontal polarization mode. And when the shape factor is greater than 1, influence of the horizontal polarization mode on electromagnetic wave propagation attenuation is greater than that of vertical polarization mode.
  • 期刊类型引用(1)

    1. 刘宏,俞华,王伟,孙乃君,成林. 断路器分闸过程中辐射电磁波测试研究. 电子器件. 2021(04): 930-934 . 百度学术

    其他类型引用(3)

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  • 被引次数: 4
出版历程
  • 刊出日期:  2019-05-19

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