| 地层各向异性对极低频水平低架天线的影响 |
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| 引用本文： | 潘威炎,张红旗. 地层各向异性对极低频水平低架天线的影响[J]. 电波科学学报, 2005, 20(2): 137-142,159 |
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| 作者姓名： | 潘威炎 张红旗 |
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| 作者单位： | 中国电波传播研究所青岛分所,山东,青岛,266071;中国电波传播研究所青岛分所,山东,青岛,266071 |
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| 摘 要： | 讨论了当极低频水平低架天线场地周围的地层导电率呈现各向异性时对水平低架天线方向性和发射效率的影响.分析了导电率各向异性条件下的地层表面阻抗,导出了极低频电波在地-电离层波导中传播的模方程,给出了典型条件下各向异性的导电率参数对TM0波模在各个方向上的相速和衰减率影响的规律及导电率各向异性和各向同性情况下天线方向图的比较,得出了各向异性的导电率对天线方向图和发射效率有较大影响.对设计极低频天线及其工程建设具有理论指导意义.
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| 关 键 词： | 极低频 各向异性 地一电离层波导 水平天线 TM波 |
| 文章编号： | 1005-0388(2005)02-0137-07 |
Influence of anisotropic earth's conductivity upon radiation pattern and efficiency of horizontal ELF antenna |
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| PAN Wei-yan,ZHANG Hong-qi. Influence of anisotropic earth's conductivity upon radiation pattern and efficiency of horizontal ELF antenna[J]. Chinese Journal of Radio Science, 2005, 20(2): 137-142,159 |
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| Authors: | PAN Wei-yan ZHANG Hong-qi |
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| Abstract: | In this paper, the surface impedance-matrix of the earth with an anisotropic conductivity is discussed, the propagation mode equation of ELF wave in the earth-ionosphere wave guide is derived, the expressions of the electromagnetic field in the earth-ionosphere wave guide generated by ELF horizontal antenna is obta ined, and the influence of the anisotropic earth conductivity upon the radiation pattern and efficiency of the ELF antenna is calculated and analyzed. |
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| Keywords: | ELF anisotropic earth-ionosphere wave guide borizontal antenna TM wave |
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