| 双层同轴圆柱形磁性体的散射及反射场研究 |
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| 引用本文： | 王华英. 双层同轴圆柱形磁性体的散射及反射场研究[J]. 哈尔滨工业大学学报, 2004, 36(1): 106-108 |
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| 作者姓名： | 王华英 |
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| 作者单位： | 河北工程学院,数理系,河北,邯郸,056038 |
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| 摘 要： | 根据电磁场理论．利用理论解析和数值计算的方法，分析了平面波入射时双层同轴圆柱形磁性体中的磁场、磁通分布及其散射场的特性，提出了改善法向模螺旋天线的建议．数值计算结果表明：在天线器内部填充均匀磁性材料可改善天线性能；当天线器内部为双层磁性介质，且二者磁导率有显著差异时．选择合适的半径可抑制反射场。
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| 关 键 词： | 法向模螺旋天线 圆柱形磁性体 磁通量 散射场 |
| 文章编号： | 0367-6234(2004)01-0106-03 |
| 修稿时间： | 2002-04-18 |
Scattering and reflecting electromagnetic field of coaxial double deck cylindrical magnetic substance |
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| WANG Hua-ying. Scattering and reflecting electromagnetic field of coaxial double deck cylindrical magnetic substance[J]. Journal of Harbin Institute of Technology, 2004, 36(1): 106-108 |
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| Authors: | WANG Hua-ying |
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| Abstract: | The characteristics of magnetic field and magnetic flux distribution and scattering field in the coaxial double-deck cylindrical magnetic substance is studied using the theory of electromagnetic field, and suggestions are made to improve the characteristics of normal helical antenna using theoretical analysis and numerical calculation. One of the suggestions is to increase magnetic flux by filling in the antenna with the symmetrical magnetic substance. The other is to restrain the reflecting field by selecting a suitable radius as filling with the double-deck magnetic substances, which have great differences in permeability. |
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| Keywords: | normal helical antenna cylindrical magnetic substance magnetic flux scattering field |
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