| 左手介质覆盖导体圆柱对平面电磁波的散射特性研究 |
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| 引用本文： | 王筠.左手介质覆盖导体圆柱对平面电磁波的散射特性研究[J].培训与研究,2008,25(2):24-26. |
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| 作者姓名： | 王筠 |
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| 作者单位： | 湖北第二师范学院物理与电子工程系,武汉430205 |
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| 摘 要： | 本文通过数值计算的结果,具体分析比较了左手介质覆盖导体圆柱与普通介质覆盖导体圆柱对平面波散射的近场和远场的电磁特性,发现这两种介质层在距离中心轴线约1.570λ￣1.80λ范围内的近场分布有明显不同,左手介质层内的场变化较后者缓慢;而二者对平面波的远场分布是完全一致的,几乎没有差别。
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| 关 键 词： | 左手介质 平面波 方向性系数 |
On Scattering Characteristic of Conductor Cylinder Covered by Left-handed Material to Plane Electromagnetic Wave |
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| WANG Yun.On Scattering Characteristic of Conductor Cylinder Covered by Left-handed Material to Plane Electromagnetic Wave[J].Training and Research-Journal of Hubei College of Education,2008,25(2):24-26. |
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| Authors: | WANG Yun |
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| Institution: | WANG Yun (Department of Physics and Electronic Engineering, Hubei University of Education, Wuhan 430205, China) |
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| Abstract: | This paper compared the scattering characteristic of conductor cylinder covered by left-handed medium to plane electromagnetic wave, with that covered by conventional medium. The conclusion is that there are obviously differences near field distributions in the distance about 1.57λ0-1.Sλ0 to the central axis between this two kinds of medium, which is the field change in the left-handed medium is slower than that in conventional medium, while their far field distributions of plane electromagnetic are in full accord with each other. |
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| Keywords: | a left-handed material eomplanate wave direetivity |
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