| 异向介质平板对高斯波传播的影响 |
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| 引用本文： | 陈红胜,冉立新,皇甫江涛,章献民,陈抗生,孔金瓯.异向介质平板对高斯波传播的影响[J].浙江大学学报(自然科学版 ),2004,38(10):1380-1382,1390. |
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| 作者姓名： | 陈红胜 冉立新 皇甫江涛 章献民 陈抗生 孔金瓯 |
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| 作者单位： | 浙江大学信息与电子工程学系国际电磁学院浙江大学分院，浙江大学信息与电子工程学系国际电磁学院浙江大学分院，浙江大学信息与电子工程学系国际电磁学院浙江大学分院，浙江大学信息与电子工程学系国际电磁学院浙江大学分院，浙江大学信息与电子工程学系国际电磁学院浙江大学分院，浙江大学信息与电子工程学系国际电磁学院浙江大学分院 浙江杭州310027，浙江杭州310027，浙江杭州310027，浙江杭州310027，浙江杭州310027，浙江杭州310027 |
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| 摘 要： | 为了研究异向介质的电磁特性,建立了高斯波束入射到异向介质平板模型.用数值模拟的方法给出了异向介质平板内外部电磁场的分布.异向介质采用周期排列的金属棒与开路环谐振器的阵列结构,工作在14.2 GHz的频率上,对应的折射率为n=-0.71.模拟结果表明,异向介质平板对垂直入射的高斯波具有会聚的作用,对倾斜入射的高斯波在负方向上将产生比其他具有正折射率的平板更大的波束位移.
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| 关 键 词： | 异向介质 负折射率 高斯波束 |
| 文章编号： | 1008-973X(2004)10-1380-03 |
Impact of the metamaterial slab on the propagation of a Gaussian beam |
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| CHEN Hong-sheng,RAN Li-xin,HUANGFU Jiang-tao,ZHANG Xian-min,CHEN Kang-sheng,KONG Jin-au.Impact of the metamaterial slab on the propagation of a Gaussian beam[J].Journal of Zhejiang University(Engineering Science),2004,38(10):1380-1382,1390. |
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| Authors: | CHEN Hong-sheng RAN Li-xin HUANGFU Jiang-tao ZHANG Xian-min CHEN Kang-sheng KONG Jin-au |
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| Abstract: | In order to study the electromagnetic properties of left-handed material, a Gaussian beam incident on a left-handed metamaterial slab was constructed. The numerical solutions to the electric and magnetic fields inside and outside the slab were presented. The metamaterial was realized with a periodic arrangement of rods and split-ring resonators,and the operating frequency was at 14.2 GHz, corresponding to a (refraction) index of -0.71. The results show that the metamaterial slab can focus the normal incident Gaussian beam; and that the displacement of an oblique incident beam provoked by such metamaterial slab is larger than that provoked by a slab with positive refraction index in the negative direction. |
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| Keywords: | left-handed material negative refraction index Gaussian beam |
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