| 人造左手媒质的特性 |
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| 引用本文： | 许碧惠.人造左手媒质的特性[J].安阳大学学报,2013(6):91-94. |
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| 作者姓名： | 许碧惠 |
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| 作者单位： | 集美大学信息工程学院,福建厦门361021 |
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| 基金项目： | 福建省教育厅科技项目（编号JB11098）. |
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| 摘 要： | 首先说明了左手媒质的介电常数ε和磁导率μ与频率有关，是色散媒质。迄今为止的左手媒质都是人工合成的，一般工作在微波的极小频段，为此，根据已知几种人造左手媒质，讨论了它们的ε、μ的频变模型。并简单分析了左手媒质的电磁特性，以及人造左手媒质的特点及其研究进展。
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| 关 键 词： | 左手媒质 人工合成 周期结构 坡印亭矢量 负折射率 全折射 |
Characteristics of Artificial Left-handed Materials |
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| Authors: | XU Bi-hui |
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| Institution: | XU Bi-hui (Information Engineering College of Jimei University, Xiamen 361021, China) |
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| Abstract: | Firstly it is proved that in left-handed materials both dielectric permittivity and magnetic permeability are related to frequency, left-handed materials are dispersive materials. Till now all of left- handed materials we known are man-made composites, and they work at small frequency band of microwave. So it needs to choose their models of dielectric permittivity and magnetic permeability for different man-made left-handed materials. Then electromagnetic characteristics of left-handed materials are described, and some structures of artificial left-handed materials and recent research on them are introduced. |
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| Keywords: | left-handed materials man-made refractive index total refraction composite periodic structure poynting vector negative |
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