| 异向介质电磁问题的混合模型分析 |
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| 引用本文： | 苏宏煌,张世全,魏兵. 异向介质电磁问题的混合模型分析[J]. 陕西工学院学报, 2011, 0(1): 41-44 |
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| 作者姓名： | 苏宏煌 张世全 魏兵 |
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| 作者单位： | [1]武警工程学院研究生管理大队,陕西西安710086 [2]武警工程学院基础部,陕西西安710086 [3]西安电子科技大学理学院,陕西西安710071 |
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| 基金项目： | 国家自然科学基金资助（61072034）; 武警工程学院研究生创新工程项目（2010S044） |
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| 摘 要： | 建立准确的色散介质本构模型是计算色散介质中波的散射和传播的基础,目前处理色散介质电磁问题通常采用的方法是基于某一种常见的经典模型来进行分析。而实际的色散介质往往是极其复杂的,近似为某一种常见模型对其进行分析计算是不够精确的。结合常见的3种色散介质模型（Debye、Lorentz和Drude模型）,在简单混合模型的基础上提出分段线性混合模型,并通过对异向介质参数进行拟合验证,检验了新型模型的准确性与可行性。
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| 关 键 词： | 色散介质 本构关系 混合模型 异向介质 |
Analysis of a composite model for electromagnetic problems on metamaterials |
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| SU Hong-huang,ZHANG Shi-quan,WEI Bing. Analysis of a composite model for electromagnetic problems on metamaterials[J]. Journal of Shaanxi Institute of Technology, 2011, 0(1): 41-44 |
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| Authors: | SU Hong-huang ZHANG Shi-quan WEI Bing |
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| Affiliation: | 1.The Graduate Management Brigade of Engineering College of CAPF,Xi′an 710086,China;2.Foundation Department,Engineering College of CAPF,Xi′an 710086,China;3.School of Science,Xidian University,Xi′an 710071,China) |
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| Abstract: | Setting up an exact model of constitutive relation is the foundation of analyzing electromagnetic scattering and propagation in dispersive media.Nowadays,the common way for dealing with such problems is based on a certain general classical model,but it is not accurate enough to set up a general model on the basis of only one approximate model for analysis since the natural dispersive media are quite complicated.Based on the simple composite model,a piecewise linear composite model was proposed that combined the three general models（i.e.,Debye,Lorentz and Drude models）.A numerical fitting example for metamaterial verified the correctness and validity of the proposed new model. |
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| Keywords: | dispersive media constitutive relation composite model metamaterials |
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