Categorizing Metamaterials by using Equivalent Dielectric Approach
Categorizing Metamaterials by using Equivalent Dielectric Approach
复制标题
使用等效介电方法对超材料进行分类
DOI：
10.1109/apusncursinrsm.2019.8889000
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
H. Rmili
中科院分区：
文献类型：
--
作者：
A. Nasri;R. Mittra;H. Rmili
提出了一种基于等效介电表示对超材料和超表面进行分类的新方法。该过程的第一步是用介电常数张量代替超表面的单位胞，并采用本文所述的方法。该程序是通用的，适用于各向同性和各向异性超表面。当前的一个重要属性是，它使人们能够通过用均匀等效介电材料取代通常具有精细和/或多尺度特征的原始超表面，从而显着减少模拟时间，这些材料比原始超表面更容易在数值上处理。
A new approach for categorizing metamaterials and metasurfaces, which is based on their equivalent dielectric representation, is presented in this paper. The first step in this process is to replace the unit cell of the metasurfaces by a permittivity tensor by using a procedure described in the paper. The procedure is general and is applicable to both isotropic and anisotropic metasurfaces. An important attribute of the present is that it enables one to reduce the simulation time significantly, by replacing the original metasurface, which typically has fine and/or multiscale features, with homogeneous equivalent dielectric materials that are much easier to deal with numerically than is the original metasurface.