自由空间传输在线超材料超透镜的有效介质特性

2009 13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting Pub Date : 2009-03-24 DOI:10.1109/ANTEMURSI.2009.4805073

A. Iyer, G. Eleftheriades

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引用次数: 2

摘要

本文利用模拟和实验数据讨论了多层负折射率在线传输(NRI-TL)超材料超透镜有效介质解释的有效性。通过对不同厚度透镜的模拟数据对比，验证了其提取的有效介电常数和渗透率的唯一性，并对不同入射角的负折射进行了模拟，验证了有效介质透视的正确性。亚衍射成像的实验结果被损耗、分辨率和带宽之间关系的理论所证实。

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Effective-medium properties of a free-space transmission-line metamaterial superlens

This work discusses the validity of the effective-medium interpretation of the multilayer negative-refractive-index transmission-line (NRI-TL) metamaterial superlens using supporting simulation and experimental data. The uniqueness of its extracted effective permittivity and permeability is verified through a comparison of simulation data for lenses of different thicknesses, and simulations of negative refraction for various angles of incidence illustrate that an effective-medium perspective is justified. Experimental results for subdiffraction imaging are corroborated by the theory governing the relationship between loss, resolution, and bandwidth.

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来源期刊

2009 13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting

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