Focusing of electromagnetic radiation by a flat slab of a crossed wire mesh metamaterial

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• 作者：Tiago A.  ; Morgado ;   ; ^{tiago.morgado@co.it.pt} ; Má ; rio G.  ; Silveirinha  ; ;   ; ^{mario.silveirinha@co.it.pt}
• 关键词：Negative refraction ; Focusing ; Spatial dispersion ; Wire media
• 刊名：Metamaterials
• 出版年：2010
• 出版时间：August-September 2010
• 年：2010
• 卷：4
• 期：2-3
• 页码：112-118
• 全文大小：455 K

文摘

In this work, we numerically demonstrate electromagnetic focusing using a spatially dispersive metamaterial. Based on the phenomenon of broadband all-angle negative refraction by a crossed wire mesh, it is demonstrated that a flat slab of the metamaterial enables partial focusing of p-polarized electromagnetic radiation. The reported results are supported by full wave simulations and by analytical calculations based on homogenization theory.