Phys. Rev. B 81, 233105 (2010) - Negative refraction by a uniaxial wire medium with suppressed spatial dispersion

Negative refraction by a uniaxial wire medium with suppressed spatial dispersion

Mário G. Silveirinha and Alexander B. Yakovlev

Phys. Rev. B 81, 233105 – Published 24 June 2010

Abstract

Here, we show that a structure formed by an array of metallic wires loaded with metallic patches may enable strong negative refraction even when the conductivity of the metal is very large, e.g., in the microwave regime. It is shown that the composite structure may be regarded as a uniaxial indefinite material loaded with impedance sheets, and that the negative refraction effect may be characterized using homogenization methods.

Received 2 April 2010

DOI:https://doi.org/10.1103/PhysRevB.81.233105

©2010 American Physical Society

Authors & Affiliations

Mário G. Silveirinha^*

Department of Electrical Engineering-Instituto de Telecomunicações, University of Coimbra, 3030 Coimbra, Portugal

Alexander B. Yakovlev^†

Department of Electrical Engineering, University of Mississippi, University, Mississippi 38677, USA

^*mario.silveirinha@co.it.pt
^†yakovlev@olemiss.edu

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Issue

Vol. 81, Iss. 23 — 15 June 2010

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