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Electric near field measurements and electromagnetic simulations of a bianisotropic metamaterial composed of split ring resonator (SRR) particles

By Hakeim Talleb, Zine Eddine Djeffal, David Lautru, Abdelwaheb Ourir and Victor Fouad Hanna

Abstract

International audienceIn this paper, we confirm that a structure composed only of split ring resonator (SRR) particles can produce backward waves. We present numerical and experimental results for electric near fields that give rise to the backward-wave behaviour. This phenomenon is expressed by an effective wavelength λ eff higher than λ. This structure behaves as a bianisotropic metamaterial when the SRRs reduce simultaneously to electric and magnetic dipoles. We show that the produced asymmetric current distribution in such configuration leads to a backward-wave behaviour. An extraction method based on a homogenization procedure shows a good concordance of the index of refraction between the experimental and simulation results. This method is used to quantify the magnetoelectric parameter

Topics: [ SPI.ELEC ] Engineering Sciences [physics]/Electromagnetism
Publisher: Springer Verlag
Year: 2012
DOI identifier: 10.1007/s00339-012-7102-4
OAI identifier: oai:HAL:hal-00727808v1
Provided by: Hal-Diderot
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