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HomeAdvanced Engineering ForumAdvanced Engineering Forum Vol. 17Analysis of Negative Refractive Index Asymmetric...

Analysis of Negative Refractive Index Asymmetric Chiral Metamaterial Based on L Shaped Structure

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Abstract:

An asymmetrical chiral metamaterial at microwave frequency is constructed by using four double-layered L-shaped strips which are rotated by 90⁰ with respect to their adjacent metal strip. These different size strips allows another degree of freedom in the equalizing the orthogonal components of the electric fields at the output interface with 90^o phase difference when the x-polarized wave excites the structure. The proposed structure exhibits the properties of chiral medium such as optical activity and circular dichroism. The L shaped chiral objects can be etched on double side substrate. The effect of structure on different electromagnetic parameter like chirality, optical activity and reflection characteristics are analyzed. Due to the strong chirality the structure posses negative refractive index for either left circularly or right circularly polarized wave. In this paper, a numerical study in the frequency domain of the electromagnetic-wave propagation through these types of structures is achieved by using the commercial software Computer Simulation Technology (CST) microwave studio.

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Advanced Engineering Forum Vol. 17

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Periodical:

Advanced Engineering Forum (Volume 17)

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58-65

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https://doi.org/10.4028/www.scientific.net/AEF.17.58

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Online since:

June 2016

Authors:

Tariq Rahim*, Jia Dong Xu

Keywords:

Chirality, Metamaterial, Negative Refraction, Polarizer Refraction

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© 2016 Trans Tech Publications Ltd. All Rights Reserved

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