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Experimental verification of negative refraction in a double cross metamaterial

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Abstract

We report on microwave experiments with a metamaterial composed of pairs of metallic crosses. The transmission properties of the structure show a left-handed transmission band at frequencies around 10.2 GHz. The validity of the negative effective index of refraction is verified by a Snell’s law refraction experiment performed on a wedge-shaped sample of the metamaterial. A second measurement of a similar wedge made from blank FR4 boards is done for reference. The results of the measurements show positive refraction over the whole measured frequency band for the FR4 wedge as well as the refraction of the incident radiation to negative angles within the designated left-handed frequency band for the metamaterial sample.

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Authors and Affiliations

  1. Department of Electrical and Computer Engineering, University of Kaiserslautern, Erwin-Schroedinger Straße, 67663, Kaiserslautern, Germany

    Christian Imhof & Remigius Zengerle

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  1. Christian Imhof
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  2. Remigius Zengerle
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Correspondence to Christian Imhof.

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Imhof, C., Zengerle, R. Experimental verification of negative refraction in a double cross metamaterial. Appl. Phys. A 94, 45–49 (2009). https://doi.org/10.1007/s00339-008-4834-2

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  • DOI: https://doi.org/10.1007/s00339-008-4834-2

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