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Constitutive Parameters of a Metamaterial Slab Retrieved by the Phase Unwrapping Method

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Abstract

The constitutive parameters of a metamaterial slab showing negative refractive index over the 9-12 GHz frequency range are unambiguously retrieved from complex scattering parameters upon using the phase unwrapping method. Such a technique relies on properly adding to the phase of the complex transmission coefficient a stepwise function constructed from critical frequencies at which the phase of the transmission coefficient reaches ∓ π.

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Acknowledgment

One of the authors (JJB) would like to thank CNPq, Brazil, for support.

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Authors and Affiliations

  1. Plasma Laboratory, National Institute for Space Research, São José dos Campos, São Paulo, 12227-010, Brazil

    J. J. Barroso

  2. Department of Electrical and Electronic Engineering, Ataturk University, Erzurum, Turkey

    U. C. Hasar

  3. Department of Electrical and Computer Engineering, Binghamton University, New York, NY, 13902, USA

    U. C. Hasar

Authors
  1. J. J. Barroso
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  2. U. C. Hasar
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Correspondence to J. J. Barroso.

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Barroso, J.J., Hasar, U.C. Constitutive Parameters of a Metamaterial Slab Retrieved by the Phase Unwrapping Method. J Infrared Milli Terahz Waves 33, 237–244 (2012). https://doi.org/10.1007/s10762-011-9869-3

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  • DOI: https://doi.org/10.1007/s10762-011-9869-3

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