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Advances in Radio Science An open-access journal of the U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V.
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Volume 6
Adv. Radio Sci., 6, 77–82, 2008
https://doi.org/10.5194/ars-6-77-2008
© Author(s) 2008. This work is distributed under
the Creative Commons Attribution 3.0 License.
Adv. Radio Sci., 6, 77–82, 2008
https://doi.org/10.5194/ars-6-77-2008
© Author(s) 2008. This work is distributed under
the Creative Commons Attribution 3.0 License.

  26 May 2008

26 May 2008

Micro- and macroscopic simulation of periodic metamaterials

R. Schuhmann1, B. Bandlow1, G. Lubkowski2, and T. Weiland2 R. Schuhmann et al.
  • 1Univ. Paderborn, EIM-E, FG Theoretische Elektrotechnik, Warburger Straße 100, 33098 Paderborn, Germany
  • 2TU Darmstadt, Inst. für Theorie Elektromagnetischer Felder, Schloßgartenstraße 8, 64289 Darmstadt, Germany

Abstract. In order to characterize three-dimensional, left-handed metamaterials (LHM) we use electromagnetic field simulations of unit cells. For waves traveling in one of the main directions of the periodic LHM-arrays, the analysis is concentrated on the calculation of global quantities of the unit cells, such as scattering parameters or dispersion diagrams, and a careful interpretation of the results. We show that the concept of equivalent material values – which may be negative in a narrow frequency range – can be validated by large "global" simulations of a wedge structure. We also discuss the limitations of this concept, since in some cases the macroscopic behavior of an LHM cannot be accurately described by equivalent material values.

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