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www.adv-radio-sci.net/6/77/2008/
doi:10.5194/ars-6-77-2008
© Author(s) 2008. This work is distributed
under the Creative Commons Attribution 3.0 License.
Micro- and macroscopic simulation of periodic metamaterials
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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Citation: Schuhmann, R., Bandlow, B., Lubkowski, G., and Weiland, T.: Micro- and macroscopic simulation of periodic metamaterials, Adv. Radio Sci., 6, 77-82, doi:10.5194/ars-6-77-2008, 2008. Bibtex EndNote Reference Manager XML
