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Fundamental Properties of Source-Excited Field at the Interface of a 2D EBG Material
Abstract
An efficient numerical scheme was introduced for calculating the field at the interface of an 2D electromagnetic band gap (EBG) or periodic artificial material. The periodic artificial material consisted of a periodic structure made of layers of conducting cylinders. An analysis of the branch point singularities in the complex wavenumber plane allowed for a determination of the physical properties of the field. The calculations confirm the asymptotic field behavior.
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