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Integral-Equation Analysis of 3-D Metallic Objects Arranged in 2-D Lattices Using the Ewald Transformation

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5 Author(s)
Stevanovic, I. ; Lab. d''Electromagn. et d''Acoust., Ecole Polytech. Fed. de Lausanne ; Crespo-Valero, P. ; Blagovic, K. ; Bongard, F.
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We present a space-domain integral-equation method for the analysis of periodic structures formed by three-dimensional (3-D) metallic objects arranged in a general skewed two-dimensional lattice. The computation of the space-domain Green's function is accelerated using the Ewald transformation. The method is validated on several periodic structures ranging from planar frequency-selective surfaces to 3-D photonic crystals and metamaterials. For these structures, our technique shows a clear advantage in terms of computational speed when compared with available commercial softwares

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:54 ,  Issue: 10 )