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Analysis of Electromagnetic Scattering from 2D Curved Metasurfaces using the Extinction Theorem and the Floquet Expansion

This paper proposes a fast and efficient technique for calculating the scattering from curved metasurfaces. Integral equations based on the extinction theorem in conjunction with the Floquet expansions of electromagnetic fields are used. The metasurface is modelled by the Generalized Sheet Transition Conditions (GSTCs). The results of this analysis are verified through comparison with those of numerical full wave analysis.