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arXiv · 1710.00044

Efficient GSTC-FDTD Simulation of Dispersive Bianisotropic Metasurface

Yousef Vahabzadeh·Nima Chamanara·Christophe Caloz
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Abstract

We present a simple and efficient Finite-Difference Time-Domain (FDFD) scheme for simulating dispersive (Lorentz-Debye) bianisotropic metasurfaces. This scheme replaces the conventional FDTD update equations by augmented update equations where the effect of the metasurface, positioned at a virtual node (or node plane) in the Yee grid, is accounted for by judiciously selected auxiliary polarization functions, based on the Generalized Sheet Transition Conditions (GSTCs). This scheme is computationally -- time- and memory-wise -- more efficient and easier to implement than a previously reported scheme for dispersive metasurfaces. It is validated in three illustrative examples.

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Yousef Vahabzadeh, Nima Chamanara, Christophe Caloz. 2018-08-21. Efficient GSTC-FDTD Simulation of Dispersive Bianisotropic Metasurface. https://arxiv.org/abs/1710.00044

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