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arXiv · 2110.03953

Interpolation of impedance matrices for varying quasi-periodic boundary conditions in 2D periodic Method of Moments

Denis Tihon·Christophe Craeye·Nilufer Ozdemir·Stafford Withington
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Abstract

Periodic structures can be simulated using the periodic Method of Moments. The quasi-periodicity, i.e. periodicity within a linear phase-shift, is implemented through the use of the periodic Green's function. In this paper, we propose a technique to interpolate the impedance matrix for varying phase-shifts. To improve the accuracy, the contribution of the dominant Floquet modes and a term corresponding to a linear phase-shift are first extracted. The technique is applied to planar geometries, but can be extended to non-planar configurations.

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Denis Tihon, Christophe Craeye, Nilufer Ozdemir, Stafford Withington. 2021-10-08. Interpolation of impedance matrices for varying quasi-periodic boundary conditions in 2D periodic Method of Moments. https://doi.org/10.23919/eucap51087.2021.9411301

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