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

Tihon, Denis;Craeye, Christophe;Ozdemir, Nilufer;Withington, Stafford
(2021) 15th EuCAP Conference 2021 — Location: Düsseldorf (Germany) (23.March.2021)

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Authors
  • Tihon, DenisCavendish Laboratory, University of Cambridge, Cambridge, UK
    Author
  • Craeye, ChristopheUCLouvain
    Author
  • Ozdemir, NiluferScientific and Technological Research Council of Turkey, Space Technologies Research Institute, Turkey
    Author
  • Withington, StaffordCavendish Laboratory, University of Cambridge, Cambridge, UK
    Author
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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Tihon, D., Craeye, C., Ozdemir, N., & Withington, S. (2021). Interpolation of impedance matrices for varying quasi-periodic boundary conditions in 2D periodic Method of Moments. 15th EuCAP Conference 2021, Düsseldorf (Germany). https://hdl.handle.net/2078.5/223637