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Authors: B. De Deckere, A. Van Londersele, D. De Zutter, D. Vande Ginste
Title: Birefringent dispersive FDTD subgridding scheme
Format: International Journal
Publication date: 7/2016
Journal/Conference/Book: Electronics Letters
Volume(Issue): 52(17) p.1455-1457
DOI: 10.1049/el.2016.1709
Citations: 2 ( - last update: 29/1/2023)
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A novel 2D finite difference time domain (FDTD) subgridding method is proposed, only subject to the Courant limit of the coarse grid. By making μ or ε inside the subgrid dispersive, unconditional stability is induced at the cost of a sparse, implicit set of update equations. By only adding dispersion along preferential directions, it is possible to dramatically reduce the rank of the matrix equation that needs to be solved.

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