We present a fourth order frequency domain finite difference approach (FDFD) in curvilinear coordinates for the computation of the modes of sectorial and ridged elliptic waveguides. The use of an elliptic mesh allows to avoid usual the staircase approximations of the boundary, providing a very effective and accurate procedure.
A fourth order FDFD approach for the analysis of sectorial elliptic waveguides
FANTI, ALESSANDRO;DEIAS, LUISA;CASULA, GIOVANNI ANDREA;MONTISCI, GIORGIO
2015-01-01
Abstract
We present a fourth order frequency domain finite difference approach (FDFD) in curvilinear coordinates for the computation of the modes of sectorial and ridged elliptic waveguides. The use of an elliptic mesh allows to avoid usual the staircase approximations of the boundary, providing a very effective and accurate procedure.
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