Comparison of rectangular and cylindrical FDTD representations on a ring resonator problem
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CitationAKLEMAN, F., SEVGİ, L. (2008). Comparison of rectangular and cylindrical FDTD representations on a ring resonator problem. Turkish Journal of Electrical Engineering and Computer Sciences, 16 (1), 87-94.ss.
The aim of this paper is to discuss rectangular and cylindrical representations of finite-difference time-domain (FDTD) method over characteristic tests and comparisons. A ring resonator is chosen as a canonical structure and modeled with both rectangular- and cylindrical-FDTD packages. Calibration against analytical exact solution derived in terms of cylindrical Bessel functions is also performed. It is shown that rectangular-FDTD with periodic boundary condition, where the computation domain is reduced, can also be applied in modeling circular structures.