Open Access3D optimised hybrid implicit–explicit FDTD method with suppressed numerical dispersion
Author(s) -
Niu Kaikun,
Huang Zhixiang,
Wu Bo,
Wu Xianliang
Publication year - 2018
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2017.4539
Subject(s) - finite difference time domain method , numerical analysis , finite difference method , mathematics , dispersion (optics) , computer simulation , computer science , algorithm , mathematical analysis , optics , physics , simulation
A 3D optimised hybrid implicit–explicit finite‐difference time‐domain (HIE‐FDTD) method aimed at suppressing the numerical dispersion is proposed. Compared with the original HIE‐FDTD method, the optimised parameters are introduced without costing any additional computational resource. In addition, the proposed algorithm sacrifices Courant–Friedrichs–Lewy condition and just requires a modest amount of reprogramming. The update equations of the proposed HIE‐FDTD method are given and numerical results demonstrate that the proposed method performs better in the numerical dispersion.