3D optimised hybrid implicit–explicit FDTD method with suppressed numerical dispersion

Kaikun Niu; Zhixiang Huang; Bo Wu; Xianliang Wu

3D optimised hybrid implicit–explicit FDTD method with suppressed numerical dispersion

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Author(s): Kaikun Niu¹ ; Zhixiang Huang¹ ; Bo Wu¹ ; Xianliang Wu¹
- Affiliations: 1: Key Laboratory of Intelligent Computing & Signal Processing, Ministry of Education, Anhui University , Hefei 230601 , People's Republic of China
Source: Volume 54, Issue 6, 22 March 2018, p. 335 – 336
DOI: 10.1049/el.2017.4539 , Print ISSN 0013-5194, Online ISSN 1350-911X

Received 19/12/2017, Published 14/02/2018

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.

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3D optimised hybrid implicit–explicit FDTD method with suppressed numerical dispersion

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