Open AccessOne‐step leapfrog weakly conditionally stable finite‐difference time‐domain method for body of revolution
Author(s) -
Wang YiGang,
Yi Yun,
Chen Bin,
Chen HaiLin,
Luo Kang
Publication year - 2015
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2015.0210
Subject(s) - finite difference time domain method , stability (learning theory) , singularity , time domain , finite difference method , mathematics , mathematical analysis , numerical stability , computer science , algorithm , numerical analysis , physics , optics , machine learning , computer vision
In this study, a novel one‐step leapfrog weakly conditionally stable finite‐difference time‐domain (WCS‐FDTD) method for body of revolution (BOR) is presented. The singularity of some field components on and adjacent to the axis are solved specially, in accordance with the one‐step leapfrog WCS‐FDTD scheme. The electric and magnetic fields of the proposed method are interlaced half a time step apart and no sub‐time steps are used. The novel method obtains a higher computational efficiency while preserving the properties of the conventional WCS‐BOR‐FDTD method. Its stability condition and dispersion error are presented analytically. Moreover, two numerical examples are given to demonstrate the proposed method.