Open AccessSeveral methods for dealing with metal in FDTD
Author(s) -
Yang Guang-Jie,
Fanmin Kong,
Li Kang,
Mei Liang-Mo
Publication year - 2007
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.56.4252
Subject(s) - finite difference time domain method , convolution (computer science) , overlap–add method , computer science , piecewise linear function , piecewise , integral equation , mathematics , mathematical analysis , optics , physics , fourier transform , fourier analysis , machine learning , artificial neural network , fractional fourier transform
There are important applications of metal in metamaterials. Three methods for dealing with metal in FDTD are analyzed and compared. ADE(auxiliary differential equation method) and PLRC(piecewise linear recursive convolution) have the same numerical result. However, there is a little difference between Sakoda's method and ADE. It is due to the error in calculation of convolution integral with Sakoda's method. Improving the convolution integral with the method used in PLRC, these three methods give the same results.