Title :
Error between unconditionally stable FDTD methods and conventional FDTD method
Author :
Chen, Jiann-Jong ; Wang, Jiacheng
Author_Institution :
Sch. of Electron. & Inf. Eng., Xi´an Jiaotong Univ.
fDate :
9/28/2006 12:00:00 AM
Abstract :
Both the ADI-FDTD method and the CN-FDTD method can be viewed as approximate factorisation of the conventional FDTD scheme, so the error between these methods and the conventional FDTD method is obtained. It is shown that the error is associated with the time step size, the permittivity and the permeability of the medium, and the spatial variation rate of field. The space discretisation has no relation with the error, which is demonstrated by numerical examples
Keywords :
electromagnetic wave propagation; finite difference time-domain analysis; matrix algebra; permeability; permittivity; approximate factorisation; conventional FDTD method; finite difference time-domain method; permeability; permittivity; time step size; unconditionally stable FDTD methods;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20062011
