Title :
Improvement on the numerical dispersion inherent in the ADI-FDTD Method
Author :
Xiao, Fei ; Tang, Xiaohong ; Du, Guohong ; Yan, Yu
Author_Institution :
Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu
Abstract :
In order to improve the performance of the numerical dispersion in the conventional Peaceman-Rachford ADI-FDTD (PR-ADI-FDTD) method, some perturbation items are introduced into the formulation of the PR-ADI-FDTD method. Based on it, a generalized Peaceman-Rachford ADI-FDTD (GPR-ADI-FDTD) method for solving 2-D Maxwell´s equations is presented in this paper. Compared with the conventional PR-ADI-FDTD method, the new GPR-ADI-FDTD method contains several free parameters that can be used to ameliorate its numerical dispersion. In addition, the solution procedure of the GPR-ADI-FDTD method is similar as that of the conventional PR-ADI-FDTD method, in which there is no extra computational complexity involved.
Keywords :
Maxwell equations; computational complexity; finite difference time-domain analysis; 2D Maxwell equations; computational complexity; conventional Peaceman-Rachford ADI-FDTD; numerical dispersion; perturbation items; Computational complexity; Electromagnetic wave polarization; Finite difference methods; Information technology; Maxwell equations; Microwave technology; Microwave theory and techniques; Peace technology; Tellurium; Time domain analysis;
Conference_Titel :
Microwave Conference, 2007. APMC 2007. Asia-Pacific
Conference_Location :
Bangkok
Print_ISBN :
978-1-4244-0748-4
Electronic_ISBN :
978-1-4244-0749-1
DOI :
10.1109/APMC.2007.4554689
