A Modified High Order FDTD Method Based on Wave Equation

Author

Wang, Shuo ; Shao, Zhenhai ; Wen, Guangjun

Author_Institution

Sch. of Commun. & Inf. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu

Volume

17

Issue

5

fYear

2007

fDate

5/1/2007 12:00:00 AM

Firstpage

316

Lastpage

318

Abstract

A modified (2M, 4) scheme of the high-order two-dimensional finite-difference time-domain (FDTD) method based on wave equation is proposed. It has the fourth-order accuracy in the time domain using the symplectic integrator propagator, and the 2M-order accuracy in the space domain using the discrete singular convolution method. The distinctive features between the modified scheme and the traditional (2M, 4) FDTD based on Yee algorithm are listed as follows. First, the modified scheme is based on the wave equation. Second, the computational region is discretized by uniform mesh rather than the Yee mesh. Third, the modified scheme costs less memory than the Yee algorithm because fewer field elements are involved in computation. Numerical examples are provided to validate its accuracy and effectiveness

Keywords

computational electromagnetics; electromagnetic wave propagation; finite difference time-domain analysis; wave equations; 2D finite-difference time-domain method; 2M-order accuracy; Yee algorithm; discrete singular convolution method; high order FDTD method; high-order finite-difference time-domain method; symplectic integrator propagator; time domain; wave equation; Convolution; Costs; Finite difference methods; Lagrangian functions; Maxwell equations; Partial differential equations; Polynomials; Tellurium; Time domain analysis; Two dimensional displays; Discrete singular convolution (DSC); finite-difference time-domain (FDTD) methods; lagrange polynomial; symplectic integrator propagator (SIP); wave equation;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2007.895685

Filename

4167938