Abstract—In this paper, the rotated explicit group method for solution of time domain two dimensional electromagnetic wave propagation is derived using the rotated finite difference approximation. The method is unconditionally stable and provides a significant savings in the computational time compared to the other standard methods of natural ordering.

Index Terms—Maxwell's equation, FDTD, scalar wave equation, crank-nicolson, explicit decoupled group (EDG).

N. M. Nusi is with the College of Engineering, UNITEN, and currently a post graduate student of the Institute for Mathematical Research, UPM, Malaysia (e-mail: mnoraini@uniten.edu.my).
M. Othman is with the Department of Communication Technology and Network and the associate researcher of the Institute for Mathematical Research, UPM, Malaysia (e-mail: mothman@fsktm.upm.edu.my).

Cite: N. M. Nusi and M. Othman, "Rotated Explicit Group FDTD Method for Solving Electromagnetic Wave Propagation," International Journal of Applied Physics and Mathematics  vol. 2, no. 6, pp. 413-416, 2012.