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Systematic split-step perfectly matched layer formulations for modelling dispersive open region finite difference time domain applications

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1 Author(s)
O. Ramadan ; Computer Engineering Department, Eastern Mediterranean University

A systematic unconditionally stable split-step perfectly matched layer absorbing boundary condition formulations are presented for modelling open region dispersive electromagnetic applications. The proposed formulations are based on the incorporating Strang time-splitting approach and the Crank-Nicolson scheme into the complex envelope finite-difference time-domain (CE-FDTD) algorithm. Numerical examples carried out in two-dimensional domains show that the proposed formulations provide better accuracy than the alternating direction implicit FDTD counterpart with a considerable reduction in the central processing unit time requirement.

Published in:

IET Microwaves, Antennas & Propagation  (Volume:5 ,  Issue: 9 )