Title :
Complex Envelope Six-Stages Split-Step PML Algorithm for Open Region Electromagnetic Problems
Author_Institution :
Comput. Eng. Dept., Eastern Mediterranean Univ., Mersin
Abstract :
An implicit complex envelope split-step perfectly matched layer algorithm is presented for modeling open region finite difference time domain (FDTD) problems. The algorithm is based on splitting the FDTD time-step into six stages with an equal time increment of Deltat/6 and it is suitable for band-limited electromagnetic applications. Numerical examples carried out in two dimensions show that the proposed algorithm presents a significant improvement over the other existing six-stages split-step FDTD algorithm for different Courant-Friedrichs-Lewy numbers and for different cell sizes per wavelength.
Keywords :
computational electromagnetics; finite difference time-domain analysis; Courant-Friedrichs-Lewy numbers; FDTD; bandlimited electromagnetic applications; complex envelope six-stages split-step PML algorithm; finite difference time domain; matched layer algorithm; open region electromagnetic problems; Approximation algorithms; Boundary conditions; Electromagnetic modeling; Equations; Finite difference methods; Narrowband; Perfectly matched layers; Stability; Testing; Time domain analysis; Complex envelope finite difference time domain (FDTD); perfectly matched layer (PML); split-step approach;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2008.2005155
