Title :
General ADI-FDTD Formulations for Multi-Term Dispersive Electromagnetic Applications
Author_Institution :
Comput. Eng. Dept., Eastern Mediterranean Univ., Mersin, Turkey
Abstract :
General formulations of the alternating direction implicit finite difference time domain method are presented for modeling multi-term dispersive electromagnetic applications. The proposed formulations, which are based on the exponential evolution operator scheme, allow modeling different types of frequency dependent materials in the same manner and can be easily incorporated with the nearly perfectly matched layer absorbing boundary conditions to model open region problems. 2-D numerical example is included to show the validity of the proposed formulations.
Keywords :
electromagnetic fields; finite difference time-domain analysis; 2D numerical example; ADI-FDTD formulation; alternating direction implicit finite difference time domain formulation; exponential evolution operator scheme; frequency dependent material; matched layer absorbing boundary condition; multiterm dispersive electromagnetic application; open region problem; Dispersion; Finite difference methods; Mathematical model; Media; Time domain analysis; Alternating direction implicit (ADI); dispersive materials; exponential evolution operator (EEO); finite difference time domain (FDTD); nearly perfectly matched layer (NPML);
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2011.2164240
