Title :
An Alternating-Direction Implicit FDTD Modeling of Dispersive Media Without Constitutive Relation Splitting
Author :
Pereda, José A. ; González, Oscar ; Grande, Ana ; Vegas, Angel
Author_Institution :
Dept. de Ing. de Comun., Univ. de Cantabria, Santander
Abstract :
In recent years, the alternating-direction implicit finite-difference time-domain (ADI-FDTD) method has been extended to dispersive media. To this end, a constitutive relation is appended to Maxwell´s curl equations. A common feature of all of the existing formulations is that the integration over a full time step, of Maxwell´s equations and the constitutive relation, is split into two sub-steps.
Keywords :
Maxwell equations; dispersive media; finite difference time-domain analysis; radiowave propagation; Crank-Nicolson formulation; Maxwell curl equations; alternating-direction implicit FDTD modeling; constitutive relation splitting; dispersive media; finite-difference time-domain method; plane-wave propagation; Difference equations; Differential equations; Dispersion; Finite difference methods; Frequency domain analysis; Helium; Maxwell equations; Numerical stability; Permittivity; Time domain analysis; Alternating-direction implicit finite-difference time-domain (ADI–FDTD) method; dispersive media;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2008.2005215
