Title :
Time Domain Modeling of Lossy and Dispersive Thin Layers
Author :
Antonini, Giulio ; Orlandi, Antonio
Author_Institution :
Univ. degli Studi di L´´Aquila, L´´Aquila
Abstract :
In this letter, a new algorithm for surface boundary condition of thin layer is proposed to incorporate the effect of lossy and dispersive media. The 1-D wave equation inside the layer is recast as a Sturm-Lioville problem; the Green´s function is analytically computed and used to relate tangential electric and magnetic fields. The knowledge of poles and residues allows one to obtain a state space realization, suitable for time domain implementation in finite-difference time-domain methods
Keywords :
Green´s function methods; dispersive media; electric fields; finite difference time-domain analysis; magnetic fields; transient analysis; 1-D wave equation; Green´s function; electric fields; finite-difference time-domain methods; lossyand dispersive thin layer; magnetic fields; surface boundary condition; time domain modeling; Boundary conditions; Dispersion; Eigenvalues and eigenfunctions; Finite difference methods; Frequency; Magnetic fields; Material properties; Partial differential equations; Reflection; Time domain analysis; Dispersive media; finite-difference time-domain (FDTD) methods; lossy; transient analysis;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2007.903432
