Time Domain Modeling of Lossy and Dispersive Thin Layers

Author

Antonini, Giulio ; Orlandi, Antonio

Author_Institution

Univ. degli Studi di L´´Aquila, L´´Aquila

Volume

17

Issue

9

fYear

2007

Firstpage

631

Lastpage

633

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;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2007.903432

Filename

4295111