Improving accuracy of FDTD simulations in layered biological tissues

Author

Karwowski, Andrzej

Author_Institution

Dept. of Electron., Silesian Univ. of Technol., Gliwice, Poland

Volume

14

Issue

4

fYear

2004

fDate

4/1/2004 12:00:00 AM

Firstpage

151

Lastpage

152

Abstract

This letter demonstrates a possibility of improving accuracy of the continuous wave steady-state FDTD prediction of the EM field distribution in the layered biological tissues by reducing the numerical dispersion error via appropriate direct modification of the constitutive parameters of the tissues. The attractiveness of the approach lies in that the enhanced accuracy of the FDTD prediction is obtained at the negligible cost of a trivial pre-processing of the material parameters.

Keywords

biological effects of microwaves; biological tissues; electromagnetic fields; finite difference time-domain analysis; inhomogeneous media; EM field distribution; FDTD prediction; FDTD simulations; continuous wave; error reduction; finite-difference time-domain; layered biological tissues; numerical dispersion; steady-state FDTD; Biological system modeling; Biological tissues; Dielectric losses; Difference equations; Finite difference methods; Maxwell equations; Permeability; Permittivity; Propagation constant; Time domain analysis;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2004.827103

Filename

1291447