An efficient two-dimensional FDTD method for bio-electromagnetic applications

Author

Qiang, Rui ; Wu, Dagang ; Chen, Ji ; Wang, Shumin ; Wilton, Donald ; Kainz, Wolfgang

Author_Institution

Dept. of Electr. & Comput. Eng., Houston Univ., TX

Volume

42

Issue

4

fYear

2006

fDate

4/1/2006 12:00:00 AM

Firstpage

1391

Lastpage

1394

Abstract

We propose an efficient algorithm for the simulation of densely sampled biological objects. This technique is based on an algebraic multi-grid (AMG) accelerated Crank-Nicholson (CN) finite-difference time-domain (FDTD) method. Using this scheme, simulation time step sizes are no longer limited by the Courant-Friedrich-Levy (CFL) number. A practical guideline on how to choose appropriate time-step sizes for accurate bioelectromagnetic applications is also presented. Numerical examples are used to demonstrate the effectiveness of this technique

Keywords

biological effects of fields; biomagnetism; finite difference time-domain analysis; 2D FDTD; Courant-Friedrich-Levy number; accelerated Crank-Nicholson method; algebraic multigrid method; bioelectromagnetic applications; unconditionally stable algorithm; Application software; Biological system modeling; Cellular phones; Computational modeling; Electromagnetic modeling; Finite difference methods; Magnetic resonance imaging; Signal processing algorithms; Spatial resolution; Time domain analysis; Algebraic multi-grid method; FDTD method; bio-electromagnetics; unconditionally stable algorithm;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2006.871947

Filename

1608475