Investigation of static and quasi-static fields inherent to the pulsed FDTD method

Author

Pontalti, Rolando ; Nadobny, Jacek ; Wust, Peter ; Vaccari, Alessandro ; Sullivan, Dennis

Author_Institution

Ist. Trentino di Cultura, Trento, Italy

Volume

50

Issue

8

fYear

2002

fDate

8/1/2002 12:00:00 AM

Firstpage

2022

Lastpage

2025

Abstract

Demonstrates that trailing dc offsets, which can affect E- or H-fields in finite-difference time-domain simulations, are physically correct static solutions of Maxwell´s equations instead of being numerically induced artifacts. It is shown that they are present on the grid when sources are used, which generates nondecaying charges. Static solutions are investigated by exciting electric and magnetic dipoles models with suitable waveforms.

Keywords

Maxwell equations; boundary-value problems; electromagnetic fields; electromagnetic wave propagation; finite difference time-domain analysis; Maxwell´s equations; electric dipoles models; finite-difference time-domain simulations; magnetic dipoles models; nondecaying charges; physically correct static solutions; pulsed FDTD method; quasi-static fields; static fields; trailing dc offsets; Antennas and propagation; Dielectrics; Electromagnetic analysis; Electromagnetic propagation; Electromagnetic scattering; Finite difference methods; Integral equations; Optimized production technology; Slabs; Time domain analysis;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/TMTT.2002.801381

Filename

1022050