The problem and treatment of DC offsets in FDTD simulations

Citation
Cm. Furse et al., The problem and treatment of DC offsets in FDTD simulations, IEEE ANTENN, 48(8), 2000, pp. 1198-1201
Citations number
2
Categorie Soggetti
Information Tecnology & Communication Systems
Journal title
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
ISSN journal
0018926X → ACNP
Volume
48
Issue
8
Year of publication
2000
Pages
1198 - 1201
Database
ISI
SICI code
0018-926X(200008)48:8<1198:TPATOD>2.0.ZU;2-7
Abstract
This paper discusses the causes of and some solutions to the commonly obser ved problem of de field offsets in finite-difference time-domain (FDTD) sim ulations. DC electric and magnetic field offsets are shown to be valid calc ulated responses of the modeled systems, resulting from interaction between the turn-on characteristics of the source and the properties of the models . The de offsets may be avoided in the time domain by tailoring the source waveforms or in the frequency domain by post-processing the FDTD output.