Accuracy study of FDTD calculations of a dipole antenna irradiating a lossy sphere

Author

Heyvaert, W. ; Ilijasevic, N. ; Martens, L.

Author_Institution

Ghent Univ., Belgium

Volume

2

fYear

1998

fDate

7-12 June 1998

Firstpage

767

Abstract

An accuracy study of electromagnetic calculations for the determination of fields inside the human head of the user of mobile telephone has been performed. Because of the simplicity of the set-up, we used a dipole antenna as radiator and a homogeneous lossy sphere as absorber of the fields. Even in this case we found that grid sizes of maximal 2.5 mm are needed for accurate SAR calculations. The effect of the antenna model and of the uncertainty of dielectric properties has also been studied.

Keywords

biological effects of fields; cellular radio; cordless telephone systems; dipole antennas; electromagnetic fields; finite difference time-domain analysis; human factors; telephone sets; FDTD calculations; accurate SAR calculations; antenna model effect; dielectric properties uncertainty; dipole antenna radiator; electromagnetic calculations; human head; internal fields; lossy sphere irradiation; mobile telephone user; Antenna measurements; Dipole antennas; Electromagnetic fields; Finite difference methods; Frequency measurement; Humans; Safety; Specific absorption rate; Telephony; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1998 IEEE MTT-S International

Conference_Location

Baltimore, MD, USA

ISSN

0149-645X

Print_ISBN

0-7803-4471-5

Type

conf

DOI

10.1109/MWSYM.1998.705103

Filename

705103