SAR calculation using FDTD technique with transparent absorbing boundary

Author

Homsup, N. ; Klongdeach, T.

Author_Institution

Dept. of Electr. Eng., Kasetsart Univ., Bangkok, Thailand

Volume

2

fYear

2001

fDate

3-6 Dec. 2001

Firstpage

827

Abstract

In this paper, a FDTD scheme based on a pure scattered-field formulation is introduced to analyze the electromagnetic interaction of a handheld transceiver unit and a human head in personal communications. Orthogonal rectangular grid is used and the computational space domain is terminated using the transparent absorbing boundary (TAB). The specific absorption rates (SAR) in various tissues are calculated and plotted at various cross-sections of the head model. The implemented scheme summarized in the paper is flexible to accommodate modeling of a wide variety of antenna and tissue topologies.

Keywords

biological effects of radiation; biological tissues; finite difference time-domain analysis; health hazards; mobile antennas; mobile radio; transceivers; FDTD technique; antenna-tissue interaction; electromagnetic scattered field; handheld transceiver unit; human head; orthogonal rectangular grid; personal communication; specific absorption rate; transparent absorbing boundary; Boundary conditions; Electromagnetic analysis; Electromagnetic scattering; Finite difference methods; Grid computing; Integral equations; Magnetic fields; Maxwell equations; Time domain analysis; Transceivers;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2001. APMC 2001. 2001 Asia-Pacific

Conference_Location

Taipei, Taiwan

Print_ISBN

0-7803-7138-0

Type

conf

DOI

10.1109/APMC.2001.985497

Filename

985497