FDTD Analysis of Dosimetry in Human Head Model for a Helical Antenna Portable Telephone

Jianqing WANG  Osamu FUJIWARA  

IEICE TRANSACTIONS on Communications   Vol.E83-B   No.3   pp.549-554
Publication Date: 2000/03/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Recent Progress in Electromagnetic Compatibility Technology)
Category: EMC Simulation
electromagnetic dosimetry,  helical antenna,  anatomically realistic head model,  FDTD analysis,  

Full Text: PDF(628.5KB)>>
Buy this Article

This paper presents a dosimetric analysis in an anatomically realistic human head model for a helical antenna portable telephone by using the finite-difference time-domain (FDTD) method. The head model, developed from magnetic resonance imaging (MRI) data of a Japanese adult head, consists of 530 thousand voxels, of 2 mm dimensions, segmented into 15 tissue types. The helical antenna was modeled as a stack of dipoles and loops with an adequate relative weight, whose validity was confirmed by comparing the calculated near magnetic fields with published measured data. SARs are given both for the spatial peak value in the whole head and the averages in various major organs.