Modeling Human Head at Microwave Frequencies Using Optimized Debye Models and FDTD Method

被引:62
作者
Ireland, David [1 ]
Abbosh, Amin [1 ]
机构
[1] Univ Queensland, Sch Informat Technol & Elect Engn, St Lucia, Qld 4072, Australia
基金
澳大利亚研究理事会;
关键词
Finite differences; microwave imaging; DIELECTRIC-PROPERTIES; BIOLOGICAL TISSUES;
D O I
10.1109/TAP.2013.2242037
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Debye models for tissues found in the human head are presented. The parameters of the Debye models are optimized to measured data of different head tissues. Excellent consistency over the frequency band from 0.1 GHz to 5 GHz is shown with improved accuracy compared to current models using the Cole-Cole approximation. The auxiliary differential-equation based method is used to incorporate the derived models into a finite-difference time-domain program. The validity of the derived models are verified by comparing the fields produced in a realistic 2-D phantom head using a finite-difference time-domain program with the proposed Debye models, and a method of moments solver.
引用
收藏
页码:2352 / 2355
页数:5
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