Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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The Comparison with SAR Patterns of Biological Objects Contacted with Coaxial Waveguide Antenna Using the FDTD Method

  • Koo, S.M. (Department of Radio Communication, Doowon Technical College) ;
  • Kwon, K.H. (Department of Electronics, Kyungpook National University) ;
  • Lee, C.W. (Department of Electronics, Kyungpook National University) ;
  • Won, C.H. (Department of Electronics, Kyungpook National University) ;
  • Kim, M.N. (Dept. of Biomedical Engineering, Kyungpook National University Hospital) ;
  • Cho, J.H. (Department of Electronics, Kyungpook National University)
  • Published : 1997.11.28
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Abstract

Noninvasive multifrequency microwave radiometry using coaxial waveguide antenna has been investigated for a homogeneous and our layer human body model. We derived finite-difference time-domain(FDTD) algorithm and equation of MUR and generalized perfectly matched layer(GPML) absorbing boundary conditions(ABCs) in cylindrical coordination. The coupling between coaxial waveguide antenna and a biological object was analyzed by use of the FDTD method using MUR and GPML ABCs to obtain the absorbed power patterns in the media. The specific absorption rates(SAR) distribution which was corresponding to the temperature distribution was calculated in each region by use of the steady-state response in FDTD method. The SAR patterns of FDTD method using MUR ABCs was compared with those of FDTD method using GPML ABCs.

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