ETRI Journal

  • 제35권5호
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  • Pages.915-918
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  • 2013
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  • 1225-6463(pISSN)
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  • 2233-7326(eISSN)
한국전자통신연구원 (Electronics and Telecommunications Research Institute)
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Accurate FDTD Dispersive Modeling for Concrete Materials

  • Chung, Haejun (Department of Electronics Computer Engineering, Hanyang University, School of Electrical and Computer Engineering, Purdue University) ;
  • Cho, Jeahoon (Department of Electronics Computer Engineering, Hanyang University) ;
  • Ha, Sang-Gyu (Department of Electronics Computer Engineering, Hanyang University) ;
  • Ju, Saehoon (Electromagnetic Wave Research Department, Attached Institute of ETRI) ;
  • Jung, Kyung-Young (Department of Electronics Computer Engineering, Hanyang University)
  • 투고 : 2012.11.06
  • 심사 : 2013.02.27
  • 발행 : 2013.10.31
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초록

This work presents an accurate finite-difference time-domain (FDTD) dispersive modeling of concrete materials with different water/cement ratios in 50 MHz to 1 GHz. A quadratic complex rational function (QCRF) is employed for dispersive modeling of the relative permittivity of concrete materials. To improve the curve fitting of the QCRF model, the Newton iterative method is applied to determine a weighting factor. Numerical examples validate the accuracy of the proposed dispersive FDTD modeling.

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참고문헌

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