The Transactions of the Korean Institute of Electrical Engineers C (대한전기학회논문지:전기물성ㆍ응용부문C)

The Korean Institute of Electrical Engineers (대한전기학회)
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Time Domain Combined Field Integral Equation for Transient Electromagnetic Scattering from Dielectric Body

유전체의 전자기 과도산란 해석을 위한 시간영역 결합 적분방정식

  • 김청수 (호서대 정보통신응용기술학과) ;
  • 안현수 (호서대 정보통신응용기술학과) ;
  • 박재권 (호서대 정보통신응용기술학과) ;
  • 정백호 (호서대 전기정보통신공학부)
  • Published : 2004.12.01
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Abstract

In this paper, we present a time domain combined field integral equation (TD-CFIE) formulation to analyze the transient electromagnetic response from three-dimensional dielectric objects. The solution method in this paper is based on the method of moments (MoM) that involves separate spatial and temporal testing procedures. A set of the RWG (Rao, Wilton, Glisson) functions Is used for spatial expansion of the equivalent electric and magnetic current densities and a combination of RWG and its orthogonal component is used as spatial testing. We also investigate spatial testing procedures for the TD-CFIE to select the proper testing functions that are derived from the Laguerre polynomials. These basis functions are also used for temporal testing. Use of this temporal expansion function characterizing the time variable enables one to handle the time derivative terms in the integral equation and decouples the space-time continuum in an analytic fashion. Numerical results computed by the proposed formulation are presented and compared with the solutions of the frequency domain combined field integral equation (FD-CFIE).

Keywords

References

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