상세정보
학술지
TD-CFIE Formulation for Transient Electromagnetic Scattering from 3-D Dielectric Objects
- 저자
- 이영환, 정백호, Tapan Kumar Sarkar, Mengtao Yuan, Zhong Ji, 박성욱
- 발행일
- 200702
- 출처
- ETRI Journal, v.29 no.1, pp.8-17
- ISSN
- 1225-6463
- 출판사
- 한국전자통신연구원 (ETRI)
- 협약과제
- 06MV2700, 전파 통신설비의 기술기준 연구, 이영환
- 초록
- In this paper, we present a time domain combined field integral equation formulation (TD-CFIE) to analyze the transient electromagnetic response from dielectric objects. The solution method is based on the method of moments which involves separate spatial and temporal testing procedures. A set of the RWG 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 for spatial testing. The time domain unknowns are approximated by a set of orthonormal basis functions derived from the Laguerre polynomials. These basis functions are also used for temporal testing. Use of this temporal expansion function characterizing the time variable makes it possible 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 compared with the solutions of the frequency domain combined field integral equation.
- KSP 제안 키워드
- Dielectric objects, Equation formulation, Integral Equation(IE), Laguerre polynomials, Magnetic Current, Method of moments(MOM), Numerical results, Orthogonal component, RWG Functions, Space time(ST), Spatial and temporal