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Closed-Form Green's Function for the Analysis of Microstrip Structure

마이크로스트립 구조 해석을 위한 Closed-Form 그린 함수

  • Yang, Seung-Woo (School of Electonics, Telecommunication and Computer Engineering, Korea Aerospace University) ;
  • Kim, Sung-Jin (School of Electonics, Telecommunication and Computer Engineering, Korea Aerospace University) ;
  • Kim, Gun-Woo (Samsung Thales Co., Ltd.) ;
  • Lee, Taek-Kyung (School of Electonics, Telecommunication and Computer Engineering, Korea Aerospace University)
  • 양승우 (한국항공대학교 항공전자 및 정보통신공학부) ;
  • 김성진 (한국항공대학교 항공전자 및 정보통신공학부) ;
  • 김건우 (㈜삼성탈레스) ;
  • 이택경 (한국항공대학교 항공전자 및 정보통신공학부)
  • Published : 2008.03.31

Abstract

In the layered medium, the Sommerfeld integral must be evaluated to calculate a space domain Green's function. The real axis integration method provides stable and accurate results over wide ranges of the observation distance and the singnal frequency. But this method has the in efficiency of approximation when the field point z is changed. Also, as the amplitude of z increases, the change of the spectral domain function is more rapidly. Therefore, the approximation is difficult when z becomes larger. In this paper, we propose a method to calculate an accurate closed-form Green's function for microstrip structure by using the closed-loop integration path.

Keywords

Green's Function;Closed-Form;Sommer-Feld;Raim;Pole

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