Journal of the Institute of Electronics Engineers of Korea TC (대한전자공학회논문지TC)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Accurate Closed-Form Green′s Function for the Analysis of coplanar Waveguides

코플래너 도파로 해석을 위한 정확한 Closed-Form 그린함수

  • Gang, Yeon-Deok (Dept. of Electronic Information Communication Computer Engineering, Hankuk Aviation University) ;
  • Lee, Taek-Gyeong (Dept. of Electronic Information Communication Computer Engineering, Hankuk Aviation University)
  • 강연덕 (한국항공대학교 전자·정보통신·컴퓨터공학부) ;
  • 이택경 (한국항공대학교 전자·정보통신·컴퓨터공학부)
  • Published : 2000.11.01
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Abstract

In the layered medium, infinite Sommerfeld integral must be evaluated to calculate a space domain Green's function. The complex image method and the two-level method provide rapid calculation and accurate solutions in the near-field region. However, in the intermediate and far-field region, the solutions are inaccurate due to the deformation of the sampling contour. In this paper, we propose a method to calculate an accurate closed-form Green's function for coplanar structure by sampling data on the real axis.

평면형 구조에서 공간영역 그린함수를 구하기 위해서는 무한 Sommerfeld 적분을 계산하여야 한다. 무한 적분을 짧은 시간에 계산하기 위한 복소 영상법(complex image method)과 2단계 근사화법(two-level method)은 전원점과 관측점 사이의 거리가 가까운 경우에는 정확하지만, 거리가 멀어지면 오차가 커지게 된 다. 본 논문에서는 실수축 상의 적분경로에서 파수영역 그린함수를 근사화 함으로써 코플래너 도파로 구조에서 기존의 결과에 비해 정확한 closed-form 그린함수를 구하는 방법을 제시하였다.

Keywords

References

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