The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Fast and Efficient FDTD Analysis for Microstrip Structures

마이크로스트립 구조에 대한 빠르고 효율적인 FDTD 해석

  • 우종우 (부천대학 정보통신계열(Information & Telecommunication, Bucheon College)) ;
  • 윤현보 (동국대학교 전자공학과(Dept. of Electronic Eng., Dongguk Univ.)
  • Published : 2000.12.01
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Abstract

The full wave method requires a great number of computer memory and lasting long CPU time for the calculation of the discontinuity problems in microstrip structures. While the computation only for the transverse field components at those structures causes the both of time and memory reduction. For the case of the calculating only transverse components for the most of microstrip structures such as low-pass filter, branch coupler and patch antenna the computer memory and running time can be reduced to about 50% and 33%, comparing to the full wave computation. Consequently, the proposed method than that of TEM-mode has an advantages of higher speed and less memory than that of conventional FDTD analysis.

본 논문에서는 마이크로 스트립의 불연속의 해석시 full-wave FDTD 해석방법이 가지고 있는 긴 계산시간과 많은 양의 메모리를 수직성분 계산방법으로 해석함으로서 줄일 수 있음을 보였다. 이를 확인하기 위하여 마이크로 스트립구조를 갖는 저역통과 필터, 패치안테나, branch-line coupler에 적용하고, 그 특성을 해석하였으며, 이를 기존의 full-wave 방법과 계산시간, 메모리 양을 비교하였다. 그 결과, 본 논문에서 제안된 방법은 기존의 방법에 비하여 계산시간과 메모리 양이 각각 약 50%, 33%가 감소됨을 확인할 수 있었다. 이 방법을 통하여 기존의 FDTD에 비하여 좀더 빠르면서, 적은 양의 메모리가 사용되는 해석이 가능하다.

Keywords

References

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