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

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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A Computation of the Resonant Frequencies using Contour Graph Method in the Dielectric-disc Loaded Cylindrical Cavity Resonators

유전체 디스크가 삽입된 원통형 공동 공진기에서 Contour Graph 방법을 이용한 공진주파수 계산

  • Choi, Hong-Ju (Dept.of Electronics, Information & Communication Eng., Konkuk University) ;
  • Lee, Won-Hui (Dept.of Electronics, Information & Communication Eng., Konkuk University) ;
  • Hur, Jung (Dept.of Electronics, Information & Communication Eng., Konkuk University) ;
  • Choi, Gwang-Je (School of Electrical, Electronic and Computer Eng., Halla Univ.) ;
  • Lee, Sang-Young (Dept.of Physics, Konkuk University)
  • 최홍주 (건국대학교 전자.정보통신공학과) ;
  • 이원희 (건국대학교 전자.정보통신공학과) ;
  • 허정 (건국대학교 전자.정보통신공학과) ;
  • 최광제 (한라대학교 전기.전자.컴퓨터공학부) ;
  • 이상영 (건국대학교 물리학과)
  • Published : 2000.12.01
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Abstract

We described a method to obtain electromagnetic solution and resonant frequencies in dielectric-disc loaded cylindrical cavity resonators. Resonant frequency of dielectric-disc loaded cylindrical cavity resonators is calculated by analyzing the characteristic equation. The characteristic equation is solved by using the ContourPlot graph of Mathematica. As increasing to height of cavity, we compare the calculated resonant frequency with experimental frequency. The calculated results well agree with the experimental ones. The error between them is 0.2% or 1.6% for the case of the top plate is close to or far from concentric dielectric-disc, respectively.

유전체 디스크가 삽입된 원통형 공동 공진기의 전자계 해와 공진주파수를 구하는 방법을 기술하였다. 유전체 디스크가 삽입된 원통형 공동 공진기의 공진주파수는 특성방정식의 해석에 의해 계산된다. 특성방벙식의 해를 Mathematica의 ContourPlot graph를 이용하여 구하였다. 공진기의 높이를 증가시키면서 계산한 공진주파수와 실험 값의 공진주파수를 비교하였다. 계산결과가 실험값과 거의 일치하는 것을 볼 수 있었다. 공진기 윗면과 동심 유전체 디스크 사이가 근접할 경우 0.2%의 공진주파수 오차를 나타내었고, 공진기 윗면과 동심 유전체 디스크 사이가 멀어짐에 따라 최대 1.6%의 공진주파수 오차를 나타내었다.

Keywords

References

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