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

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Resonance Characteristics and Radiation Characteristics of a Spherical Patch on a Dielectric Sphere

구형 유전체 위에 있는 구형 패치의 공진 특성과 방사 특성

  • Jeong, Yi-Ru (Dept. of Electronics & Electricity Engineering, Yonsei University) ;
  • Hong, Ic-Pyo (Dept. of Information & Electricity Engineering, Kongju National University) ;
  • Lee, Myung-Gun (Agency for Defense and Development) ;
  • Chun, Hueng-Jae (Dept. of Mechanical Engineering, Yonsei University) ;
  • Yook, Jong-Gwan (Dept. of Electronics & Electricity Engineering, Yonsei University)
  • Received : 2011.08.22
  • Accepted : 2012.01.13
  • Published : 2012.04.30
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Abstract

In this paper, the resonance characteristics and radiation characteristics of a spherical patch on a dielectric sphere are analyzed. Resonance characteristics can be obtained from the resonant frequency and the quality factor. Radiation characteristics can be also analyzed from the E-field in the far region. In order to calculate these parameters, spectral domain analysis method is applied. Algebraic equation can be obtained in spectral domain through Vector Legendre transform pair and Galerkin's method. So, efficient calculation is possible numerically. It is investigated that radius, curvature of a spherical patch, and dielectric constant of a dielectric sphere have an effect on characteristics of a spherical patch.

본 논문에서는 구형 유전체 위에 있는 구형 패치의 전파 특성으로서 공진 특성과 방사 특성을 분석하였다. 공진 주파수와 Q를 계산하여 특정 모드의 공진 특성을 해석하였으며, 원거리에서의 전기장을 계산하여 방사 특성을 해석하였다. 구형 유전체의 해석을 위해 스펙트럴 영역 해석법(spectral domain analysis method)를 적용하였으며, Vector Legendre transform pair와 Galerkin's method를 이용하여 스펙트럴 영역으로 변환한 후 대수식으로 정리하여 효율적인 계산을 할 수 있었으며, 이를 통해 구형 패치의 반지름이나 곡률, 유전체의 특성이 구형 패치의 특성에 미치는 영향을 해석하였다.

Keywords

References

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