A Fabrication of From and a Measurement of Relative Permittivity of Illite Found in Young-dong Area

영동산 일라이트의 성형 및 비유전율 측정

  • Lee, Won-Hui (Dept.of Electronics, Information & Communication Eng., Konkuk University) ;
  • Choi, Hong-Ju (Dept.of Electronics, Information & Communication Eng., Konkuk University) ;
  • Koo, Kyung-Wan (Faculty of Information. Electronics Engineering, Youngdong University) ;
  • hur, Jung (Dept.of Electronics, Information & Communication Eng., Konkuk University)
  • 이원희 (건국대학교 전자.정보통신공학과) ;
  • 최홍주 (건국대학교 전자.정보통신공학과) ;
  • 구경완 (영동대학교 정보.전자공학부) ;
  • 허정 (건국대학교 전자.정보통신공학과)
  • Published : 2001.08.01

Abstract

This paper describes measurement of relative permittivity of illite found in young-dong area. A measurement of relative permittivity of the illite was made using cylindrical cavity resonators with a moveable cap. A concentric dielectric-rod inserted the cylindrical cavity resonator and an exact field representation of non-decaying mode of the resonator are introduced for the measurement of relative permittivity. The exact electromagnetic fields in cylindrical cavity with a concentric dielectric rod is analysed. The relative permittivity of dielectric in the cavity is calculated by analyzing a characteristic equation. The characteristic equation is solved by using the ContourPlot graph of Mathematica. We know that the field representation of non-decaying mode is exact. As a result, the relative permittivity of dielectric materials was 7.820 for a sample with binder and 7.894 for a pure sample.

Keywords

References

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