Computer Simulation on the Correlations between the Microwave Quality factor and the Pores inside the Dielectrics

마이크로파 유전체의 내부 기공과 마이크로파 품질계수의 상관관계에 대한 컴퓨터 시뮬레이션

  • 박재환 (한국과학기술연구원 재료공학부)
  • Published : 2003.04.01


Effects of pores on the microwave properties in microwave dielectric ceramics were studied by a computer simulation. Scattering matrix S$\_$21/ obtained from the network analyzer was compared to the S$\_$21/ obtained from the simulation. From electric field distribution, the dominant resonant TE$\_$01$\delta$/ mode could be easily determined. The effects of the porosity and pore size inside the dielectrics on the microwave properties were investigated by the HFSS simulation. When the total pore volume remains constantly, the quality factor decreased as the pore size Increases. As the total pore volume of the dielectrics increased. quality factor decreased.


Porosity;Microwave dielectrics;Simulation;Cavity resonator;Qualify factor


  1. J. Am. Ceram. Soc. v.83 no.1 Microwave dielectric loss of titanium oxide A. Templeton;X. Wang;S. J. Penn;S. J. Webb;L. F. Cohen;N. M. Alford
  2. A Dielectric Resonator Method of Measuring Inductive Trans v.MTT-8 B. W. Hakki;P.D. Coleman
  3. IRE. 6.0 user's manual HFSS VCapacities in the Milimeter Range
  4. Proc. of Sixth IEEE Int. Symp. on Applications of Ferroelectrics High frequency dielectric and thier applications K. Wakino
  5. 전기전자재료학회논문지 v.12 no.10 초전도 자성체 / 유한요소법에 의한 1.9 GHz 대 유전체 일체형 필터의 설계 박창엽;강종윤;최지원;윤석진;김현재
  6. Numerical Techniques in Electromagnetics Matthew N. O. Sadiku
  7. Bull. Chem. Soc. Jpn. v.56 Distribution of calcium ion in the crystal of $MgTiO_3-CaTiO_3$ system E. Nagata;J. Tanaka;M. Tsutumi;E. Bannai
  8. 전기전자재료학회논문지 v.15 no.1 ZnTiO₃계 마이크로파용 유전체 세라믹스의 저온소결에 관한 연구 이지형;방재철
  9. 전기전자재료학회논문지 v.14 no.3 Li 을 첨가한 $MgTiO_3-CaTiO_3$ 계 세라믹 유전체의 마이크로파 유전특성 김동영;이상석;한진우;전동석
  10. J. Eur. Ceram. Soc. v.20 Compositions of $MgTiO_3-CaTiO_3$ ceramic with two borosilicate glasses for LTCC technology H. Jantunen;R. Rautioaho;A. Unsimaki;S. Leppavuori
  11. J. Appl. Phys. v.10 no.1 Dielectric resonators R. D. Richtmyer
  12. Dielectric Resonators D. Kajfez;P. Guillon

Cited by

  1. A Study on the Enhancement of Cooling Efficiency for the Cabinet of Automatic Controller in the Interior of Industrial Building vol.17, pp.6, 2013,