The Transactions of the Korean Institute of Electrical Engineers (대한전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study on the Microwave Dielectric Properties of 0.182BaO-0.818TiOS12T Ceramics

0.182BaO-0.818TiO2 세라믹스의 마이크로파 유전특성에 관한 연구

  • 박인길 (광운대 대학원 전자재료공학과) ;
  • 이영희 (광운대 공대 전자재료공학과) ;
  • 윤석진 (KIST 세라믹스연구부) ;
  • 정형진 (KIST 세라믹스연구부)
  • Published : 1994.03.01

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Abstract

In this study, microwave dielectric properties of 0.182BaO-0.818TiOS12T ceramics were investigated with sintering temperature and annealing time, and the application for the microwave dielectric resonator was studied. In the specimen simtered at 1400[$^{\circ}C$], dielectric constant, unloaded Q and temperature coefficient of resonant frequency had good values of 35.36, 5692, -4.43[ppm/$^{\circ}C$], respectively. The specimen which temperature coefficient of resonant frequency($\tau$f) was vared positive to negative value was selected, thereafter microwave dielctric properties was investigated with annealing time(0~4[hr]) in the fixed annealing temperature of 1350[$^{\circ}C$]. Increasing the annealing time, dielectric constant and unloaded Q were increased and temperature coefficient of resonant frequency was decreased.

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