Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Microwave Dielectric Properties of 0.15BaO-$0.15Sm_2O_3-0.7TiO_2$ Ceramics

0.15BaO-$0.15Sm_2O_3-0.7TiO_2$ 세라믹스의 마이크로파 유전 특성

  • 이근일 (광운대학교 전자재료공학과) ;
  • 박인길 (광운대학교 전자재료공학과) ;
  • 이영희 (광운대학교 전자재료공학과) ;
  • 윤석진 (한국과학기술연구원 세라믹스부)
  • Published : 1993.11.26
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Abstract

0.15BaO-$0.15Sm_2O_3-0.7TiO_2$, ceramics were fabricated by mixed-oxide method. Microwave dielectric properties were investigated with sintering temperature and annealing time. In the specimen sintered at 1350[$^{\circ}C$], dielectric constant, quality factor and temperature coefficient of resonant frequency had a good values of 80.19, 2006 (at 4.6851[GHz]), -27.54[ppm/$^{\circ}C$], respectively. Increasing the annealing time, dielectric constant was almost constant and quality factor was increased. Temperature coefficient of resonant frequency was minimum value (-1.28[ppm/$^{\circ}C$]) at 4 [hr] annealed.

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