Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Microwave Dielectric Properties of the ($Ba_{1-x}Sr_{x}$)O-$Sm_2O_3$-$TiO_2$ Ceramics.

($Ba_{1-x}Sr_{x}$)O-$Sm_2O_3$-$TiO_2$세라믹스의 마이크로파 유전특성

  • 박인길 (광운대학교 전자재료공학과) ;
  • 류기원 (여주전문대 전자과) ;
  • 배선기 (인천대학교 전기공학과) ;
  • 이영희 (광운대학교 전자재료공학과)
  • Published : 1995.11.01

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Abstract

0.15($Ba_{1-x}Sr_{x}$)O-$0.15Sm_2O_3$-$0.7TiO_2$(x=0∼9[m/o]ceramics were fabricated by mixed-oxide method. Microwave dielectric properties were investigated with sintering conditions aid Sr addictive. In the specimen with x=0[m/o] sintered at 1350∼1470[$^{\circ}C$], dielectric constant, quality factor and temperature coefficient of resonant frequency were 70∼74, 2800∼3300(at 3[GHz]), -1.33∼+l.66[ppm/$^{\circ}C$, respectively. Increasing the Sr additive from 0 to 5[m/o], dielectric constant and temperature coefficient of resonant frequency were increased and quality factor was decreased. In the specimen with x=r[m/o] sintered at 1375[$^{\circ}C$], 6[hr], dielectric constant, quality factor and temperature coefficient resonant frequency were 75.62, 2785(at 3[GHz]), +8.39[ppm/$^{\circ}C$], respectively.

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