대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
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비화학양론성 BSSNT 세라믹스의 마이크로파 유전 특성

Microwave Dielectric Properties of Nonstoichiometric BSSNT Ceramics

  • Park, In-Gil (Dept. of Electronic Materials Eng. Kwang Woon Univ.) ;
  • Lee, Young-Hie (Dept. of Electronic Materials Eng. Kwang Woon Univ.) ;
  • Ryu, Ki-Won (Dept. of Electronics Yeo Joo Tech. College) ;
  • Bae, Seon-Gi (Dept. of Electric Eng. In Cheon Univ.)
  • 발행 : 1994.11.18
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초록

Microwave dielectric properties of $0.15(Ba_xSr_{0.05})O-0.15(Sm_{2(1-y)}Nd_{2y})O_3-0.7TiO_2$ ($x=0.9{\sim}1.0[mol.]$, y=6[m/0]) and $0.15(Ba_{0.95}Sr_{0.05})O-0.15(Sm_{2(1-y)}Nd_{2y})O_3-zTiO_2$(y=6[m/o], $z=0.66{\sim}0.7[mol.]$) ceramics were investigated with the contents of BaO and $TiO_2$. In the specimen with contents of BaO (0.975[mol.]), dielectric constant, quality factor and temperature coefficient of resonant frequency have good values of 76.52, 3001(at 3[GHz]), +0.71[ppm/$^{\circ}C$], respectively. In the specimen with contents of $TiO_2$(0.69[mol.]), dielectric constant, quality factor and temperature coefficient of resonant frequency showed the maximum values of 80.89, 3057(at 3[GHz]), +26.12[ppm/$^{\circ}C$], respectively.

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