Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Experimental Fabrication of Low Pass Filter of $BiNbO_4$ Ceramics

$BiNbO_4$세라믹스를 이용한 저역통과 필터에 관한 연구

  • 고상기 (KIST, 세라믹 공정센터) ;
  • 김경용 (KIST, 세라믹 공정센터) ;
  • 김병호 (고려대학교 공대 재료공학과) ;
  • 최환 (KIST, 세라믹 공정센터)
  • Published : 1998.04.01
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Abstract

$BiNbO_4$ ceramics doped with 0.07wt% $V_2O_5$ and 0.03wt% CuO (BNC3V7) were sucessfully sintered at $900^{\circ}C$ through the firing process with Ag electrode. The BNC3V7 shows typically Dielectric constant of 44.3, Thermal Coefficient of resonance Frequency(TCF) of 2 ppm/$^{\circ} and $Qxf_o$ value of 22,000 GHz. The laminated chip Low Pass Filter (LPF) is very sensitive to chip processing parameters, was confirmed by the computer simulation as a function of Q(Quality factors), filter size, capacitor layer thickness, inductor pattern widths. The multilayer type LPF was fabricated by screen-printing with Ag electrode after tape casting and then compared with the simulated characteristics. The results show that characterization of band pass width was similar to that of designed ones.

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References

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