Journal of the Korean Institute of Telematics and Electronics A (전자공학회논문지A)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Dielectric Properties of ($Pb_{1-x}Ca_{x})ZrO_{3}$ Ceramics at Microwave Frequencies

($Pb_{1-x}Ca_{x})ZrO_{3}$계 세라믹스의 고주파 유전 특성

  • Lee, Sang-Yoon (Ceramic Processing Lab., Korea Institute of Science and Technology) ;
  • Choi, Whan (Korea Sang Shin Elec. Co., Ltd.) ;
  • Kim, Wang-Sup (Ceramic Processing Lab., Korea Institute of Science and Technology) ;
  • Kim, Kyung-Yong (Ceramic Processing Lab., Korea Institute of Science and Technology)
  • 이상윤 (한국과학기술연구원 세라믹스 공정연구실) ;
  • 최환 (한국 상신전기주식회사) ;
  • 김왕섭 (한국과학기술연구원 세라믹스 공정연구실) ;
  • 김경용 (한국과학기술연구원 세라믹스 공정연구실)
  • Published : 1992.10.01
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Abstract

A ($Pb_{1-x}Ca_{x})ZrO_{3}$ system which has a high dielectric constant, low dielectric loss and temperature coefficient was investigated. For sintering temperatures above 1350$^{\circ}C$ the microstructures of sintered bodies were unchanged regardless of the amount of CaO. The dielectric constant and dielectric loss decreased and the temperature coefficient varied from positive to negative with the increasing amount of CaO. For the CaO content of 0.37, i.e. ($Pb_{0.63}Ca_{0.37})ZrO_{3}$, the ceramic showed very good dielectric properties such as ${\varepsilon}_1$=100, Q > 1200 at 3GHz, and T$_f$=$\pm$3ppm/$^{\circ}C$.

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