发明名称 |
DIELECTRIC CERAMIC AND DIELECTRIC FILTER PROVIDED WITH SAME |
摘要 |
[Problem] To provide, using a material which does not contain any rare earth element, a dielectric ceramic which exhibits a relative permittivity (er) of 40 to 46 and an enhanced Qf value; and to provide a dielectric filter provided with the same. [Solution] A dielectric ceramic comprising a sintered body such that when the composition is represented by the compositional formula aZrO2·ßTiO2· ?ZnO·dNb2O5, the molar ratios a, ß, ? and d satisfy 0.3000=a=0.5500, 0.3300=ß=0.6000, 0.0108=?=0.0717, 0.0193 =d=0.1283, a+ß+?+d=1, and 0.5<?/d=1, wherein areas having Zn concentrations of 5% or more occupy at least some of the surface of the sintered body.
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申请公布号 |
WO2012147769(A1) |
申请公布日期 |
2012.11.01 |
申请号 |
WO2012JP61041 |
申请日期 |
2012.04.25 |
申请人 |
KYOCERA CORPORATION;TOYODA,SATOSHI;TAKENOSHITA,HIDEHIRO;KOMATSU,TSUYOSHI |
发明人 |
TOYODA,SATOSHI;TAKENOSHITA,HIDEHIRO;KOMATSU,TSUYOSHI |
分类号 |
C04B35/462;C04B35/49;H01B3/12;H01G4/12;H01P1/20;H01P7/10;H03H9/17 |
主分类号 |
C04B35/462 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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