| 摘要 |
The present invention provides microwave ceramic dielectric materials having large relative dielectric constant, very large Q, and stable and small temperature coefficient. The ceramic dielectric materials of the present invention are expressed by the general formula: [{BaO}x{TiO2}y{(Sm2O3)1-m-n(SrO.CeO2)m(CaO.CeO2)n}z]1-A[SrTiO3]A wherein, 0.1</=x</=0.25, 0.6</=y</=0.85, 0.05</=z</=0.3, 0</=m</=0.80, 0</=n<0.8, x+y+z=1, m+n</=0.8, x+y+z=1, 0<A</=0.40; x,y,z are expressed by mol fraction.
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| 申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
YAMADA, AKIRA;HONDA, TOSHIHISA;WATARAI, HISAO;SAITOU, KIYOSHI;UTSUMI, YOSHIKAZU |
