| 发明名称 |
Dielectric porcelain for use at high frequencies |
| 摘要 |
The improved dielectric porcelain for use at high frequencies is represented by the general formula: xSrOxyCaOxz[(1-m)TiO2xm/2{TaO5/2x(1-n)GaO3/2xnGdO3/2 &musics& ] [where 0.42</=x</=0.54 (or 0.06</=x</=0.18); 0.06</=y</=0.18 (or 0.42</=y</=0.54); z=0.40; 0.05</=m</=0.70; 0.00</=n</=1.00; x+y=0.6] with Mn2O3 being contained in an amount of up to 3 wt% of the total amount. The porcelain can be formulated from essentially similar basic compositions and yet it exhibits specific dielectric constants over a broad range on the order of 20-60 in the microwave frequency region and, at the same time, it has commerically acceptable high values of Q factor as well as stable and small temperature coefficients of dielectric constant.
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| 申请公布号 |
US5134101(A) |
申请公布日期 |
1992.07.28 |
| 申请号 |
US19910806602 |
申请日期 |
1991.12.12 |
| 申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
YAMADA, AKIRA;HONDA, TOSHIHISA;UTSUMI, YOSHIKAZU;WATARAI, HISAO |
| 分类号 |
C04B35/47;C04B35/495 |
主分类号 |
C04B35/47 |
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