公开(公告)号：US5569632A

公开(公告)日：1996-10-29

申请号：US488827

申请日：1995-06-09

申请人： Hyung J. Jung ,  Hyun J. Kim ,  Kyong Y. Kim ,  Seok J. Yoon ,  Sang O. Yoon ,  Tetsuro Nakamura ,  Mitsuru Itoh ,  Yoshiyouki Inaguma

发明人： Hyung J. Jung ,  Hyun J. Kim ,  Kyong Y. Kim ,  Seok J. Yoon ,  Sang O. Yoon ,  Tetsuro Nakamura ,  Mitsuru Itoh ,  Yoshiyouki Inaguma

IPC分类号： C04B35/46 ,  C04B35/465 ,  H01B3/12

CPC分类号： H01B3/12 ,  C04B35/465

摘要： The present invention provides compositions of high frequency dielectric ceramics represented by the following formula:(1-y) SrTiO.sub.3 -y La(Zn.sub.1-x)/2 Mg.sub.x/2 Ti.sub.1/2)O.sub.3wherein 0.ltoreq.x.ltoreq.0.99; and 0.4.ltoreq.y.ltoreq.0.9. The compositions have a dielectric constant of about 28 to about 60, Qxf.sub.0 (GHz) of about 25,000 to about 71,000 and a temperature coefficient of the resonant frequency of about -56 to about 84 ppm/.degree. C. The compositions may be applied to various communications systems which require high frequency dielectric ceramics.

摘要翻译： 本发明提供了由下式表示的高频电介质陶瓷的组合物：（1-y）SrTiO3-y La（Zn1-x）/ 2Mgx / 2Ti + E，fra1 / 2 + EE）O3，其中0 < x <= = 0.99; 和0.4≤y≤0.9。 组合物具有约28至约60的介电常数，约25,000至约71,000的Qxf0（GHz）和约-56至约84ppm /℃的共振频率的温度系数。该组合物可以应用于各种 需要高频电介质陶瓷的通信系统。