Electric-field-control led permittivity ferroelectric composition for microwave LTCC modules

被引：35

作者：

Hu, T ^{[1
]}

Jantunen, H

Deleniv, A

Leppävuori, S

Gevorgian, S

机构：

[1] Univ Oulu, Microelect & Mat Phys Lab, FIN-90014 Oulu, Finland

[2] Univ Oulu, EMPART Res Grp Infotech, FIN-90014 Oulu, Finland

[3] Chalmers Univ Technol, Dept Microelect, S-41296 Gothenburg, Sweden

[4] Microwave & High Speed Res Ctr, Ericsson AB, S-43184 Molndal, Sweden

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2004年 / 87卷 / 04期

关键词：

D O I：

10.1111/j.1551-2916.2004.00578.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A low-temperature cofired ferroelectric ceramic composition for electrically tunable radio frequency devices is introduced. A sintering temperature of 950degreesC for BaSrTiO3,-MgO was obtained following the combined addition of B2O3 and Li2CO3.The effects of these sintering aids on densification, microstruc-ture, and ferroelectric properties were investigated. The permittivity and dissipation factor values were 234 and 0.0010, respectively, measured at 286.3 K, 1 kHz. The electrically tunable ferroelectric structure for microwave measurement was fabricated throughout the tape-casting process. Measured permittivity was 130 at 26 GHz and tunability >15% (4 V/mum).

引用

页码：578 / 583

页数：6

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