Dielectric tunable properties of low dielectric constant Ba0.5Sr0.5TiO3-Mg2TiO4 microwave composite ceramics

被引：135

作者：

Chou, Xiujian ^{[1
]}

Zhai, Jiwei ^{[1
]}

Yao, Xi ^{[1
]}

机构：

[1] Tongji Univ, Funct Mat Res Lab, Shanghai 200092, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2007年 / 91卷 / 12期

关键词：

D O I：

10.1063/1.2784202

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Ba0.5Sr0.5TiO3-Mg2TiO4 composite ceramics are fabricated via the conventional solid-state reaction method. The microstructures, dielectric tunability, and microwave properties of composite ceramics are investigated. The dielectric constant is tailored from 335 to 35 by manipulating the addition of Mg2TiO4 from 50% to 80% weight ratio and the tunability is 10.8% measured at 10 kHz for the 80% Mg2TiO4 addition. The composite ceramics with high Q value (> 200) at L band are useful for potential tunable microwave device applications in the wireless communication system.

引用

页数：3

共 15 条

[1] High-Q microwave dielectric materials based on the spinel Mg2TiO4 [J].

Belous, Anatolii ;

Ovchar, Oleg ;

Durilin, Dmitrii ;

Krzmanc, Marjeta Macek ;

Valant, Matjaz ;

Suvorov, Danilo .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2006, 89 (11) :3441-3445

[2] Dielectric properties of Ba0.6Sr0.4TiO3/Mg2SiO4/MgO composite ceramics -: art. no. 064107 [J].

Chen, Y ;

Dong, XL ;

Liang, RH ;

Li, JT ;

Wang, YL .

JOURNAL OF APPLIED PHYSICS, 2005, 98 (06)

[3]

Hakki B. W., 1960, IEEE Trans. Microwave Theory Techn, V8, P402, DOI DOI 10.1109/TMTT.1960.1124749

[4] VARIATION OF DIELECTRIC CONSTANT WITH VOLTAGE IN FERROELECTRICS AND ITS APPLICATION TO PARAMETRIC DEVICES [J].

JOHNSON, KM .

JOURNAL OF APPLIED PHYSICS, 1962, 33 (09) :2826-&

[5] Electric field dependent dielectric properties and high tunability of BaZrxTi1-xO3 relaxor ferroelectrics [J].

Maiti, Tanmoy ;

Guo, R. ;

Bhalla, A. S. .

APPLIED PHYSICS LETTERS, 2006, 89 (12)

[6] Ceramics materials based on (Ba,Sr)TiO3 solid solutions for tunable microwave devices [J].

Nenasheva, EA ;

Kanareykin, AD ;

Kartenko, NF ;

Dedyk, AI ;

Karmanenko, SF .

JOURNAL OF ELECTROCERAMICS, 2004, 13 (1-3) :235-238

[7]

Sengupta L., 1997, Brevet, Patent No. [U.S. 5635434, 5635434]

[8] Novel ferroelectric materials for phased array antennas [J].

Sengupta, LC ;

Sengupta, S .

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 1997, 44 (04) :792-797

[9] Breakthrough advances in low loss, tunable dielectric materials [J].

Sengupta, LC ;

Sengupta, S .

MATERIALS RESEARCH INNOVATIONS, 1999, 2 (05) :278-282

[10] Ferroelectric-dielectric tunable composites [J].

Sherman, VO ;

Tagantsev, AK ;

Setter, N ;

Iddles, D ;

Price, T .

JOURNAL OF APPLIED PHYSICS, 2006, 99 (07)

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