HIGH PERMITTIVITY AND LOW-LOSS CERAMICS IN THE BAO-SRO-NB2O5

被引：107

作者：

SREEMOOLANADHAN, H ^{[1
]}

SEBASTIAN, MT ^{[1
]}

MOHANAN, P ^{[1
]}

机构：

[1] COCHIN UNIV SCI & TECHNOL,DEPT ELECTR,KOCHI 682022,INDIA

来源：

MATERIALS RESEARCH BULLETIN | 1995年 / 30卷 / 06期

关键词：

DIELECTRIC RESONATORS; MICROWAVE CERAMICS; NIOBATES; OXIDE CERAMICS;

D O I：

10.1016/0025-5408(95)00070-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new group of compounds with composition (Ba5-xSrx)Nb4O15, having high permittivity and low loss have been prepared and characterised in the microwave frequency region. X-ray diffraction studies showed that monophase compound existed for all values of x from 0 to 5. Microwave dielectric properties such as epsilon(r) and tau(f) showed smooth variation with x, while the unloaded quality factor (Q(u)) showed remarkable improvement with x. A range of ceramic dielectric resonators(DR) with 40< epsilon(r) <50,-10<tau(f)<+10 and Q x f>10,000 can be obtained in this system.

引用

页码：653 / 658

页数：6

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