Experimental and numerical investigation of a ceramic dielectric resonator (DRA):: CaCu3Ti4O12 (CCTO)

被引：30

作者：

Almeida, A. F. L. ^{[1
,2
,3
]}

Silva, R. R. ^{[1
]}

Rocha, H. H. B. ^{[1
,4
]}

Fechine, P. B. A. ^{[1
,5
]}

Cavalcanti, F. S. A. ^{[3
]}

Valente, M. A. ^{[2
]}

Freire, F. N. A. ^{[1
]}

Sohn, R. S. T. M. ^{[1
]}

Sombra, A. S. B. ^{[1
]}

机构：

[1] Univ Fed Ceara, Dept Fis, Lab Telecomunicacoes & Ciencia & Engn Mat, BR-60455760 Fortaleza, Ceara, Brazil

[2] Univ Aveiro, Dept Fis, P-3800193 Aveiro, Portugal

[3] Univ Estadual Ceara, BR-60740903 Fortaleza, Ceara, Brazil

[4] Univ Fed Ceara, Dept Engn Teleinformat DETI, BR-60755640 Fortaleza, Ceara, Brazil

[5] Univ Fed Ceara, Dept Quim Analit & Fisicoquim, BR-60451970 Fortaleza, Ceara, Brazil

来源：

PHYSICA B-CONDENSED MATTER | 2008年 / 403卷 / 04期

关键词：

dielectric; electrical properties;

D O I：

10.1016/j.physb.2007.08.222

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In this study, the CaCu3Ti4O12 (CCTO) ceramic phase was synthesized by microwave heating in a much shorter time compared to the conventional heating methods. The results indicate that microwave processing is a promising method for preparing CCTO ceramics. CCTO was prepared using a domestic microwave oven operated at 2.45 GHz with 800 W. After a few minutes of microwave irradiation the formation of CCTO was confirmed by X-ray powder diffraction. The CCTO ceramic was studied in the medium-frequency (MF) range (100 Hz-1 MHz) and in the microwave range of frequencies. The experimental and theoretical characteristics of the dielectric resonator antenna are investigated. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：586 / 594

页数：9

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