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

โœ Scribed by A.F.L. Almeida; R.R. Silva; H.H.B. Rocha; P.B.A. Fechine; F.S.A. Cavalcanti; M.A. Valente; F.N.A. Freire; R.S.T.M. Sohn; A.S.B. Sombra

Publisher
Elsevier Science
Year
2008
Tongue
English
Weight
563 KB
Volume
403
Category
Article
ISSN
0921-4526

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โœฆ Synopsis

In this study, the CaCu 3 Ti 4 O 12 (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.

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