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Microwave dielectric properties of the spinel composition Mg1+xTixAl2-2xO4

Badev , Alex and Iliev , I. and Cambronne, J.P and Lebey, Thierry and Barnabé, Antoine and Levcheva, V. Microwave dielectric properties of the spinel composition Mg1+xTixAl2-2xO4. (2007) Journal of OptoElectronics and Advanced Materials, vol. 1 (n° 10). pp. 507-509. ISSN 1454-4164

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Abstract

The objects of our research is magnesium aluminates (spinel), in which the electric charge of Al3+ cation is partially substituted with constitutive trivalent cation of Mg2+ and Ti 4+ in the system with the following composition: Mg1+xTixAl2-2xO4 with (x) varying from 0,1 to 0,6. X-ray diffraction data shows that within the above values of (x) the composition is a single phase spinel. The microwave basic parameters were measured as εr, tan δ and τf, respectively with the following values: εr = 6-12, tanδ = (1.5-3.5) x 10-4 at 10 GHz and Qf = 70 000 – 90 000, and τf from -50 to -70 ppm/deg.

Item Type:Article
Additional Information:Thanks to National Institute for Research and Development of Optoelectronics editor. The definitive version is available at http://inoe.inoe.ro/Journal.html The original PDF of the article can be found at Journal of OptoElectronics and Advanced Materials website : http://inoe.inoe.ro/Journal.html
Audience (journal):International peer-reviewed journal
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Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Other partners > Sofia University St. Kliment Ohridski (BULGARIA)
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
French research institutions > Centre National de la Recherche Scientifique - CNRS
Other partners > University of Chemical Technology and Metallurgy of Sophia (BULGARIA)
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Deposited By: Celine Cabaup

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