Microwave dielectric properties of (1 - x)(Mg0.95Zn0.05)TiO3-x(Na0.5La0.5)TiO3 ceramic system

Cheng Liang Huang; Gung Jie Li; Jun Jie Wang

doi:10.1016/j.jallcom.2008.05.007

Microwave dielectric properties of (1 - x)(Mg_0.95Zn_0.05)TiO₃-x(Na_0.5La_0.5)TiO₃ ceramic system

Cheng Liang Huang, Gung Jie Li, Jun Jie Wang

Department of Electrical Engineering

Research output: Contribution to journal › Article

13 Citations (Scopus)

Abstract

The microstructures and the microwave dielectric properties of the (1 - x)(Mg_0.95Zn_0.05)TiO₃-x(Na_0.5La_0.5)TiO₃ ceramic system were investigated. In order to achieve a temperature-stable material, combining a positive temperature coefficient material with a negative one was applied in this study. (Na_0.5La_0.5)TiO₃, having a large positive τ_f value, was added to (Mg_0.95Zn_0.05)TiO₃ to compensate its τ_f. By appropriately adjusting the x value in the ceramic system, zero τ_f value can be achieved. The microwave dielectric properties are strongly related to the density, the matrix and the second phase of the specimen. A new microwave dielectric material, 0.88(Mg_0.95Zn_0.05)TiO₃-0.12(Na_0.5La_0.5)TiO₃ possessing an ε_r of 23.39, a Q × f of 103,000 GHz (at 9 GHz) and a τ_f of 1.1 ppm/°C that is applicable in GPS patch antennas and 3 G passive components, is suggested.

Original language	English
Pages (from-to)	497-501
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	472
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2008.05.007
Publication status	Published - 2009 Mar 20

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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Huang, C. L., Li, G. J., & Wang, J. J. (2009). Microwave dielectric properties of (1 - x)(Mg_0.95Zn_0.05)TiO₃-x(Na_0.5La_0.5)TiO₃ ceramic system. Journal of Alloys and Compounds, 472(1-2), 497-501. https://doi.org/10.1016/j.jallcom.2008.05.007

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abstract = "The microstructures and the microwave dielectric properties of the (1 - x)(Mg0.95Zn0.05)TiO3-x(Na0.5La0.5)TiO3 ceramic system were investigated. In order to achieve a temperature-stable material, combining a positive temperature coefficient material with a negative one was applied in this study. (Na0.5La0.5)TiO3, having a large positive τf value, was added to (Mg0.95Zn0.05)TiO3 to compensate its τf. By appropriately adjusting the x value in the ceramic system, zero τf value can be achieved. The microwave dielectric properties are strongly related to the density, the matrix and the second phase of the specimen. A new microwave dielectric material, 0.88(Mg0.95Zn0.05)TiO3-0.12(Na0.5La0.5)TiO3 possessing an εr of 23.39, a Q × f of 103,000 GHz (at 9 GHz) and a τf of 1.1 ppm/°C that is applicable in GPS patch antennas and 3 G passive components, is suggested.",

author = "Huang, {Cheng Liang} and Li, {Gung Jie} and Wang, {Jun Jie}",

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AU - Wang, Jun Jie

PY - 2009/3/20

Y1 - 2009/3/20

N2 - The microstructures and the microwave dielectric properties of the (1 - x)(Mg0.95Zn0.05)TiO3-x(Na0.5La0.5)TiO3 ceramic system were investigated. In order to achieve a temperature-stable material, combining a positive temperature coefficient material with a negative one was applied in this study. (Na0.5La0.5)TiO3, having a large positive τf value, was added to (Mg0.95Zn0.05)TiO3 to compensate its τf. By appropriately adjusting the x value in the ceramic system, zero τf value can be achieved. The microwave dielectric properties are strongly related to the density, the matrix and the second phase of the specimen. A new microwave dielectric material, 0.88(Mg0.95Zn0.05)TiO3-0.12(Na0.5La0.5)TiO3 possessing an εr of 23.39, a Q × f of 103,000 GHz (at 9 GHz) and a τf of 1.1 ppm/°C that is applicable in GPS patch antennas and 3 G passive components, is suggested.

AB - The microstructures and the microwave dielectric properties of the (1 - x)(Mg0.95Zn0.05)TiO3-x(Na0.5La0.5)TiO3 ceramic system were investigated. In order to achieve a temperature-stable material, combining a positive temperature coefficient material with a negative one was applied in this study. (Na0.5La0.5)TiO3, having a large positive τf value, was added to (Mg0.95Zn0.05)TiO3 to compensate its τf. By appropriately adjusting the x value in the ceramic system, zero τf value can be achieved. The microwave dielectric properties are strongly related to the density, the matrix and the second phase of the specimen. A new microwave dielectric material, 0.88(Mg0.95Zn0.05)TiO3-0.12(Na0.5La0.5)TiO3 possessing an εr of 23.39, a Q × f of 103,000 GHz (at 9 GHz) and a τf of 1.1 ppm/°C that is applicable in GPS patch antennas and 3 G passive components, is suggested.

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