x(Mg0.7Zn0.3)0.95Co0.05TiO3-(1-x)(La0.5Na0.5)TiO3 ceramic at microwave frequency with a near zero temperature coefficient of resonant frequency

Cheng Liang Huang; Shih Hung Lin; Shih Sheng Liu; Yuan Bin Chen

doi:10.1016/j.jallcom.2009.09.103

x(Mg_0.7Zn_0.3)_0.95Co_0.05TiO₃-(1-x)(La_0.5Na_0.5)TiO₃ ceramic at microwave frequency with a near zero temperature coefficient of resonant frequency

Cheng Liang Huang, Shih Hung Lin, Shih Sheng Liu, Yuan Bin Chen

Department of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

Dielectric properties of x(Mg_0.7Zn_0.3)_0.95Co_0.05TiO₃-(1-x)(La_0.5Na_0.5)TiO₃ ceramic were investigated at microwave frequencies. A nearly 0 ppm/°C temperature coefficient of resonant frequency was realized at x = 0.9. A two-phase system was confirmed by XRD analysis. A dielectric material applicable to microwave devices with a Q × f of 20,000-87,000 GHz and a dielectric constant of 21.27-26.2 was obtained at 1100 °C after 4 h of sintering. The microwave dielectric material 0.9(Mg_0.7Zn_0.3)_0.95Co_0.05TiO₃-0.1(La_0.5Na_0.5)TiO₃ sintered at 1150 °C for 4 h has a dielectric constant of 24.56, a Q × f of 68,000 GHz, and a τ_f value of 0 ppm/°C. It is proposed as a candidate dielectric for GPS patch antennas.

Original language	English
Pages (from-to)	541-544
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	489
Issue number	2
DOIs	https://doi.org/10.1016/j.jallcom.2009.09.103
Publication status	Published - 2010 Jan 21

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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@article{8773cf0dbe0442faacf445be3d98752b,

title = "x(Mg0.7Zn0.3)0.95Co0.05TiO3-(1-x)(La0.5Na0.5)TiO3 ceramic at microwave frequency with a near zero temperature coefficient of resonant frequency",

abstract = "Dielectric properties of x(Mg0.7Zn0.3)0.95Co0.05TiO3-(1-x)(La0.5Na0.5)TiO3 ceramic were investigated at microwave frequencies. A nearly 0 ppm/°C temperature coefficient of resonant frequency was realized at x = 0.9. A two-phase system was confirmed by XRD analysis. A dielectric material applicable to microwave devices with a Q × f of 20,000-87,000 GHz and a dielectric constant of 21.27-26.2 was obtained at 1100 °C after 4 h of sintering. The microwave dielectric material 0.9(Mg0.7Zn0.3)0.95Co0.05TiO3-0.1(La0.5Na0.5)TiO3 sintered at 1150 °C for 4 h has a dielectric constant of 24.56, a Q × f of 68,000 GHz, and a τf value of 0 ppm/°C. It is proposed as a candidate dielectric for GPS patch antennas.",

author = "Huang, {Cheng Liang} and Lin, {Shih Hung} and Liu, {Shih Sheng} and Chen, {Yuan Bin}",

year = "2010",

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doi = "10.1016/j.jallcom.2009.09.103",

language = "English",

volume = "489",

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journal = "Journal of the Less-Common Metals",

issn = "0925-8388",

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T1 - x(Mg0.7Zn0.3)0.95Co0.05TiO3-(1-x)(La0.5Na0.5)TiO3 ceramic at microwave frequency with a near zero temperature coefficient of resonant frequency

AU - Huang, Cheng Liang

AU - Lin, Shih Hung

AU - Liu, Shih Sheng

AU - Chen, Yuan Bin

PY - 2010/1/21

Y1 - 2010/1/21

N2 - Dielectric properties of x(Mg0.7Zn0.3)0.95Co0.05TiO3-(1-x)(La0.5Na0.5)TiO3 ceramic were investigated at microwave frequencies. A nearly 0 ppm/°C temperature coefficient of resonant frequency was realized at x = 0.9. A two-phase system was confirmed by XRD analysis. A dielectric material applicable to microwave devices with a Q × f of 20,000-87,000 GHz and a dielectric constant of 21.27-26.2 was obtained at 1100 °C after 4 h of sintering. The microwave dielectric material 0.9(Mg0.7Zn0.3)0.95Co0.05TiO3-0.1(La0.5Na0.5)TiO3 sintered at 1150 °C for 4 h has a dielectric constant of 24.56, a Q × f of 68,000 GHz, and a τf value of 0 ppm/°C. It is proposed as a candidate dielectric for GPS patch antennas.

AB - Dielectric properties of x(Mg0.7Zn0.3)0.95Co0.05TiO3-(1-x)(La0.5Na0.5)TiO3 ceramic were investigated at microwave frequencies. A nearly 0 ppm/°C temperature coefficient of resonant frequency was realized at x = 0.9. A two-phase system was confirmed by XRD analysis. A dielectric material applicable to microwave devices with a Q × f of 20,000-87,000 GHz and a dielectric constant of 21.27-26.2 was obtained at 1100 °C after 4 h of sintering. The microwave dielectric material 0.9(Mg0.7Zn0.3)0.95Co0.05TiO3-0.1(La0.5Na0.5)TiO3 sintered at 1150 °C for 4 h has a dielectric constant of 24.56, a Q × f of 68,000 GHz, and a τf value of 0 ppm/°C. It is proposed as a candidate dielectric for GPS patch antennas.

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DO - 10.1016/j.jallcom.2009.09.103

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JO - Journal of the Less-Common Metals

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