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.
| Original language | English |
|---|---|
| Pages (from-to) | 541-544 |
| Number of pages | 4 |
| Journal | Journal of Alloys and Compounds |
| Volume | 489 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2010 Jan 21 |
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All Science Journal Classification (ASJC) codes
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry
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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. / Huang, Cheng-Liang; Lin, Shih Hung; Liu, Shih Sheng; Chen, Yuan Bin.
In: Journal of Alloys and Compounds, Vol. 489, No. 2, 21.01.2010, p. 541-544.Research output: Contribution to journal › Article
TY - JOUR
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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U2 - 10.1016/j.jallcom.2009.09.103
DO - 10.1016/j.jallcom.2009.09.103
M3 - Article
VL - 489
SP - 541
EP - 544
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
IS - 2
ER -