Microwave dielectric properties of high quality factor La(Mg0.5−xCaxSn0.5)O3 ceramics |
| |
Authors: | Yih-Chien Chen Ming-De Chen |
| |
Affiliation: | Department of Electrical Engineering, Lunghwa University of Science and Technology, Gueishan Shiang, Taoyuan County, Taiwan |
| |
Abstract: | The microwave dielectric properties of La(Mg0.5−xCaxSn0.5)O3 ceramics were examined with a view to their exploitation for wireless communications. The La(Mg0.5−xCaxSn0.5)O3 ceramics were prepared by the conventional solid-state method with various sintering temperatures. The La(Mg0.5−xCaxSn0.5)O3 ceramics contained Ca2SnO4, CaSnO3, and La2O3. The amount of Ca2SnO4 increased with increasing sintering temperature. However, the relative amount of CaSnO3 decreased with increasing sintering temperature. An apparent density of 6.52 g/cm3, a dielectric constant (εr) of 20.2, a quality factor (Q×f) of 80,500 GHz, and a temperature coefficient of resonant frequency (τf) of −79 ppm/°C were obtained for La(Mg0.4Ca0.1Sn0.5)O3 ceramics that were sintered at 1500 °C for 4 h. |
| |
Keywords: | A. Ceramics B. Chemical synthesis C. X-ray diffraction D. Dielectric properties |
本文献已被 ScienceDirect 等数据库收录! |
|