Title :
Improved microwave dielectric properties of Nd(Mg0.5Sn0.5)O3 ceramics with Ca substitution
Author :
Yih-Chien Chen ; Da-Yeh Tsai ; Kuang-Chiung Chang
Author_Institution :
Dept. of Electr. Eng., Lunghwa Univ. of Sci. & Technol., Taoyuan, Taiwan
Abstract :
The microwave dielectric properties of Nd(Mg0.5-xCaxSn0.5)O3 ceramics were examined with a view to their exploitation in mobile communication. The Nd(Mg0.5-xCaxSn0.5)O3 ceramics were prepared by the conventional solid-state method with various sintering temperatures. The X-ray diffraction patterns of the Nd(Mg0.43Ca0.07Sn0.5)O3 ceramics revealed no significant variation of phase with sintering temperatures. A density of 6.88 g/cm3, a dielectric constant (εr) of 19.51, a quality factor (Q × f) of 100,400 GHz, and a temperature coefficient of resonant frequency of -57.8 ppm/°C were obtained for Nd(Mg0.43Ca0.07Sn0.5)O3 ceramics that were sintered at 1550°C for 4 h.
Keywords :
X-ray diffraction; ceramics; neodymium compounds; permittivity; sintering; Ca substitution; Nd(Mg0.5-xCaxSn0.5)O3; X-ray diffraction patterns; XRD; ceramic improved microwave dielectric properties; dielectric constant; mobile communication; phase variation; quality factor; resonant frequency; sintering temperatures; solid-state method; temperature 1550 degC; temperature coefficient; time 4 h; Ceramics; Dielectric constant; Microwave filters; Resonant frequency; Temperature;
Conference_Titel :
Next-Generation Electronics (ISNE), 2013 IEEE International Symposium on
Conference_Location :
Kaohsiung
Print_ISBN :
978-1-4673-3036-7
DOI :
10.1109/ISNE.2013.6512379
