Dielectric properties of copper oxide doped 0.95Ba(Zn1/3Ta2/3)O3–0.05BaZrO3 ceramics at microwave frequency

摘要: Abstract The microwave dielectric properties of conventional solid state route prepared 0.95Ba(Zn 1/3 Ta 2/3 )O 3 –0.05BaZrO ceramics with CuO addition have been investigated. Ordering structure was not observed at sintering temperatures 1280–1430 °C. Copper oxide, as a aid, found to effectively lower the temperature ceramics. Q  ×  f values 58 000–93 000 (at 7 GHz) can be obtained when are in range permittivity ( ɛ r ) well coefficient resonant frequency τ strongly correlated content but independent temperature. value 29.6, 93 000 and 3.1 ppm °C −1 were for 1 wt.% sintered 1430 °C 4 h. For applications high selective ceramic resonator filter, is proposed suitable material candidate.