In recent years, along with the rapid growth in wireless communications industry A variety of microwave devices such as filters, duplexers, resonators and antennas were well developed [1]. Nowadays increased attention has been paid to develop microwave dielectric ceramics with low sintering temperatures for low-temperature cofired ceramics(LTCC) application. To realize cofiring with Ag electrode,thesintering temperatures of these ceramic materials should be
lower than 950 1C. However, the sintering temperature of most commercial dielectric ceramic is much higher than the melting point of silver [4–6]. Therefore , it is important to develop the microwave dielectric ceramic with low sintering temperature and good microwave dielectric properties.
Recently , Sebastian et al. [7,8] reported that Li2ZnTi3O8 ceramics sintered at 1075 1C for 4 h exhibited good microwave dielectric properties of εr =25.6, Q_f=72000 GHz, τf= −11.2 ppm/1C. Li2ZnTi3O8 ceramics are expected as very competitive ultra-low loss microwave materials compared with the previous materials such as Ba(Mg1/3Ta2/3)O3 [9] and Zr0.8Sn0.2TiO4 [10], which have a low cost of raw materials and low bulk density . In order to realize the LTCC applications