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The microwave dielectric properties of La2MoO6 ceramics were investigated in preparation for their application in mobile communication. La2MoO6 ceramics were prepared by the conventional solid-state method under varied sintering conditions. The X-ray diffraction peaks of La2MoO6 ceramic did not vary significantly with sintering conditions. The average grain size of La2MoO6 ceramics increased with increasing the sintering temperature and duration. The maximum density of 5.67 g/cm3, the dielectric constant ( ε r ) of 14.1, the quality factor (Q × f) of 68,000 GHz, and the temperature coefficient of resonant frequency ( τ f ) of −56 ppm/°C had been attained when La2MoO6 ceramics that sintered at 1300 °C for 4h. [ABSTRACT FROM AUTHOR]

The microwave dielectric properties of Nd(Ti0.5Mo0.5)O4 ceramics are examined, considering their application in 5G mobile communication. A maximum density of 5.79 g/cm3 is obtained for the Nd(Ti0.5Mo0.5)O4 ceramics, sintered at 1425 °C for 4 h. The ceramic's relative dielectric constant, unloaded quality factor, and temperature coefficient of the resonant frequency are 18.5, 29300 GHz, and 35 ppm/°C, respectively. The measurement results of the patch antenna application in 5G FR2 band are presented. A 14.5% bandwidth (return loss < 6 dB) of 29.6 GHz was implemented successfully for application in 5G n261 band. [ABSTRACT FROM AUTHOR]