Dielectric properties of Nd(Ti0.5Mo0.5)O4 ceramics at microwave frequency for antenna application in 5G FR2 frequency band

Abstract

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.