Enhancement of Microwave Dielectric Properties in Mixed-Phase Ceramics Through CuB2O4 Doping: Achieving Ultra-Low Loss and High Dielectric Constant

The microwave dielectric properties of (1−x)Ca0.6(La0.9Y0.1)0.2667TiO3-x(Nd1/2La1/2)(Mg(1+δ)1/2Ti1/2)O3 ((1−x)CYTO-xNLMTO) ceramics were investigated in this study. It was discovered that the addition of 1 wt% CuB2O4 effectively enhanced the densification and improved the microwave dielectric properties of (1−x)CYTO-xNLMTO, where δ = 0.02. The new ceramic systems of (1−x)CYTO-xNLMTO could achieve ultra-low loss and a high dielectric constant. The novel ceramic systems comprising (1−x)CYTO-xNLMTO exhibited remarkably low loss and a significantly high dielectric constant.