The microwave dielectric properties of (Mg((1-x))Ni-x)(2)SnO4 ceramics were examined with a view to their exploitation for mobile communication. The (Mg((1-x))Ni-x)(2)SnO4 ceramics were prepared by the conventional solid-state method with various sintering temperatures. The X-ray diffraction (XRD) patterns of the (Mg0.95Ni0.05)(2)SnO4 ceramics revealed no significant variation of phase with sintering temperatures. A maximum density of 4.77 g cm(-3) was obtained for (Mg0.95Ni0.05)(2)SnO4 ceramic, sintered at 1550 degrees C for 4 h. Dielectric constant (epsilon(r)) of 8.72, quality factor (Q x f) of 103,100 GHz, and temperature coefficient of resonant frequency (tau(f)) of -62.8 ppm degrees C-1 were obtained for (Mg0.95Ni0.05)(2)SnO4 ceramics that were sintered at 1550 degrees C for 4 h. (C) 2012 Elsevier B.V. All rights reserved.