Abstract:
Dielectric resonators belonging to the families of complex perovskiteBa3ZnTa2−xNbxO9were synthesized by a solid-state reaction route.Calcination at 1250°C leads to oxides with ordered (hexagonal)perovskite structure over the range (0.25≤x≤1.75). However, orderingrefraction intensity of PXRD patterns increased on sintering at 1340°Cwith tungstic acid, as a sintering aid. Sintering has lead to >90% density.In microwave range, Ba3ZnTa0.5Nb1.5O9shows much higher permittivity(35) and quality factor (43,120 GHz).
