  A compact dielectric resonator antenna has been fabricated on a microstrip
transmission line for the purpose of C-band wireless communication using a
ceramic material made out of a sintered mixture of BTO and NiO. The antenna
parameters are optimized using Ansys HFSS software and verified experimentally.
Ni replaces both Ba at A site and Ti at B site. Such a solid solution has a
limit depending on the amount of NiO provided during sintering. A complete
study of the structural changes and the dielectric constant enables the
correlation with the resonating property. All the samples retain the
ferroelectric tetragonal P4mm phase with a nominal decrease in the c/a ratio.
NiO incorporation in BTO decreases the sintering temperature and shows two
types of morphology associated with BTO-like and NiO-like phases. It induces
prominent reduction in the permittivity and loss tangent (<0.01) in the range
100Hz to 1MHz. These properties make these samples suitable for DRA application
in the C-Band range [4-8 GHz]. Experimental and theoretical assessment using
HFSS software yields a C-band signal at ~7.27 GHz.
