Experimental and simulation analysis of microstrip patch antennas on BiNbO4 ceramic substrates

The miniaturization of electronics systems requires smaller antennas. Therefore a very good characterization of the antennas is needed. One of the available techniques to minimize the antenna size is the use of ceramic materials with very high permittivity. One of the advantages of ceramic materials over other dielectric materials is the possibility of fabricating compact and easy to build several microwave integrated circuits, such as microstrip patch antennas. This work describes an experimental investigation of microstrip antennas on (BiNbO4) bismuth niobato substrates that exhibit very high permittivity, high Q factor, and a very small temperature coefficient at the resonant frequency. The numerical and measured results obtained in this work for the proposed antennas on bismuth niobato substrates are in good agreement. These antennas are excellent candidates for wireless system applications.