Design, characterization, fabrication, and performance evaluation of ferroelectric dielectric resonator antenna for high-speed wireless communication applications

The research comprehensively analyzes the structural, electrical, and electrodynamic characteristics of Ba0.7Sr0.3TiO3 nanoparticles synthesized using a sol-gel approach. The formation of a tetragonal perovskite phase and the nano-crystalline nature have been confirmed using X-ray diffraction (XRD) analysis. Fourier transform infrared (FTIR) spectroscopy has been employed to identify characteristic absorption bands correlated with the crystal lattice vibrations of Ba0.7Sr0.3TiO3. The sample's morphology has been examined using scanning electron microscopy (SEM), revealing a relatively dense and homogeneous composition composed of small spherical particles. The electrical properties of Ba0.7Sr0.3TiO3 nanoparticles have also been investigated using a ferroelectric measurement technique. The soft electric hysteresis loop with a small coercive field value makes the sample suitable for photovoltaic applications. Finally, a compact dielectric resonator antenna (DRA) based on Ba0.7Sr0.3TiO3 nanoparticles has been designed and characterized. The designed DRA demonstrates good impedance matching, broadside radiation pattern, and high antenna gain and efficiency at the frequency band of 5.6-6.15 GHz, making it suitable for sub-6 GHz (5 G) applications.

Automated summary

This research comprehensively analyzes the characteristics of Ba0.7Sr0.3TiO3 nanoparticles synthesized using a sol-gel approach, including their structure, electrical properties, and electrodynamic behavior. The study confirms the formation of a tetragonal perovskite phase and nano-crystalline nature through X-ray diffraction analysis. The electrical properties of the nanoparticles have been investigated, revealing a soft electric hysteresis loop with a small coercive field value, making them suitable for photovoltaic applications. Additionally, a compact dielectric resonator antenna based on the nanoparticles has been designed and characterized, showing good impedance matching and high antenna gain and efficiency in the sub-6 GHz frequency band, making it suitable for 5G applications.