In 1939, R. D. Richtmyer first demonstrated that the un-metalized dielectric object could function as a microwave resonator similar to the metallic cavity resonator and he coined the term “dielectric resonators (DRs)” for the first time. The cylindrical dielectric resonator antenna (DRA) garnered significant global attention following its first systematic investigation in 1983. In comparison to conventional microstrip antennas, it exhibit promising attributes including compact size, comparatively wider bandwidth, high radiation efficiency (attributable to minimal conductor loss and surface wave generation), and ease of excitation. Being a volumetric radiator (3D structure), the DR structure provides more flexibility and degrees of freedom to design the antenna with specific requirements.
In this particular domain, we have investigated various non-canonical configurations of the DRAs for both wideband and multi-band functionalities. The designs have also been utilized for the implementation of 2 and 4-element Multiple-Input Multiple-Output (MIMO) configurations, which aim to achieve spatial and polarization diversity.
In this particular domain, we have investigated various non-canonical configurations of the DRAs for both wideband and multi-band functionalities. The designs have also been utilized for the implementation of 2 and 4-element Multiple-Input Multiple-Output (MIMO) configurations, which aim to achieve spatial and polarization diversity.
