Broadband MIMO Rectangular Dielectric Resonator Antenna With A Decoupling Device

A MIMO dielectric resonator (DR) antenna DRA is designed using a common-plane waveguide (CPW) feed. The isolation improvement was obtained with the improved CPW feed and the square hollow ring in the suggested structure. On this basis, the two dielectric layers are added above the original DRAs to further reduce the mutual coupling between them through the interaction of the electromagnetic field. The final results are obtained from a simulation of the prototype.