An L-shaped frequency reconfigurable MIMO Dielectric Resonator antenna for PCS band applications

This work presents the design of a reconfigurable Multiple Input Multiple Output (MIMO) dielectric resonator antenna for Personal Communication Systems (PCS) bands. The proposed structure consist of L-shape dielectric radiator having parasitic metallic strips along with the wall of the dielectric resonator (DR). The switches are located on the top surface of the L-shaped dielectric resonator antenna (DRA) to achieve re-configurability. A total of six switches are positioned on the top of the design to perform re-configurability in three ways. The proposed antenna offers re-configurability from 1750 MHz to 1870 MHz for return loss below -10 dB which can be used in Korean Personal Communication Systems wireless (PCS) applications. The MIMO parameters like mutual coupling, envelope correlation coefficient, and diversity gain are presented to validate the performance of the antenna. Measurements have been performed to validate the performance of the antenna in terms of return loss and mutual coupling between the two ports. A good agreement between measured and simulated results were found between 1750 MHz and 1850 MHz.