Four Port Multiple Input Multiple Output DRA for WLAN/WiMAX Applications

A four-port cylindrical dielectric resonator antenna (CDRA) for WLAN/WiMAX has been described in this letter. Four cylindrical dielectric resonator antennas are placed on the upper part of the substrate and are fed with an aid of a rectangular aperture such that any two adjacent radiating antennas are orthogonal to each other. The antenna works in the frequency range of 5.03 to 5.92GHz. At the resonant frequency, the reduced mutual coupling is depicted to be better than -30dB. The diversity performance of the stated radiator is also found within optimal limits.