A ±45° dual-polarized equilateral triangular dielectric resonator antenna

A ±45° dual-polarized dielectric resonator antenna operating at 5.5 GHz is presented. The slant polarization is achieved by edge feeding the equilateral triangular dielectric resonator through a conformal strip. The proposed antenna exhibits an impedance bandwidth of 12.04% (5.23-5.90 GHz) for both the ports and the port-to-port isolation is better than 15 dB throughout the bandwidth. The antenna radiates along the broadside direction and the difference between the co-polar and cross polar field is 15 dB in both the planes. The diversity performance of the antenna is found to be good with envelope correlation coefficient below 0.014. The proposed antenna is suitable for WLAN applications.