Dual-polarized quasi-cubic dielectric resonator antenna array

A 2×2 dual-polarized array of aperture-coupled quasi-cubic DRA is presented in this letter. Good performances have been obtained by using pair-wise anti-phase feeding network. The measured 10-dB impedance bandwidth is 9.6% from 5.94 GHz to 6.54 GHz for horizontal port, and about 11.3% from 5.81GHz to 6.51 GHz for vertical port. The measured radiation patterns of both ports are also presented. The radiation patterns in the bandwidth are stable and the peak gains are about 11.5dB for both feed ports.