volume | PIER Journals

Abstract

In this paper, a dual-band multiple-input multiple-output dielectric resonator antenna (DRA) with pattern diversity is presented. L-shape of the DRA produces patterns diversity at the lower band whereas, at the upper band, it is caused by exciting TE^x₁₂₁/TE^y₂₁₁ mode in the DRA. Two copper strips are pasted at the corner of the dielectric radiator to improve matching at both the bands. A cylindrical air-gap introduced in the radiator improves isolation up to 25 dB and 20 dB at lower and upper bands, respectively. The MIMO system possesses pattern diversity and isolation without applying any special decoupling technique. The design covers the WiMAX and WLAN bands at 3.6 and 5.2 GHz, respectively. Simulated and measured reflection coefficients and envelope correlation are in good agreement.

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Dr. Aftab Ahmad Khan

Dr. Mohd Haizal Jamaluddin

Dr. Jamal Nasir

Dr. Rizwan Khan

Dr. Sajid Aqeel

Dr. Jawad Saleem

Dr. Owais