Indonesian Journal of Electrical Engineering and Computer Science
Vol 28, No 3: December 2022

Quadruple band MIMO dielectric resonator antenna for 5G SUB-6 GHz applications

Nur Atika Bazadry (GITN Putrajaya Campus Network (PCN))
Hasliza A. Rahim (Universiti Malaysia Perlis (UniMAP))
Mohd Najib Mohd Yasin (Universiti Malaysia Perlis (UniMAP))
Mohamedfareq Abdulmalek (University of Wollongong in Dubai)



Article Info

Publish Date
01 Dec 2022

Abstract

A quadruple band with L-slotted MIMO square dielectric resonator antenna (SDRA) for Fifth Generation (5G) applications at the sub-6 GHz band which can cover 5G New Radio band N77 (3.3 – 4.2) GHz and N79 (4.4 – 5) GHz. The proposed structure consists of a single SDRA which mounted on a substrate excited by an aperture slot underneath Dielectric Resonators (DR)s. The performance of SDRA is improved by introducing L shaped slots on the central part of DRA. Results show that the MIMO SDRA antenna achieves |S11|< -10 dB and S21<= -15 dB for all resonant frequencies at 3.5 GHz, 4 GHz, 4.6 GHz and 5 GHz, indicating a good performance of the antenna at the desired frequencies. The maximum realized gain is 5.61 dB and 5.01 dB at port 1, 4 GHz and port 2, 4.6 GHz, respectively. The radiation efficiencies are acceptable for all resonant frequencies. Moreover, a low (< 0.1) envelop correlation coefficient, and about 10 dB of diversity gain at both desired frequencies. Thus, the antenna can be used for 5G sub-6 GHz applications. 

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