An electromagnetic bandgap structure assisted MIMO antenna with an optimisation driven hybrid beam forming model
by Minal K. Pawar; Suhas S. Patil
International Journal of Ad Hoc and Ubiquitous Computing (IJAHUC), Vol. 45, No. 3, 2024

Abstract: This article brings a novel antenna design capability to produce high beam-forming with low mutual coupling (MC) by maximising bandwidth for 5G technology. The proposed antenna is designed with an 'a' shaped 4-port MIMO having a square-shaped patch above the substrate. This research proposes a novel enhanced social ski-driver algorithm with a linear searching-analog phase alignment (ESSDA-LSAPA) method for optimising the beam-forming angles and phases. The outcome obtained from previous optimised angle and beam forming phases is inputted into the proposed HFSS software. Finally, an optimised beam angle and phases are obtained from the proposed 4-port MIMO antenna. The radiation efficiency obtained by the proposed antenna design is about 94%. Furthermore, the proposed antenna design obtains the return loss (< -10 dB), the gain of 9.4 dB, envelope correlation coefficient (ECC < 0.5), total active reflection coefficient (TARC< -10 dB), diversity gain (DG > 9.9 dB), channel capacity loss (CLL < 0.4) and mean effective gain (MEG < -3 dB) at 31 GHz.

Online publication date: Thu, 21-Mar-2024

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