volume | PIER Journals

Abstract

The article presents a compact size and high isolation with 2×2 MIMO, double flare horn shaped antenna for K and Ka bands of mm-wave applications. The overall size of the MIMO antenna 0.19λ×0.19λ×0.01λ mm³ at a lower frequency has been designed, simulated, fabricated and tested. The proposed MIMO antenna components are arranged parallel with identical shaped to provide a high level of inter-element isolation and 50 W micro strip line feed. The antenna covers 18.61-20.01 GHz in the K-band (18-26.5 GHz) and 21.52-33.91 GHz in the Ka-band (26.5-40 GHz) with impedance bandwidths of 7.2% and 44.5% respectively at port-1 and port-2. Maximum peak gain of 6.5 dBi & 8.1 dBi respectively at port-1 and 6.5 dBi&7.9 dBi at port-2 is observed respectively. Diversity characteristics such as envelope correlation coefficient, diversity gain, total active reflection coefficient and channel capacity loss are determined to validate the considered MIMO antenna's work qualities. The isolation of more than 35 dB indicates that the proposed structure is suitable to use a dual-port MIMO antenna. The recommended structure's investigation revealed a steady performance and a high degree of agreement between simulated and measured findings.

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Dr. Aditya Kumar Singh

Mr. Amrees Pandey

Dr. Piyush Kumar Mishra

Dr. Ram Suchit Yadav