Design of Flower Shaped MIMO Antenna for Sub 6-Ghz 5g Applications

Sivasankari Narasimhan1, Loorthu Rajeshwari S 2, Sibiya M 3

1Associate Professor, Department of ECE, Mepco Schlenk Engineering College

2UG student, Mepco Schlenk Engineering College

3UG student, Mepco Schlenk Engineering College

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Abstract - In this project, the main aim is to do the simulation of a microstrip patch antenna (MIMO  antenna) and to analyze various factors like gain, directivity, return loss, radiation intensity for the frequency of 4 GHz. The simulation of this MIMO antenna is carried out in ANSYS HFSS v2021. Results like return loss, radiation pattern, 3D polar plot, beamwidth, radiated power, accepted power have been obtained using HFSS v2021.  the performance. The proposed structure uses FR-4 material with a dimension of 25 mm × 38 mm. The 2 × 1 MIMO structure resonate at 4 GHz for the sub 6 GHz 5 G communications with directional radiation pattern. The resonating frequency is 4GHz, the return loss is -11.7977 and the isolation loss is -61.5343. In addition the performance of diversity system of MIMO structure including the total active reflection coefficient (TARC), multiplexing efficiency, envelope correlation coefficient (ECC)  (0.03) and diversity gain (DG) at 9.99 are studied. For this proposed MIMO structure all antenna parameters are found that within an acceptable range.

Key Words:  MIMO antenna, Return loss, Envelope correlation coefficient