Abstract
A 4(N+1) element dual circularly polarized massive MIMO antenna operating in the Sub-6 GHz frequency band of 3.4-3.8 GHz is presented in this work (where, N=1,2, 3, 4, 5, 6, 7,). A single rectangular-shaped strip of width ‘T’ and length (N(b+10)+b) along with (N+1) ‘I’ -shaped strips are utilized for getting equal reference voltage level in the ground plane of proposed 4(N+1) element MIMO antenna. In this work, simulated results of the proposed MIMO antenna with ‘N=2’ are presented. The proposed MIMO antenna designs can be easily extended to design 4(N+ 1) element massive MIMO antennas by varying ‘N.’ The proposed MIMO antenna (N=2) achieves a satisfactory isolation level greater than 19.4 dB between ports. The maximum isolation level achieved between ports of the proposed MIMO antenna is around 76 dB. The antenna achieves satisfactory diversity performance in terms of both ECC and isolation.
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