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This paper demonstrates a novel 8-element MIMO antenna, providing improved bandwidth and isolation for 5G applications.
This paper demonstrates an eight-element wideband MIMO antenna system for a 5G wireless communication applications. The MIMO design configuration has eight inverted L-type radiators arranged on a rectangular substrate to provide a bandwidth of 32% (2.96–4.08 GHz). It operates in the 5G n48 band, n78 band, and parts of the n77 band. To enhance the impedance bandwidth of the antenna, four circular ring slots and eight inverted L-type slots have been integrated into the ground plane. Incorporating rectangular metallic strips to the stepped rectangular monopole antennas further improves impedance bandwidth and isolation. The novel 5G MIMO antenna exhibits isolation exceeding 16 dB, radiation efficiency around 74%, and peak gain ranging from 3.4 dBi to 4.6 dBi in the desired band. The other parameters, CCL, ECC and TARC are below the acceptable range. This result indicates that the suggested antenna is well suited for 5G MIMO applications.
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Das et al. (2025) studied this question.
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