Abstract
The millimeter-wave spectrum is deemed as an attractive solution to deal with the urgency of the high-data-rate needed to construct the 5G technology systems. Accordingly, this research work presents a high-isolation ultra-wideband dual-port MIMO antenna, and operates at the pioneer 28 GHz band for millimeter-wave 5G applications. The individual antenna consists of a new ring-shaped monopole antenna built on the low loss Rogers RT Duroid 5880 laminate, well-refined to bear a large bandwidth of 10 GHz from 24 to 34 GHz with suitable radiation features including a high radiation efficiency up to 99% and good comparable gain reaches to 5.9 dB. The single-antenna unit is carefully investigated, then exploited to propose a compact orthogonally placed two-port MIMO antenna with small total volume of 11 × 20.5 × 0.254mm3 while provides a strong isolation surpassing 25 dB. The MIMO diversity performance has been neatly evaluated in terms of various essential metrics, where an impressive performance has been proven. The simulation results are experimentally validated for both single and MIMO structures where a great harmony is demonstrated. Moreover, the impact of connected ground plane scheme on the MIMO antenna performance is also discussed, where a gratifying outcomes are accomplished. Besides, the proposed two-element MIMO antenna is further extended to four and eight elements MIMO antennas with connected ground plane configuration. A pretty simple decoupling structures are used, whereas a very satisfying results are fulfilled. The achieved outcomes make the proposed design superior to many existing designs and highly fit for the 5G wireless systems.
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All data generated or analyzed during this study are included in the manuscript. There is no separated data.
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Khabba, A., Amadid, J., Mohapatra, S. et al. UWB dual-port self-decoupled o-shaped monopole MIMO antenna with small-size easily extendable design and high diversity performance for millimeter-wave 5G applications. Appl. Phys. A 128, 725 (2022). https://doi.org/10.1007/s00339-022-05881-7
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DOI: https://doi.org/10.1007/s00339-022-05881-7