An 8-port MIMO antenna system covering the band of 3–6 GHz for the 5G MIMO mobile handset applications is proposed. The antenna element consists of an open-slot antenna and a T-shaped feeding strip. Also, an L-shaped strip is adopted to improve the impedance bandwidth and achieve miniaturization simultaneously. The measured results show that wide impedance bandwidth, high isolation (>11 dB), high efficiency (>40%) and lower ECC (<0.1) are realized. Finally, the hand-grip effects are investigated by simulation to verify its capability for the industrial applications.
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Liao, S. M., Zhang, B. J., Chen, Z., Han, C. Z., Zhang, F., & Yuan, T. (2019). Wideband miniaturized 8-element sub-6 GHz MIMO antenna system for mobile handset applications. IEICE Electronics Express, 16(23). https://doi.org/10.1587/elex.16.20190631