1. Jiang, W., Y. Cui, B. Liu, W. Hu, and Y. Xi, "A dual-band MIMO antenna with enhanced isolation for 5G smartphone applications," IEEE Access, Vol. 7, 112554-112563, 2019.
doi:10.1109/ACCESS.2019.2934892

2. Li, Y., C. Y. D. Sim, Y. Luo, and G. Yang, "12-port 5G massive MIMO antenna array in the sub-6 GHz mobile handset for LTE bands 42/43/46 applications," IEEE Access, Vol. 6, 344-354, 2018.
doi:10.1109/ACCESS.2017.2763161

3. Sun, L., H. Feng, Y. Li, and Z. Zhang, "Compact 5G MIMO mobile phone antennas with tightly arranged orthogonal-mode Pairs," IEEE Transactions on Antennas and Propagation, Vol. 66, No. 11, 6364-6369, Nov. 2018.
doi:10.1109/TAP.2018.2864674

4. Azremi, A. A.-H., J. Ilvonen, R. Valkonen, and V. Viikari, "Eight-element antenna array for diversity and MIMO mobile terminal in LTE 3500 MHz band," Microwave and Optical Technology Letters, Vol. 56, No. 6, 1323-1327, 2014.
doi:10.1002/mop.28316

5. Zou, H., Y. Li, C. Y. D. Sim, and G. Yang, "Design of 8 × 8 dual-band MIMO antenna array for 5G smartphone applications," International Journal of RF and Microwave Computer Aided Engineering, 1-12, May 2018.

6. Li, Y., C. Y. D. Sim, Y. Luo, and G. Yang, "12-port 5G massive MIMO antenna array in thesub-6 GHz mobile handset for LTE bands 42/43/46 applications," IEEE Access, Vol. 6, 344-354, 2018.
doi:10.1109/ACCESS.2017.2763161

7. Guo, J., L. Cui, C. Li, and B. Sun, "Side-edge frame printed eight-port dual-band antenna array for 5G smartphone applications," IEEE Transactions on Antennas and Propagation, Vol. 6, No. 12, 7412-7417, 2018.
doi:10.1109/TAP.2018.2872130

8. Li, Y., C. Y. D Sim, Y. Luo, and G. Yang, "Multiband 10-antenna array for sub-6 GHz MIMO applications in 5G smartphones," IEEE Access, Vol. 6, 344-354, Jun. 2018.
doi:10.1109/ACCESS.2017.2763161

9. Li, M. Y., Y. L. Ban, Z. Q. Xu, G. Wu, C. Y. D. Sim, K. Kang, and Z. F. Yu, "Eight port orthogonally dual-polarized antenna array for 5G smartphone applications," IEEE Transactions on Antenna and Propagation, Vol. 64, No. 9, 3820-3830, 2016.
doi:10.1109/TAP.2016.2583501

10. Parchin, N. O., Y. I. A. Al-Yasir, A. H. Ali, I. Elfergani, J. M. Noras, and R. A. Abd-Alhameed, "Eight-element dual-polarised MIMO slot antenna system for 5G smartphone applications," IEEE Access, 15612-15622, 2019.
doi:10.1109/ACCESS.2019.2893112

11. Cui, L., J. Guo, Y. Liu, and C. Sim, "An 8-element dual-band MIMO antenna with decoupling stub for 5G smartphone applications," IEEE Antennas and Wireless Propagation Letters, Vol. 18, No. 10, 2095-2099, Oct. 2019.
doi:10.1109/LAWP.2019.2937851

12. Li, Y., C. Sim, Y. Luo, and G. Yang, "High isolation 3.5 GHz eight antenna MIMO array us balanced open-slot antenna element for 5G smartphones," IEEE Transactions on Antenna and Propagation, Vol. 67, No. 6, 3820-3830, 2019.
doi:10.1109/TAP.2019.2902751

13. Tian, R., B. K. Lau, and Z. Ying, "Multiplexing efficiency of MIMO antennas," IEEE Antennas and Wireless Propagation Letters, Vol. 10, 183-186, 2011.
doi:10.1109/LAWP.2011.2125773

14. Sharawi, M. S., "Printed multi-band MIMO antenna systems and their performance metrics," IEEE Antennas and Propagation Magazine, Vol. 55, No. 5, 218-232, Oct. 2013.
doi:10.1109/MAP.2013.6735522

15. Dong, J., S. Wang, and J. Mo, "Design of a twelve-port MIMO antenna system for multi-mode 4G/5G smartphone applications based on characteristic mode analysis," IEEE Access, Vol. 8, 90751-90759, 2020.
doi:10.1109/ACCESS.2020.2994068

16. Yang, M., Y. Sun, and J. Zohou, "Hybrid antenna array for 4G/5G smartphone applications," Progress In Electromagnetics Research M, Vol. 96, 109-118, 2020.
doi:10.2528/PIERM20071202

17. Wei, G. and Q. Feng, "Dual-band mimo antenna array for compact 5G smartphones," Progress In Electromagnetics Research C, Vol. 99, 157-165, 2020.
doi:10.2528/PIERC19123002

18. Wang, H., R. Zhang, Y. Luo, and G. Yang, "Compact eight-element antenna array for triple-band MIMO operation in 5G mobile terminals," IEEE Access, Vol. 8, 19433-19449, 2020.
doi:10.1109/ACCESS.2020.2967651