volume | PIER Journals

Abstract

In order to improve the distance of 5th Generation (5G) Mobile Communication Technology) millimeter-wave outdoor point-to-point relay transmission, a 2-port Multiple Input Multiple Output (MIMO) antenna with high gain and low sidelobe level characteristics is designed at 39 GHz. The antenna is designed using the Taylor synthesis method and slotting technology to increase the antenna gain and lower the sidelobe level. Loading hollow T-shaped branches reduces the mutual coupling between MIMO antennas. The measured results are basically in line with the simulation ones. The results show that the bandwidth of the antenna is 38.1 ~ 39.3 GHz; the isolation degree is more than 50 dB; the antenna gain is 25.75 dBi at 39 GHz; the E-plane and H-plane sidelobe levels are -20.5 dB and -20 dB, respectively. Furthermore, the Envelope Correlation Coefficient (ECC) is less than 0.022; the Diversity Gain (DG) is more than 9.89; and the radiation efficiency reaches 90% in the working frequency band. Therefore, this antenna can be used as a long-distance relay antenna in 5G millimeter-wave communication system with high gain and low sidelobe level characteristics based on meeting the requirements of the MIMO antenna.

1. Raheel, K., A. Altaf, A. Waheed, S. H. Kiani, D. A. Sehrai, F. Tubbal, and R. Raad, "E-shaped H-slotted dual band mmWave antenna for 5G technology," Electronics, Vol. 10, No. 1, 1019, 2021.
doi:10.3390/electronics10091019

2. Zhu, X., "Study on the propagation characteristics of outdoor microcell millimeter wave 39 GHz," Nanjing University of Posts And Telecommunications, 2018.

3. Yang, T., X. Yuan, and I. B. Collings, "Reduced-dimension cooperative precoding for MIMO two-way relay channels," IEEE Transactions on Wireless Communications, Vol. 11, No. 11, 4150-4160, 2012.
doi:10.1109/TWC.2012.092112.120345

4. Xu, S. and Y. Hua, "Optimal design of spatial source-and-relay matrices for a non-regenerative two-way MIMO relay system," IEEE Transactions on Wireless Communications, Vol. 10, No. 5, 1645-1655, 2011.
doi:10.1109/TWC.2011.030911.101173

5. Vaze, R. and R. W. Heath, "On the capacity and diversity-multiplexing tradeoff of the two-way relay channel," IEEE Transactions on Information Theory, Vol. 57, No. 5, 4219-4234, 2011.
doi:10.1109/TIT.2011.2146710

6. Gao, M. M., Y. Song, J. C. Nan, et al. "Research of a compact UWB-MIMO antenna with X band-rejected," Journal of Electronic Measurement and Instrumentation, Vol. 36, No. 1, 149-156, 2022.

7. Nan, J. C., X. X. Han, M. M. Gao, et al. "Design of miniaturized UWB-MIMO antenna based on DGS," Journal of Electronic Measurement and Instrumentation, Vol. 36, No. 5, 89-95, 2022.

8. Ali, W., S. Das, H. Medkour, et al. "Planar dual-band 27/39 GHz millimeter-wave MIMO antenna for 5G applications," Microsystem Technologies, Vol. 27, No. 1, 283-292, 2021.
doi:10.1007/s00542-020-04951-1

9. Ali, M., L. E. G. Munoz, G. Carpintero, S. Nellen, and B. Globisch, "Millimetre-wave photonic emitter integrating a PIN-PD and planar high gain antenna," Proceedings of the IEEE Third International Workshop on Mobile Terahertz Systems (IWMTS), 1-5, Essen, Germany, July 2020.

10. Gao, F. L., J. Feng, C. Liao, et al. "Design of planar antenna array with broad beamwidth at 24 GHz," Electronic Measurement Technology, Vol. 42, No. 1, 112-115, 2019.

11. Li, Y. J., H. Sun, X. X. Yang, et al. "28 GHz microstrip array antenna with CSRR," Electronic Measurement Technology, Vol. 41, No. 18, 80-84, 2018.

12. Khalid, M., S. I. Naqvi, N. Hussain, et al. "4-port MIMO antenna with defected ground structure for 5G millimeter wave applications," Electronics, Vol. 9, No. 1, 71, 2020.
doi:10.3390/electronics9010071

13. Manan, A., S. I. Naqvi, M. A. Azam, et al. "MIMO antenna array for mm-wave 5G smart devices," 2019 22nd International Multitopic Conference (INMIC), 1-5, Islamabad, Pakistan, 2019.

14. Khan, J., S. Ullah, U. Ali, et al. "Design of a millimeter-wave MIMO antenna array for 5G communication terminals," Sensors, Vol. 22, No. 7, 2768, 2022.
doi:10.3390/s22072768

15. Wu, D., "76-81 GHz planar antenna development and utilization for automotive radar applications,", M.S. Thesis, Department of Microtechnology and Nanoscience, Chalmers University of Technology, Gothenburg, Sweden, 2016.

16. Wang, J., Y. N. Zheng, and Z. Y. He, Antenna Array Theory and Engineering Applications, Publishing House of Electronics Industry, 2015.

17. Zhang, L., W. Zhang, and Y. P. Zhang, "Microstrip grid and comb array antennas," IEEE Transactions on Antennas and Propagation, Vol. 59, No. 11, 4077-4084, 2011.
doi:10.1109/TAP.2011.2164216

18. Zhang, Q., L. Wang, and X. Zhang, "Millimeter-wave microstrip comb-line antenna array for automotive radar," 2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE), 1-3, Hangzhou, China, December 2018.

19. Tariq, S., S. I. Naqvi, N. Hussain, et al. "A metasurface-based MIMO antenna for 5G millimeter-wave applications," IEEE Access, Vol. 9, 51805-51817, 2021.
doi:10.1109/ACCESS.2021.3069185

20. Subitha, D., S. Velmurugan, M. V. Lakshmi, et al. "Development of Rogers RT/Duroid 5880 substrate-based MIMO antenna array for automotive radar applications," Advances in Materials Science and Engineering, Vol. 2022, 4319549, 2022.

21. Zhou, X., H. Zhai, L. Xi, et al. "A low-profile four-element MIMO antenna array with new decoupling structures," Microwave and Optical Technology Letters, Vol. 60, No. 10, 2511-2516, 2018.
doi:10.1002/mop.31359

22. Tsao, Y. F., A. Desai, and H. T. Hsu, "Dual-band and dual-polarization CPW Fed MIMO antenna for fifth-generation mobile communications technology at 28 and 38 GHz," IEEE Access, Vol. 10, 46853-46863, 2022.
doi:10.1109/ACCESS.2022.3171248

Dr. Mingming Gao

Dr. Hongliang Niu

Dr. Jing Chang Nan

Dr. Wen Hui Liu

Dr. Chun Li Liu