volume | PIER Journals

Abstract

Various multiple-input multiple-output (MIMO) antenna systems for vehicles are presented in this paper usingtwo uniquely designed elements: low profile wideband Planar Inverted-F antenna (PIFA), and compact wideband monopole for automotive application in the sub-6 GHz 5G systems and Vehicle-to-Everything (V2X) communications that operate on the frequency range from 617 MHz to 6 GHz. This paper presents different MIMO configurations to be used in a low-profile housing or a shark fin style on the vehicle's roof. Each MIMO system achievesa satisfactory MIMO performance across the whole band withsuitable physical dimensions. The envelope correlation coefficient (ECC) and diversity gain (DG) are calculated using MATLAB in each MIMO configuration as they represent the two key factors in the MIMO performance. Simulation results are presented along with measured data on 1-meter rolled-edge ground plane (GND) and on vehicle's roof from properly cut metal sheet prototypes. The results are discussed in terms of VSWR, passive isolation between elements, combined radiation patterns, port-efficiencies, ECC and DG.

1. Malik, J., D. Nagpal, and M. V. Kartikeyan, "MIMO antenna with omnidirectional pattern diversity," Electronics Letters, Vol. 52, No. 2, 102-104, Jan. 21, 2016.
doi:10.1049/el.2015.3063 Google Scholar

2. Dama, Y. A. S., R. A. Abd-Alhameed, S. M. R. Jones, D. Zhou, N. J. McEwan, M. B. Child, and P. S. Excell, "An envelope correlation formula for (N, N) MIMO antenna arrays using input scattering parameters, and including power losses," International Journal of Antennas Propagation, Vol. 2011, Article ID 421691, 7 pages, 2011. Google Scholar

3. Elshirkasi, A. M., A. Abdullah Al-Hadi, M. F. Mansor, R. Khan, and P. J. Soh, "Envelope correlation coefficient of a two-port MIMO terminal antenna under uniform and Gaussian angular power spectrum with user's hand effect," Progress In Electromagnetics Research C, Vol. 92, 123-136, 2019.
doi:10.2528/PIERC19011006 Google Scholar

4. Zhekov, S. S., A. Tatomirescu, E. Foroozanfard, and G. F. Pedersen, "Experimental investigation on the effect of user's hand proximity on a compact ultrawideband MIMO antenna array," IET Microwaves, Antennas Propag., Vol. 10, No. 13, 1402-1410, 2016.
doi:10.1049/iet-map.2016.0054 Google Scholar

5. Sharawi, M., A. Hassan, and M. Khan, "Correlation coefficient calculations for MIMO antenna systems: A comparative study," International Journal of Microwave and Wireless Technologies, Vol. 9, No. 10, 1991-2004, 2017.
doi:10.1017/S1759078717000903 Google Scholar

6. Arianos, S., G. Dassano, F. Vipiana, and M. Orefice, "Design of multi-frequency compact antennas for automotive communications," IEEE Transactions on Antennas and Propagation, Vol. 60, No. 12, 5604-5612, Dec. 2012.
doi:10.1109/TAP.2012.2213052 Google Scholar

7. Artner, G., W. Kotterman, G. Del Galdo, and M. A. Hein, "Automotive antenna roof for cooperative connected driving," IEEE Access, Vol. 7, 20083-20090, 2019.
doi:10.1109/ACCESS.2019.2897219 Google Scholar

8. Vaughan, R. G. and J. B. Andersen, "Antenna diversity in mobile communications," IEEE Trans. Veh. Technol., Vol. 36, No. 4, 149-172, 1987.
doi:10.1109/T-VT.1987.24115 Google Scholar

9. Beegum, S. F. and S. K. Mishra, "Compact WLAN band-notched printed ultrawideband MIMO antenna with polarization diversity," Progress In Electromagnetics Research C, Vol. 61, 149-159, 2016. Google Scholar

10. Gao, Y., X. Chen, Z. Ying, and C. Parini, "Design and performance investigation of a dual-element PIFA array at 2.5 GHz for MIMO terminal," IEEE Transactions on Antennas and Propagation, Vol. 55, No. 12, 3433-3441, Dec. 2007.
doi:10.1109/TAP.2007.910353 Google Scholar

11. Yacoub, A., M. Khalifa, and D. N. Aloi, "Wide bandwidth low profile PIFA antenna for vehicular sub-6 GHz 5G and V2X wireless systems," Progress In Electromagnetics Research C, Vol. 109, 257-273, 2021.
doi:10.2528/PIERC21010609 Google Scholar

12. Kwon, O., R. Song, and B. Kim, "A fully integrated shark-fin antenna for MIMO-LTE, GPS, WLAN, and WAVE applications," IEEE Antennas and Wireless Propagation Letters, Vol. 17, No. 4, 600-603, Apr. 2018.
doi:10.1109/LAWP.2018.2805681 Google Scholar

13. Kammakattu, S., P. Bora, M. Mudaliar, Y. Dhanade, and B. Madhav, "Linear array Yagi-Uda 5G antenna for vehicular application," International Journal of Engineering & Technology, Vol. 7, 513-517, 2017. Google Scholar

14. Franchina, V., et al., "A compact 3D antenna for automotive LTE MIMO applications," 2017 IEEEAPS Topical Conference on Antennas and Propagation in Wireless Communications (APWC), 326-329, Verona, 2017. Google Scholar

15. Hasturkoglu, S., M. Almarashli, and S. Lindenmeier, "A compact wideband terrestial MIMOantenna set for 4G, 5G, WLAN and V2X and evaluation of its LTE-performance in an urban region," 2019 13th European Conference on Antennas and Propagation (EuCAP), 1-5, Krakow, Poland, 2019. Google Scholar

16. Heiman, A., A. Badescu, and A. Saftoiu, "A new multiple input multiple output V2V automotive antenna for long term evolution band applications," 2018 International Symposium on Fundamentals of Electrical Engineering (ISFEE), 1-5, Bucharest, Romania, 2018. Google Scholar

17. Guan, N., H. Tayama, M. Ueyama, Y. Yoshijima, and H. Chiba, "A roof automobile module for LTE-MIMO antennas," 2015 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC), 387-391, Turin, 2015.
doi:10.1109/APWC.2015.7300160 Google Scholar

18. Thiel, A., L. Ekiz, O. Klemp, and M. Schultz, "Automotive grade MIMO antenna setup and performance evaluation for LTE-communications," 2013 International Workshop on Antenna Technology (iWAT), 171-174, Karlsruhe, 2013. Google Scholar

19. Demien, C. and R. Sarkis, "Design of shark fin integrated antenna systems for automotive applications," 2019 PhotonIcs & Electromagnetics Research Symposium — Spring (PIERS-Spring), 620-627, Rome, Italy, 2019. Google Scholar

20. Song, H. J., et al., "Evaluation of vehicle-level MIMO antennas: Capacity, total embedded efficiency, and envelope correlation," 2014 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC), 89-92, Palm Beach, 2014. Google Scholar

21. Preradovic, D. and D. N. Aloi, "Cross polarized 2 × 2 LTE MIMO system for automotive shark fin application," The Applied Computational Electromagnetics Society (ACES), Vol. 35, No. 10, 1207-1216, Oct. 2020.
doi:10.47037/2020.ACES.J.351014 Google Scholar

22. Jonah, O., "5G antenna for automotive applications," 2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, 1493-1494, 2020.
doi:10.1109/IEEECONF35879.2020.9330087 Google Scholar

23. Potti, D., et al., "A novel optically transparent UWB antenna for automotive MIMO communications," IEEE Transactions on Antennas and Propagation, 2020. Google Scholar

24. Liu, Y., Z. Ai, G. Liu, and Y. Jia, "An integrated shark-fin antenna for MIMO-LTE, FM, and GPS applications," IEEE Antennas and Wireless Propagation Letters, Vol. 18, No. 8, 1666-1670, Aug. 2019.
doi:10.1109/LAWP.2019.2927019 Google Scholar

Dr. Ahmad Yacoub

Dr. Mohamed Khalifa

Dr. Daniel N. Aloi