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Compact 8-port EMSIW MIMO antenna with high isolation for sub-6 GHz communication systems

Published online by Cambridge University Press:  10 February 2025

Gunjan Srivastava Open the ORCID record for Gunjan Srivastava [Opens in a new window] ,
Vimal Kumar  and
Akhilesh Mohan Open the ORCID record for Akhilesh Mohan [Opens in a new window]
Gunjan Srivastava
Affiliation:
Department of Electronics and Communication Engineering, Graphics Era (Deemed to be) University Dehradun, Dehradun, India
Vimal Kumar
Affiliation:
Department of Electronics and Communication Engineering, Indian Institute of Technology Roorkee, India
Akhilesh Mohan*
Affiliation:
Department of Electronics and Communication Engineering, Indian Institute of Technology Roorkee, India
*
Corresponding author: Akhilesh Mohan; Email: [email protected]
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Abstract

A compact 8-port eighth-mode substrate-integrated waveguide (EMSIW) multiple-input multiple-output (MIMO) antenna is presented in this paper. It consists of eight EMSIW cavities placed side by side sharing their open-ended edges which are separated by rectangular slots. High isolation (>22 dB) between the antenna elements over the entire operating band is obtained by the strategic placement of rectangular slots and vias. The open-ended region of EMSIW cavity resonator and the edges of the diagonal slots help in the excitation of TE110 mode at 5.5 GHz. The simulated bandwidth of MIMO antenna is 180 MHz, while the measured bandwidth is 220 MHz. The proposed MIMO antenna system has potential applications for sub-6 GHz communication systems.

Keywords

8-portantennaEMSIWlow mutual couplingMIMO
Type
Research Paper
Information
International Journal of Microwave and Wireless Technologies , First View , pp. 1 - 7
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Copyright
© The Author(s), 2025. Published by Cambridge University Press in association with The European Microwave Association.

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References

Jensen, MA and Wallace, JW (2004) A review of antennas and propagation for MIMO wireless communications. IEEE Transactions on Antennas and Propagation 52, 2810–2824. doi: 10.1109/TAP.2004.835272CrossRefGoogle Scholar
Sharawi, MS (2014) Printed MIMO Antenna Engineering. Norwood, MA, USA: Artech House.Google Scholar
Bozzi, M, Georgiadis, A and Wu, K (2011) Review of substrate-integrated waveguide circuits and antennas. IET Microwaves, Antennas & Propagation 5, 909–920. doi: 10.1049/iet-map.2010.0463CrossRefGoogle Scholar
Niu, B-J and Cao, Y-J (2020) Bandwidth-enhanced four-antenna MIMO system based SIW cavity. Electronics Letters 56, 643–645. doi: 10.1049/el.2020.0799CrossRefGoogle Scholar
Zhai, G, Chen, ZN and Qing, X (2016) Mutual coupling reduction of a closely spaced four-element MIMO antenna system using discrete mushrooms. IEEE Transactions on Antennas and Propagation 64, 3060–3067Google Scholar
Zhai, G, Chen, ZN and Qing, X (2015) Enhanced isolation of a closely spaced four-element MIMO antenna system using metamaterial mushroom. IEEE Transactions on Antennas and Propagation 63, 3362–3370. doi: 10.1109/TAP.2015.2434403CrossRefGoogle Scholar
Wei, M, Liu, H, Wan, T and Liu, Y (2017) “A compact four-element MIMO antenna based on HMSIW slot antenna,” in Proc. 11th Eur. Conf. Antennas Propag., Paris, France, 2118–2120.CrossRefGoogle Scholar
Nandi, S and Mohan, A (2021) A compact eighth-mode circular SIW cavity-based MIMO antenna. IEEE Antennas and Wireless Propagation Letters 20, 1834–1838. doi: 10.1109/LAWP.2021.3098711CrossRefGoogle Scholar
Deng, C and Lv, X (2019) Eight-element MIMO Antenna with Tightly-arranged Pairs for 5G Mobile Terminal, 2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, Atlanta, GA, USA, 705–706.CrossRefGoogle Scholar
Parchin, NO, et al. (2019) Eight-element dual-polarized MIMO slot antenna system for 5G smartphone applications. IEEE Access 7, 15612–15622. doi: 10.1109/ACCESS.2019.2893112CrossRefGoogle Scholar
Morsy, MM (2023) Compact eight-element MIMO antenna array for sub 6 GHz mobile applications. SN Applied Sciences 5, 261. doi: 10.1007/s42452-023-05465-xCrossRefGoogle Scholar
Sharawi, MS (2013) A 5-GHz 4/8-element MIMO antenna system for IEEE 802.11AC devices. Microwave and Optical Technology Letters 55, 1589–1594. doi: 10.1002/mop.27611CrossRefGoogle Scholar
Mishra, M, Chaudhuri, S, Kshetrimayum, RS, Sharawi, MS and Kishk, AA (2023) A highly efficient and low-mutual coupling partial π/8 SIW cavity-based 8-port MIMO antenna. IEEE Antennas and Wireless Propagation Letters 7, 1721–1725. doi: 10.1109/LAWP.2023.3262159CrossRefGoogle Scholar
Al-Hadi, AA, Ilvonen, J, Valkonen, R and Viikari, V (2014) Eight-element antenna array for diversity and MIMO mobile terminal in LTE 3500MHz band. Microwave and Optical Technology Letters 56, 1323–1327. doi: 10.1002/mop.28316CrossRefGoogle Scholar
Zhao, A and Ren, Z (2019) Size reduction of self-isolated MIMO antenna system for 5G mobile phone applications. IEEE Antennas and Wireless Propagation Letters 18, 152–156. doi: 10.1109/LAWP.2018.2883428CrossRefGoogle Scholar
Kumar, K and Dwari, S (2019) Compact four-element MIMO SIW cavity backed slot antenna with high front-to-back ratio. International Journal of RF and Microwave Computer-Aided Engineering 29, e21512. doi: 10.1002/mmce.21512CrossRefGoogle Scholar
Niu, B-J and Tan, J-H (2019) Compact self-isolated MIMO antenna system based on quarter-mode SIW cavity. Electronics Letters 55, 574–576. doi: 10.1049/el.2019.0606CrossRefGoogle Scholar
Xiao, S, Wang, B-Z, Shao, W and Zhang, Y (2005) Bandwidth-enhancing ultralow-profile compact patch antenna. IEEE Transactions on Antennas and Propagation 53, 3443–3447. doi: 10.1109/TAP.2005.858838CrossRefGoogle Scholar
Niu, B-J and Tan, J-H (2019) SIW cavity MIMO antenna using hybrid boundaries and anti-symmetric U-shaped slots. Progress in Electromagnetics Research Letters 86, 67–72.CrossRefGoogle Scholar