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A four-port wideband filtering monopole MIMO array for sub-6 GHz 5G communications

Published online by Cambridge University Press:  21 April 2023

Jasmine Vijithra Ayyappan Open the ORCID record for Jasmine Vijithra Ayyappan [Opens in a new window] ,
Gulam Nabi Alsath Mohammed  and
Sangeetha Subbaraj Open the ORCID record for Sangeetha Subbaraj [Opens in a new window]
Jasmine Vijithra Ayyappan*
Affiliation:
Department of Electronics and Communication Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam 603110, Chennai, Tamilnadu, India
Gulam Nabi Alsath Mohammed
Affiliation:
Department of Electronics and Communication Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam 603110, Chennai, Tamilnadu, India School of Electronics Engineering, Vellore Institute of Technology, Vellore 632014, India
Sangeetha Subbaraj
Affiliation:
School of Electronics Engineering, Vellore Institute of Technology, Vellore 632014, India
*
Corresponding author: Jasmine Vijithra Ayyappan, E-mail: jasminevijithraa@ssn.edu.in
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Abstract

This communication presents the significance of a four-port 2×2 multiple input multiple output antenna operating in mid-band frequency for 5G handheld device application. A microstrip-fed reference truncated decagonal monopole antenna operating at 3.9 GHz and a modified split-ring resonator (SRR)-based low-pass filter that excites at a cut-off frequency of 6.5 GHz are designed. On introducing a stub line in the SRR structure, the proposed filter shows a good out-of-band rejection beyond 6.5 GHz. By integrating the filter into the reference monopole, a wideband filtering monopole with improved stopband performance is obtained. A four-port MIMO array is constructed by orthogonally positioning the antenna with a center-to-center separation of 0.25λ0. To improve isolation, a pair of inverted L-stubs of varying lengths is introduced. The closed loop formed by the interconnection of stubs enhances isolation within the frequency range of 3–3.5 GHz. The fabricated prototype fosters an impedance bandwidth of 66.67%, isolation >18.5 dB, an average suppression of 15 dB, an average peak gain >3.7 dB, envelope correlation coefficient < 0.015, Actual Diversity Gain (ADG) > 9.9 dB, Effective Diversity Gain (EDG) > 8.8 dB, and efficiency >88%. The proposed design is suitable for 5G sub-6 GHz applications such as n48, n77, n78, n79 bands, WiMAX, and LTE bands 42, 43, 46, 47, 48.

Keywords

Isolationmodified split ring resonatormonopole antennastopband characteristicsstub lineswideband filtering
Type
Antenna Design, Modelling and Measurements
Information
International Journal of Microwave and Wireless Technologies , Volume 15 , Issue 9 , November 2023 , pp. 1620 - 1629
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Copyright
Copyright © The Author(s), 2023. Published by Cambridge University Press in association with the European Microwave Association

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References

Chen, C (2022) A wideband coplanar L-probe-fed slot-loaded rectangular filtering microstrip patch antenna with high selectivity. IEEE Antennas and Wireless Propagation Letters 21, 1134–1138. doi: 10.1109/LAWP.2022.3159230.CrossRefGoogle Scholar
Chen, C (2022) A compact wideband endfire filtering antenna inspired by a uniplanar microstrip antenna. IEEE Antennas and Wireless Propagation Letters 21, 853–857.CrossRefGoogle Scholar
Lee, C-H, Chen, H-H, Shih, W-T and Hsu, C-IG (2017) Balanced wideband filtering planar inverted-F antenna design. IEEE Antennas and Wireless Propagation Letters 16, 716–719.CrossRefGoogle Scholar
Yang, W, Chen, S, Xue, Q, Che, W, Shen, G and Feng, W (2019) Novel filtering method based on metasurface antenna and its application for wideband high-gain filtering antenna with low profile. IEEE Transactions on Antennas and Propagation 67, 1535–1544.10.1109/TAP.2018.2889028CrossRefGoogle Scholar
Singh, HV, Siva Prasad, DV and Tripathi, S (2022) Wideband MIMO antenna isolation enhancement using 4th-order cross-coupled decoupling circuit. IEEE Canadian Journal of Electrical and Computer Engineering 45, 114–123.CrossRefGoogle Scholar
Li, Z, Yin, C and Zhu, X (2019) Compact UWB MIMO Vivaldi antenna with dual band-notched characteristics. IEEE Access 7, 38696–38701.CrossRefGoogle Scholar
Zhang, Y-M and Zhang, S (2021) A decoupling and matching network with harmonic suppression for MIMO antennas. 2021 15th European Conference on Antennas and Propagation (EuCAP), pp. 1–4. doi: 10.23919/EuCAP51087.2021.9411003.CrossRefGoogle Scholar
Alsultan, RGS and Yetkin, GÖ (2018) Mutual coupling reduction of E-shaped MIMO antenna with matrix of C-shaped resonators. International Journal of Antennas and Propagation Vol. 2018, Article id: 4814176, 13 pages.CrossRefGoogle Scholar
Nithya, S and Seethalakshmi, V (2022) MIMO antenna with isolation enrichment for 5G mobile information. Mobile Information Systems Vol. 2022, Article id: 1802352, 14 pages.Google Scholar
Qian, J-F, Chen, F-C, Ding, Y-H, Hu, H-T and Chu, Q-X (2019) A wide stopband filtering patch antenna and its application in MIMO system. IEEE Transactions on Antennas and Propagation 67, 654–658.CrossRefGoogle Scholar
Zhang, Y, Zhang, XY and Liu, QH (2020) A six-port dual-function RF device with four-element MIMO antenna array and bandpass filter operations. IEEE Transactions on Antennas and Propagation 68, 4549–4559.10.1109/TAP.2020.2972400CrossRefGoogle Scholar
Soltani, S and Murch, RD (2015) A compact planar printed MIMO antenna design. IEEE Transactions on Antennas and Propagation 63, 1140–1149.CrossRefGoogle Scholar
Raj, U, Madan Kumar, S, Javed, S and Sharma, A (2021) Easily extendable four port MIMO antenna with improved isolation and wide bandwidth for THz applications. Optik – International Journal for Light and Electron Optics 247, Article id: 167910, 15 pages. https://doi.org/10.1016/j.ijleo.2021.167910.CrossRefGoogle Scholar
Kulkarni, J, Desai, A and Sim, C-YD (2021) Wideband four-port MIMO antenna array with high isolation for future wireless systems. International Journal of Electronics and Communications 128, Article id: 53507, 29 pages. https://doi.org/10.1016/j.aeue.2020.153507.CrossRefGoogle Scholar
Thummaluru, SR, Kumar, R and Chaudhary, RK (2019) Isolation and frequency reconfigurable compact MIMO antenna for wireless local area network applications. IET Microwaves, Antennas & Propagation 13(4), 519–525. doi: 10.1049/iet-map.2018.5895.CrossRefGoogle Scholar
Hasan, MM, Islam, MT, Samsuzzaman, M, Baharuddi, MH, Soliman, MS, Alzamil, A, Abu Sulayman, IIM and Shabiul Islam, M (2022) Gain and isolation enhancement of a wideband MIMO antenna using metasurface for 5G sub-6 GHz communication systems. Scientific Reports 12, 9433.CrossRefGoogle ScholarPubMed
Sehrai, A, Asif, M, Ali Shah, W, Khan, J, Ullah, I, Ibrar, M, Jan, S, Alibakhshikenari, M, Falcone, F and Limiti, E (2021) Metasurface-based wideband MIMO antenna for 5G millimeter-wave systems. IEEE Access 9, 125348–125357.CrossRefGoogle Scholar
Aashish Kumar, CSR, Khandelwal, MK and Kanaujia, BK (2019) Low envelope correlation coefficient, enhanced gain, and suppressed mutual coupling in compact 4–port MIMO microstrip antenna loaded with metasurface. Microsystem Technologies 25, 4721–4730.CrossRefGoogle Scholar
Wong, K-L, Chen, J-Z and Li, W-Y (2021) Four-port wideband annular-ring patch antenna generating four decoupled waves for 5G multi-input–multi-output access points. IEEE Transactions on Antennas and Propagation 69, 2946–2951.CrossRefGoogle Scholar
Parchin, NO, Ismael Abdulraheem Al-Yasir, Y, Ali, AH, Elfergani, I, Noras, JM, Rodriguez, J and Abd-Alhameed, RA (2019) Eight-element dual-polarized MIMO slot antenna system for 5G smartphone applications. IEEE Access 7, 15612–15622.CrossRefGoogle Scholar
Molins-Benlliure, J, Antonino-Daviu, E, Cabedo-Fabrés, M and Ferrando-Bataller, M (2021) Four-port wide-band cavity-backed antenna with isolating X-shaped block for sub-6 GHz 5G indoor base stations. IEEE Access 9, 80535–80545.CrossRefGoogle Scholar
Alsath, MGN and Kanagasabai, M (2015) Compact UWB monopole antenna for automotive communications. IEEE Transactions on Antennas and Propagation 63, 4204–4208.CrossRefGoogle Scholar
Sharawi, MS (2017) Current misuses and future prospects for printed multiple-input, multiple-output antenna systems [wireless corner]. IEEE Antennas and Propagation Magazine 59, 162–170.CrossRefGoogle Scholar
Aboelleil, H, Ibrahim, AA and Khalaf, AAM (2021) A compact multiple-input multiple-output antenna with high isolation for wireless applications. Analog Integrated Circuits and Signal Processing 108, 17–24.CrossRefGoogle Scholar
Khan, MS, Naqvi, SA, Iftikhar, A, Asif, SM, Fida, A and Shubair, RM (2020) A WLAN band-notched compact four-element UWB MIMO antenna. International Journal of RF and Microwave Computer-Aided Engineering 30, 10 pages. https://doi.org/10.1002/mmce.22282.CrossRefGoogle Scholar