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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2026-08-12
A Dual Broadband Eight-Element MIMO Antenna with R-Shaped Slot Loaded Patch and Grid-Shaped Modified Ground Plane for Sub-6 GHz 5G Applications
By
Sunera G. Kargathara,

    Dr. Sunera G. Kargathara

    Department of Information and Communication Technology

    Marwadi University

    India

    Homepage

Shobhitkumar Kiritkumar Patel,

    Dr. Shobhitkumar Kiritkumar Patel

    Department of Computer Engineering

    Marwadi University

    India

    Homepage

Sudipta Das

    Dr. Sudipta Das

    Electronics and Communication Engineering

    IMPS College of Engineering and Technology

    India

    Homepage

Progress In Electromagnetics Research C, Vol. 172, 312-323, 2026
doi:10.2528/PIERC26052705 | Google Scholar

Abstract
A miniature-sized dual-broadband eight-element Multiple-Input Multiple-Output (MIMO) antenna with R-shaped radiators in the sub-6 GHz band for 5G applications is presented in this research article. The proposed novel MIMO configuration includes 4 × 2 antennas mounted on a 60 × 112 mm2 substrate with each radiator measuring 28 × 28 mm2. Modified Ground Structure (MGS) is employed to enhance impedance matching and reduce the effect of electromagnetic interaction between closely placed radiators. The MGS and optimal R-shape design enable this MIMO antenna to work at dual frequencies. Two resonances at frequencies of 1.8 GHz (1.67-2.03 GHz) and 4.4 GHz (4.15-4.75 GHz) are observed in both simulations and measurements, and the maximum reflection coefficient is recorded at -28 dB, which implies that excellent impedance matching is achieved for the designed eight-port radiator. This antenna design offers isolation better than 15 dB in both operating frequency bands (1.67-2.03 GHz and 4.15-4.75 GHz), with a maximum isolation of about 40 dB at certain frequencies. Moreover, it is found that the proposed antenna has good diversity parameters with Envelope Correlation Coefficient (ECC) less than 0.01 and Diversity Gain (DG) around 10 dB. The results show that this novel antenna is capable of providing a suitable balance among small size, strong isolation, stability of radiation, and enhanced diversity performance, thereby becoming an excellent choice for sub-6 GHz 4G/LTE cellular communications and 5G applications.
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Citation
Sunera G. Kargathara, Shobhitkumar Kiritkumar Patel, and Sudipta Das, "A Dual Broadband Eight-Element MIMO Antenna with R-Shaped Slot Loaded Patch and Grid-Shaped Modified Ground Plane for Sub-6 GHz 5G Applications," Progress In Electromagnetics Research C, Vol. 172, 312-323, 2026.
doi:10.2528/PIERC26052705
References

1. Abubakar, Hassan Sani, Zhiqin Zhao, Boning Wang, Saad Hassan Kiani, Naser Ojaroudi Parchin, and Bandar Hakim, "Eight-port modified E-slot MIMO antenna array with enhanced isolation for 5G mobile phone," Electronics, Vol. 12, No. 2, 316, 2023.
doi:10.3390/electronics12020316        Google Scholar

2. Addepalli, Tathababu, Maragani Satish Kumar, Chandrasekhar Rao Jetti, Naveen Kumar Gollamudi, Bandi Kiran Kumar, and Jayshri Kulkarni, "Fractal loaded, novel, and compact two- and eight-element high diversity MIMO antenna for 5G sub-6 GHz (N77/N78 and N79) and WLAN applications, verified with TCM analysis," Electronics, Vol. 12, No. 4, 952, 2023.
doi:10.3390/electronics12040952        Google Scholar

3. Srivastava, Gunjan, Vimal Kumar, and Akhilesh Mohan, "Compact 8-port EMSIW MIMO antenna with high isolation for sub-6 GHz communication systems," International Journal of Microwave and Wireless Technologies, Vol. 16, No. 10, 1749-1755, 2024.
doi:10.1017/s1759078725000145        Google Scholar

4. Srivastava, Gunjan, Vimal Kumar, Amit Kumar, Akhilesh Mohan, Sachin Kumar, and Mousa I. Hussein, "Low-profile compact integrated 16-port MIMO antenna covering sub-6 GHz and millimeter-wave 5G bands," IEEE Access, Vol. 13, 191980-191989, 2025.
doi:10.1109/access.2025.3629113        Google Scholar

5. John, Deepthi Mariam, Shweta Vincent, Sameena Pathan, Kunjan D. Shinde, B. S. Supreetha, and Tanweer Ali, "Eight-element flexible MIMO antenna based on characteristics mode theory with enhanced channel capacity for sub 6 GHz 5G communications," Results in Engineering, Vol. 25, 104208, 2025.
doi:10.1016/j.rineng.2025.104208        Google Scholar

6. Jiang, Jun-Yi and Hsin-Lung Su, "A wideband eight-element MIMO antenna array in 5G NR N77/78/79 and WLAN-5 GHz bands for 5G smartphone applications," International Journal of Antennas and Propagation, Vol. 2022, No. 1, 8456936, 2022.
doi:10.1155/2022/8456936        Google Scholar

7. Elabd, Rania Hamdy, Ahmed J. A. Al-Gburi, and Amany A. Megahed, "Compact circular MIMO antenna with defected ground structure (DGS) for improved isolation in 5G sub-6 GHz mobile systems," Results in Engineering, Vol. 27, 105737, 2025.
doi:10.1016/j.rineng.2025.105737        Google Scholar

8. Kumar, Praveen, Sameena Pathan, Shweta Vincent, Om Prakash Kumar, Pradeep Kumar, Pranav R. Shetty, Tanweer Ali, et al. "A compact quad-port UWB MIMO antenna with improved isolation using a novel mesh-like decoupling structure and unique DGS," IEEE Transactions on Circuits and Systems II: Express Briefs, Vol. 70, No. 3, 949-953, 2023.
doi:10.1109/tcsii.2022.3220542        Google Scholar

9. Zhang, Juhui, Wei Luo, Qiangjuan Li, Yuexiao Pan, and Gui Liu, "Design and performance evaluation of a high-isolation MIMO antenna array for 5G N77/N78/N79 and WLAN implementations," Progress In Electromagnetics Research B, Vol. 110, 57-71, 2025.
doi:10.2528/pierb24100203        Google Scholar

10. Kumar, B. Praveen and Usha Kiran Kommuri, "High-gain eight-port dual-polarized magneto-electric dipole MIMO antenna array for 5G small-cell base station applications," IEEE Access, Vol. 14, 4013-4026, 2026.
doi:10.1109/access.2026.3650825        Google Scholar

11. Khan, Muhammad Irshad, Shaobin Liu, Jianliang Mao, Abdul Basit, Afzal Ahmed, and Amil Daraz, "Electromagnetic coupling suppression of eight-ports MIMO antenna for satellite communication with neutralize block and parasitic elements," AEU --- International Journal of Electronics and Communications, Vol. 170, 154821, 2023.
doi:10.1016/j.aeue.2023.154821        Google Scholar

12. Tran, Huy-Hung, Tung The-Lam Nguyen, Hoai-Nam Ta, and Duy-Phong Pham, "A metasurface-based MIMO antenna with compact, wideband, and high isolation characteristics for sub-6 GHz 5G applications," IEEE Access, Vol. 11, 67737-67744, 2023.
doi:10.1109/access.2023.3292303        Google Scholar

13. Srivastava, Gunjan, Amit Kumar, Sandeep Rana, Vimal Kumar, Akhilesh Mohan, Sachin Kumar, and Tanweer Ali, "Compact integrated self-multiplexing antenna for sub-6 GHz and millimeter wave 5G frequency spectrum," Scientific Reports, Vol. 16, 5457, 2026.
doi:10.1038/s41598-026-35031-5        Google Scholar

14. Li, Jinxing, Aloke Jana, Yueyi Yuan, Kuang Zhang, Shah Nawaz Burokur, and Patrice Genevet, "Exploiting hidden singularity on the surface of the Poincaré sphere," Nature Communications, Vol. 16, No. 1, 5953, 2025.
doi:10.1038/s41467-025-60956-2        Google Scholar

15. Yuan, Yueyi, Kuang Zhang, Qun Wu, Shah Nawaz Burokur, and Patrice Genevet, "Reaching the efficiency limit of arbitrary polarization transformation with non-orthogonal metasurfaces," Nature Communications, Vol. 15, No. 1, 6682, 2024.
doi:10.1038/s41467-024-50560-1        Google Scholar

16. Al-Tameemi, Ahmed Read, Goh Chin Hock, Tiong Sieh Kiong, Taha Raad Al-Shaikhli, Mohammed S. Al Ani, and Mohammad A. K. Al Ani, "Analysis of isolation techniques for mutual coupling reduction in MIMO antennas," Journal of Communications Software and Systems, Vol. 21, No. 3, 348-359, 2025.
doi:10.24138/jcomss-2025-0091        Google Scholar

17. Tamminaina, Govindarao and Ramesh Manikonda, "Design and analysis of wideband four-port multiple input multiple output antenna using defective ground structure for 5G communication," International Journal of Electrical and Computer Engineering (IJECE), Vol. 14, No. 2, 1646-1653, 2024.
doi:10.11591/ijece.v14i2.pp1646-1653        Google Scholar

18. Wang, Yiying, "Techniques for compact planar MIMO antennas," MIMO Communications --- Fundamental Theory, Propagation Channels, and Antenna Systems, 2023.
doi:10.5772/intechopen.112040        Google Scholar

19. Salehi, Mahdi and Homayoon Oraizi, "Wideband high gain metasurface-based 4T4R MIMO antenna with highly isolated ports for sub-6 GHz 5G applications," Scientific Reports, Vol. 14, No. 1, 14448, 2024.
doi:10.1038/s41598-024-65135-9        Google Scholar

20. Chen, Yu-Tung and Hsin-Lung Su, "A sub-6 GHz 8 × 8 MIMO antenna array for 5G metal-frame mobile phone applications," Electronics, Vol. 13, No. 23, 4590, 2024.
doi:10.3390/electronics13234590        Google Scholar

21. Srinubabu, Manumula and Nuthakki Venkata Rajasekhar, "A compact and highly isolated integrated 8-port MIMO antenna for sub-6 GHz and mm-Wave 5G-NR applications," Results in Engineering, Vol. 25, 104068, 2025.
doi:10.1016/j.rineng.2025.104068        Google Scholar

22. John, Deepthi Mariam, Tanweer Ali, Shweta Vincent, Sameena Pathan, Jaume Anguera, Bal Virdee, Rajiv Mohan David, Krishnamurthy Nayak, and Sudheesh Puthenveettil Gopi, "A dual-band flexible MIMO array antenna for sub-6 GHz 5G communications," Sensors, Vol. 25, No. 11, 3557, 2025.
doi:10.3390/s25113557        Google Scholar

23. Wong, Kin-Lu, Chia-Ying Wu, Ping-Cheng Tsao, Shu-Wei Hsu, and Wei-Yu Li, "Extremely low-profile four-antenna module covering U6 GHz band and its extreme receive antennas-aided MIMO application for 6G mobile devices," IEEE Access, Vol. 13, 156785-156798, 2025.
doi:10.1109/access.2025.3606909        Google Scholar

24. Srivastava, Gunjan, Akhilesh Mohan, Sachin Kumar, Hyun Chul Choi, and Kang Wook Kim, "Compact sixteen-port MIMO antenna for sub-6 GHz communications," IEEE Access, Vol. 13, 34051-34059, 2025.
doi:10.1109/access.2025.3541738        Google Scholar

25. Mishra, Brijesh, R. Sethumadhavi, Sweta Singh, Saiyed Salim Sayeed, Aditya Kumar Singh, Amrees Pandey, and Tanweer Ali, "An ultra-compact and high isolated 8 × 8 MIMO antenna system for 5G NR-n46 and n79 band applications," Scientific Reports, Vol. 16, No. 1, 12523, 2026.
doi:10.1038/s41598-026-43426-7        Google Scholar

26. Morsy, Mohamed M., "Compact eight-element MIMO antenna array for sub 6 GHz mobile applications," SN Applied Sciences, Vol. 5, No. 10, 261, 2023.
doi:10.1007/s42452-023-05465-x        Google Scholar

27. Li, Yingsong, Wenxing Li, and Wenhua Yu, "A multi-band/UWB MIMO/diversity antenna with an enhanced isolation using radial stub loaded resonator," Applied Computational Electromagnetics Society Journal (ACES), Vol. 28, No. 1, 8-20, 2013.        Google Scholar

28. Raj, Tej, Ranjan Mishra, Ankush Kapoor, Dheeraj Pandey, and Surajit Kundu, "A compact quad port MIMO antenna with gain augmentation using angularly stable and polarization insensitive FSS for 5G communication," AEU --- International Journal of Electronics and Communications, Vol. 190, 155636, 2025.
doi:10.1016/j.aeue.2024.155636        Google Scholar

29. Sufyan, Ali, Khan Bahadar Khan, Xingliang Zhang, Tauseef Ahmad Siddiqui, and Abdul Aziz, "Dual-band independently tunable 8-element MIMO antenna for 5G smartphones," Heliyon, Vol. 10, No. 4, e25712, 2024.
doi:10.1016/j.heliyon.2024.e25712        Google Scholar

30. John, Deepthi Mariam, Shweta Vincent, Sameena Pathan, Alexandros-Apostolos A. Boulogeorgos, Jaume Anguera, Tanweer Ali, and Rajiv Mohan David, "Eight element wideband antenna with improved isolation for 5G mid band applications," Technologies, Vol. 12, No. 10, 200, 2024.
doi:10.3390/technologies12100200        Google Scholar

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