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Peer-reviewedCC BYScientific Reports

Dual-band four-element MIMO antenna array for 5G millimeter-wave communication

  • Pankaj Kumar Gautam1
  • Amit Kumar2
  • Gunjan Srivastava3
  • Dharmendra Kumar Jhariya1
  • Akhilesh Mohan2
  • Sachin Kumar4
  • Mousa I. Hussein5
5 affiliations
  1. 1Department of Electronics and Communication Engineering, National Institute of Technology Delhi
  2. 2Department of Electronics and Communication Engineering, Indian Institute of Technology Roorkee
  3. 3Department of Electronics and Communication Engineering, Graphic Era (Deemed to be) University
  4. 4Department of Electronics and Communication Engineering, Galgotias College of Engineering and Technology
  5. 5Department of Electrical and Communication Engineering, United Arab Emirates University
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Abstract

This paper presents a four-element dual-band multiple-input-multiple-output (MIMO) antenna array designed to operate in 5G millimeter-wave (mm-wave) spectrum. The designed antenna system is configured using four 1 × 4 antenna subarrays. An antiparallel arrangement is used for the unit element subarrays (UESAs) to enhance isolation and improve radiation performance. The UESA consists of four identical symmetrically arranged modified rectangular patches and T-junction power dividers. This feeding configuration ensures equal power division, maintains phase coherence, and provides stable excitation to the radiating elements. The proposed MIMO antenna array occupies an overall volume of 40 mm × 96 mm × 0.254 mm and operates over the frequency ranges of 28.3–29.1 GHz (FBW ≈ 2.8%) and 38.31–39.13 GHz (FBW ≈ 2.1%). High inter-port isolation is achieved, exceeding 25 dB and 30 dB across the lower and upper operating bands, respectively. The designed MIMO antenna array achieves peak realized gains of 9.1 dBi and 12.4 dBi at 28.7 GHz and 38.72 GHz, respectively. The excellent radiation characteristics, combined with enhanced MIMO performance, establish the proposed antenna system as a promising candidate for mm-wave 5G applications.

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Cite

BibTeXRIS
BibTeX
@article{gautam2026dualband,
  title = {{Dual-band four-element MIMO antenna array for 5G millimeter-wave communication}},
  author = {Pankaj Kumar Gautam and Amit Kumar and Gunjan Srivastava and Dharmendra Kumar Jhariya and Akhilesh Mohan and Sachin Kumar and Mousa I. Hussein},
  journal = {Scientific Reports},
  year = {2026},
  month = aug,
  doi = {10.1038/s41598-026-68526-2},
  url = {https://doi.org/10.1038/s41598-026-68526-2},
  note = {CC BY},
}
RIS
TY  - JOUR
TI  - Dual-band four-element MIMO antenna array for 5G millimeter-wave communication
AU  - Pankaj Kumar Gautam
AU  - Amit Kumar
AU  - Gunjan Srivastava
AU  - Dharmendra Kumar Jhariya
AU  - Akhilesh Mohan
AU  - Sachin Kumar
AU  - Mousa I. Hussein
PY  - 2026
DA  - 2026/08/01
JO  - Scientific Reports
DO  - 10.1038/s41598-026-68526-2
UR  - https://doi.org/10.1038/s41598-026-68526-2
AB  - This paper presents a four-element dual-band multiple-input-multiple-output (MIMO) antenna array designed to operate in 5G millimeter-wave (mm-wave) spectrum. The designed antenna system is configured using four 1 × 4 antenna subarrays. An antiparallel arrangement is used for the unit element subarrays (UESAs) to enhance isolation and improve radiation performance. The UESA consists of four identical symmetrically arranged modified rectangular patches and T-junction power dividers. This feeding configuration ensures equal power division, maintains phase coherence, and provides stable excitation to the radiating elements. The proposed MIMO antenna array occupies an overall volume of 40 mm × 96 mm × 0.254 mm and operates over the frequency ranges of 28.3–29.1 GHz (FBW ≈ 2.8%) and 38.31–39.13 GHz (FBW ≈ 2.1%). High inter-port isolation is achieved, exceeding 25 dB and 30 dB across the lower and upper operating bands, respectively. The designed MIMO antenna array achieves peak realized gains of 9.1 dBi and 12.4 dBi at 28.7 GHz and 38.72 GHz, respectively. The excellent radiation characteristics, combined with enhanced MIMO performance, establish the proposed antenna system as a promising candidate for mm-wave 5G applications.
SN  - 2045-2322
ER  -