A Novel Four-Port UWB MIMO Metasurface Antenna for mmWave Applications

Authors

  • Ruwaybih Alsulami Department of Electrical Engineering, Umm Al-Qura University, Makkah, Saudi Arabia
  • Sulaiman Alharbi Department of Electrical Engineering, Umm Al-Qura University, Makkah, Saudi Arabia
  • Abdulelah Alotaibi Department of Electrical Engineering, Umm Al-Qura University, Makkah, Saudi Arabia
  • Saad Alqurashi Department of Electrical Engineering, Umm Al-Qura University, Makkah, Saudi Arabia
  • Aseel Alrddadi Department of Electrical Engineering, Umm Al-Qura University, Makkah, Saudi Arabia
  • Abdurahman Alharbi Department of Electrical Engineering, Umm Al-Qura University, Makkah, Saudi Arabia
  • Saeed Alzahrani Department of Electrical Engineering, University of Tabuk, Tabuk, Saudi Arabia
Volume: 15 | Issue: 6 | Pages: 30412-30419 | December 2025 | https://doi.org/10.48084/etasr.14036

Received: 12 August 2025 | Revised: 18 September 2025 and 7 October 2025 | Accepted: 12 October 2025 | Online: 5 November 2025


Corresponding author: Ruwaybih Alsulami

Abstract

This paper introduces a new Ultra-Wideband (UWB) metasurface-based Millimeter-Wave (mmWave) Multiple-Input Multiple-Output (MIMO) antenna designed for mmWave applications. The proposed MIMO antenna, incorporating a metasurface, achieves a wide fractional bandwidth of 66.1%, covering frequencies from 23.33 GHz to 46.4 GHz. It delivers a peak gain of 11 dB with a variation of 3.5 dB across the band and maintains high radiation efficiency between 91.7% and 95.2%. With a minimal footprint of 32 × 32 mm², the design integrates four antenna arrays. First, a single antenna array is optimized for UWB performance and enhanced gain using a metasurface. Next, a MIMO configuration is developed, preserving the performance of the single antenna while incorporating a metasurface for further gain improvement. The antenna supports multiple mmWave bands, including the 24 GHz Industrial, Scientific, and Medical (ISM) band, the K-band, the Ka-band (27–40 GHz), and key mmWave frequencies such as 26 GHz, 28 GHz, and 38 GHz. This design demonstrates strong potential for high-performance mmWave communication systems.

Keywords:

Multiple-Input Multiple-Output (MIMO) antenna, Ultra-Wideband (UWB), metasurface antenna, Millimeter-Wave (mmWave), UWB MIMO

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How to Cite

[1]
R. Alsulami, “A Novel Four-Port UWB MIMO Metasurface Antenna for mmWave Applications”, Eng. Technol. Appl. Sci. Res., vol. 15, no. 6, pp. 30412–30419, Dec. 2025.

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Copyright (c) 2025 Ruwaybih Alsulami, Sulaiman Alharbi, Abdulelah Alotaibi, Saad Alqurashi, Aseel Alrddadi, Abdurahman Alharbi, Saeed Alzahrani

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