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<p>This paper presents a compact, reconfigurable sub-6&#xa0;GHz MIMO antenna array integrated with a solar panel, targeting energy-efficient and sustainable 5G communication networks. The proposed design addresses the critical challenges of antenna performance degradation and mutual coupling that typically arise when antennas are integrated with photovoltaic structures. To overcome these limitations, the antenna employs a metamaterial (MTM) radiating patch composed of a 5 × 3 Hilbert-curve split-ring resonator (SRR) array, which enhances impedance bandwidth and gain through plasmonic resonance behavior. Additionally, a defected electromagnetic band-gap (EMBG) ground plane is introduced to suppress surface waves and back radiation, thereby improving radiation efficiency and isolation. A novel composite right/left-handed (CRLH) isolation wall is incorporated between antenna elements to achieve strong mutual coupling reduction within an ultra-compact footprint. Frequency reconfigurability is realized using PIN diodes, enabling dynamic control of the operating bands and radiation characteristics. The proposed two-element MIMO configuration is mounted beneath a solar panel, demonstrating negligible impact on photovoltaic I–V characteristics, while simultaneously providing a gain enhancement due to constructive electromagnetic interaction. The antenna operates over a wide frequency range between 2.7 and 6.0&#xa0;GHz and beyond, with resonances around 3 and 5&#xa0;GHz, achieving a maximum gain of approximately 7.3 dBi.</p>

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A reconfigurable MTM-EMBG MIMO antenna array with solar panel integration for sustainable 5G networks

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年5月11日

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  • Saif Al-Attar,
  • Mohammad Alibakhshikenari,
  • Yazeed Mohammad Qasaymeh,
  • Mohammed Abdulrahman Dawood Al-Obaidi,
  • Bal S. Virdee,
  • H. Benetatos,
  • Nur Syazreen Ahmad,
  • Astrit Krasniqi,
  • Taha A. Elwi,
  • Muhammad Akmal Chaudhary,
  • Nisar Ahmad Abbasi,
  • Patrizia Livreri,
  • Takfarinas Saber

摘要

This paper presents a compact, reconfigurable sub-6 GHz MIMO antenna array integrated with a solar panel, targeting energy-efficient and sustainable 5G communication networks. The proposed design addresses the critical challenges of antenna performance degradation and mutual coupling that typically arise when antennas are integrated with photovoltaic structures. To overcome these limitations, the antenna employs a metamaterial (MTM) radiating patch composed of a 5 × 3 Hilbert-curve split-ring resonator (SRR) array, which enhances impedance bandwidth and gain through plasmonic resonance behavior. Additionally, a defected electromagnetic band-gap (EMBG) ground plane is introduced to suppress surface waves and back radiation, thereby improving radiation efficiency and isolation. A novel composite right/left-handed (CRLH) isolation wall is incorporated between antenna elements to achieve strong mutual coupling reduction within an ultra-compact footprint. Frequency reconfigurability is realized using PIN diodes, enabling dynamic control of the operating bands and radiation characteristics. The proposed two-element MIMO configuration is mounted beneath a solar panel, demonstrating negligible impact on photovoltaic I–V characteristics, while simultaneously providing a gain enhancement due to constructive electromagnetic interaction. The antenna operates over a wide frequency range between 2.7 and 6.0 GHz and beyond, with resonances around 3 and 5 GHz, achieving a maximum gain of approximately 7.3 dBi.