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<p>A square ring-shaped patch antenna with a partial ground plane has been designed, measuring 35.3&#xa0;×&#xa0;35.4&#xa0;×&#xa0;1.6&#xa0;mm<sup>3</sup> (equivalent to 0.3λ&#xa0;×&#xa0;0.3λ&#xa0;×&#xa0;0.013λ). The antenna is fabricated using FR4 substrate with a dielectric constant (ε<sub>r</sub>) of 4.4. It supports dual-band operation: the first band ranges from 2.4 to 2.9&#xa0;GHz with a centre frequency of 2.6&#xa0;GHz, while the second band spans from 6.0 to 6.9&#xa0;GHz, centred at 6.4&#xa0;GHz. The antenna exhibits fractional bandwidths of 19.2% and 14% for the respective bands. Peak gains of 3&#xa0;dBi at 2.6&#xa0;GHz and 4.5&#xa0;dBi at 6.2&#xa0;GHz were observed, along with an average radiation efficiency of 92%. Both frequency bands are suitable for 5G communication. The antenna was designed using HFSS 19 software and subsequently fabricated and tested, with measured results showing a close correlation to simulated data.</p>

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Dual Band Monopole Antenna for 5G Communication

  • 期刊论文

  • 发表日期：

    2025年10月22日

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  • Amit Abhishek,
  • Manoranjan Kumar

摘要

A square ring-shaped patch antenna with a partial ground plane has been designed, measuring 35.3 × 35.4 × 1.6 mm3 (equivalent to 0.3λ × 0.3λ × 0.013λ). The antenna is fabricated using FR4 substrate with a dielectric constant (εr) of 4.4. It supports dual-band operation: the first band ranges from 2.4 to 2.9 GHz with a centre frequency of 2.6 GHz, while the second band spans from 6.0 to 6.9 GHz, centred at 6.4 GHz. The antenna exhibits fractional bandwidths of 19.2% and 14% for the respective bands. Peak gains of 3 dBi at 2.6 GHz and 4.5 dBi at 6.2 GHz were observed, along with an average radiation efficiency of 92%. Both frequency bands are suitable for 5G communication. The antenna was designed using HFSS 19 software and subsequently fabricated and tested, with measured results showing a close correlation to simulated data.