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<p>The rapid evolution of wireless communication technologies necessitates the development of more efficient antennas capable of supporting the broad frequency and complex operational demands of modern systems. Conventional antenna designs often encounter limitations such as narrow bandwidth and inefficiencies in polarization and impedance matching, which degrade performance. This study introduces a dual-port antenna utilizing advanced Hilbert curve fractal geometry to enhance multi-band functionality and improve polarization characteristics, aiming to overcome these limitations. The results revealed robust polarization with RHCP and LHCP values up to 10.80&#xa0;dB, excellent impedance matching with VSWR less than 2, and high radiation efficiency rates of 81.91% for Port 1 and 78.95% for Port 2. Furthermore, both ports 1 and 2 achieved 5&#xa0;dB gain with a minimum bandwidth of 750&#xa0;MHz at the resonance frequency. The superior multi-band performance and efficient power conversion of the dual-port antenna not only demonstrate its potential for advanced telecommunications applications but also signify substantial advancements over traditional antenna designs.</p>

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Performance analysis of multiport hilbert curve fractal antenna in mid-band applications

  • 期刊论文

  • 发表日期：

    2026年1月20日

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  • R. Indhumathi,
  • M. Kavitha

摘要

The rapid evolution of wireless communication technologies necessitates the development of more efficient antennas capable of supporting the broad frequency and complex operational demands of modern systems. Conventional antenna designs often encounter limitations such as narrow bandwidth and inefficiencies in polarization and impedance matching, which degrade performance. This study introduces a dual-port antenna utilizing advanced Hilbert curve fractal geometry to enhance multi-band functionality and improve polarization characteristics, aiming to overcome these limitations. The results revealed robust polarization with RHCP and LHCP values up to 10.80 dB, excellent impedance matching with VSWR less than 2, and high radiation efficiency rates of 81.91% for Port 1 and 78.95% for Port 2. Furthermore, both ports 1 and 2 achieved 5 dB gain with a minimum bandwidth of 750 MHz at the resonance frequency. The superior multi-band performance and efficient power conversion of the dual-port antenna not only demonstrate its potential for advanced telecommunications applications but also signify substantial advancements over traditional antenna designs.