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Dual-band aperture-shared antenna with pattern and polarization diversities for ISM applications

Author

Listed:
  • Wenfei Yin
  • Jiacheng Si
  • Chunhua Li
  • Salam K. Khamas

Abstract

This paper presents a dual-band aperture-shared planar antenna for ISM applications, operating at 2.45 and 5.8 GHz. It integrates a rectangular dielectric resonator antenna (RDRA) with a cross-slot feed and circular patch for circular polarization and high gain in the upper band, achieving a broadside gain of 10.05 dBi and 4.15% axial ratio bandwidth. A modified Alford loop antenna in the lower band provides a gain of 2.3 dBi and 14.1% impedance bandwidth. Simulations and measurements confirm performance with over 20 dB port isolation. Compared to existing designs, it offers superior pattern/polarization diversity, bandwidth, and gain in a compact form factor, suitable for modern wireless systems.

Suggested Citation

  • Wenfei Yin & Jiacheng Si & Chunhua Li & Salam K. Khamas, 2025. "Dual-band aperture-shared antenna with pattern and polarization diversities for ISM applications," Journal of Electromagnetic Waves and Applications, Taylor & Francis Journals, vol. 39(15), pages 1858-1871, October.
    • Handle: RePEc:taf:tewaxx:v:39:y:2025:i:15:p:1858-1871
    DOI: 10.1080/09205071.2025.2530627
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