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This paper presents the design and PSO-based optimization of a multiband substrate-integrated waveguide (SIW) antenna incorporating three geometrically complex resonators. The optimized structure exhibits five narrowband resonances at 8.4, 10.14, 10.9, 11.8, and 13.3 GHz, in the X-band and the lower part of the Ku-band. Each band maintains a narrow bandwidth of approximately 200 MHz, enabling reduced interference, enhanced spectral selectivity, and improved system efficiency. The antenna reaches a peak gain of 6,4 dBi. Full-wave electromagnetic simulations validate their suitability for compact and selective wireless, satellite, and radar applications.

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Design and Optimization of a Multiband SIW Antenna Based on Complex-Geometry Resonators Using the PSO Optimization Algorithm for X and Ku Band Applications

  • 会议论文

  • 发表日期：

    2026年

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  • Dahbi El Khamlichi,
  • Moustapha El Bakkali,
  • Soufiane Achraou,
  • Souhaila Ben Haddi,
  • Zainab El Fartakh,
  • Naima Amar Touhami,
  • Alia Zakriti

摘要

This paper presents the design and PSO-based optimization of a multiband substrate-integrated waveguide (SIW) antenna incorporating three geometrically complex resonators. The optimized structure exhibits five narrowband resonances at 8.4, 10.14, 10.9, 11.8, and 13.3 GHz, in the X-band and the lower part of the Ku-band. Each band maintains a narrow bandwidth of approximately 200 MHz, enabling reduced interference, enhanced spectral selectivity, and improved system efficiency. The antenna reaches a peak gain of 6,4 dBi. Full-wave electromagnetic simulations validate their suitability for compact and selective wireless, satellite, and radar applications.