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This study discusses the design of a miniature microstrip patch antenna optimized for 28 and 38 GHz frequencies, aimed at on-body 5G mobile communication applications. The main aim of this work is to develop a cost-efficient, high-performance antenna appropriate for tiny, miniaturized devices, utilizing an economical substrate and a compact patch. The antenna design features a multi-slot patch with a FR-4 substrate, utilizing copper as the conductor for both the patch and the ground plane. The antenna, measuring 5.7 × 6.0 × 1.6 mm3, operates in dual-band mode via rectangular slots and is powered by a 50 Ω microstrip line. It operates at frequencies of 28 and 38 GHz, with corresponding bandwidths of 1.93 and 2.57 GHz. The antenna has VSWR values of 1.52 and 1.31 for the 28 GHz and 38 GHz bands, respectively. The gain, directivity, and radiation properties validate the antenna’s appropriateness for on-body communication. The concept was modeled using CST Studio Suite, demonstrating its viability for forthcoming 5G applications.

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Dual-Band Microstrip Antenna Operating at 28/38 GHz for WBAN Applications

  • 会议论文

  • 发表日期：

    2025年

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  • Sadman Ishraq,
  • Md. Al Imran,
  • Khorshed Alam,
  • Mohammad Monirujjaman Khan

摘要

This study discusses the design of a miniature microstrip patch antenna optimized for 28 and 38 GHz frequencies, aimed at on-body 5G mobile communication applications. The main aim of this work is to develop a cost-efficient, high-performance antenna appropriate for tiny, miniaturized devices, utilizing an economical substrate and a compact patch. The antenna design features a multi-slot patch with a FR-4 substrate, utilizing copper as the conductor for both the patch and the ground plane. The antenna, measuring 5.7 × 6.0 × 1.6 mm3, operates in dual-band mode via rectangular slots and is powered by a 50 Ω microstrip line. It operates at frequencies of 28 and 38 GHz, with corresponding bandwidths of 1.93 and 2.57 GHz. The antenna has VSWR values of 1.52 and 1.31 for the 28 GHz and 38 GHz bands, respectively. The gain, directivity, and radiation properties validate the antenna’s appropriateness for on-body communication. The concept was modeled using CST Studio Suite, demonstrating its viability for forthcoming 5G applications.