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<p>A novel compact single-port dual-band antenna for mm-wave 5G applications is presented in this paper. The antenna, designed on a Rogers RT/Duroid 5880 substrate with dimensions of 8 × 19 × 0.8 mm<sup>3</sup>, employs slit-loading and a central slot to achieve dual ultra-wideband performance. The optimized configuration provides impedance bandwidths of 27.27–28.58&#xa0;GHz and 34.82–40.48&#xa0;GHz at S<sub>11</sub> &lt; -10&#xa0;dB, covering the 28&#xa0;GHz and 38&#xa0;GHz 5G bands. Simulated and measured results demonstrate substantial agreement, stable group delay within ± 1&#xa0;ns, and high radiation efficiency exceeding 80% across both bands. The antenna exhibits directional radiation with stable E- and H-plane characteristics while achieving excellent peak gain for high-data-rate communication. Owing to its compact size, stable dual-band performance, and ease of integration, the proposed antenna is a strong candidate for next-generation 5G and beyond mm-wave communication systems.</p>

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A Novel Single-Element High-Directive-Gain Dual-Band Antenna for 5G mm-Wave 28/38 GHz Applications

  • 期刊论文

  • 发表日期：

    2026年3月6日

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  • Tathababu Addepalli,
  • T. Vidyavathi,
  • MVenkata Sudhakar,
  • K. S. Chakradhar,
  • Manumula Srinubabu,
  • Sivasubramanyam Medasani,
  • Prasanthi badugu,
  • A. J. A. Al-Gburi

摘要

A novel compact single-port dual-band antenna for mm-wave 5G applications is presented in this paper. The antenna, designed on a Rogers RT/Duroid 5880 substrate with dimensions of 8 × 19 × 0.8 mm3, employs slit-loading and a central slot to achieve dual ultra-wideband performance. The optimized configuration provides impedance bandwidths of 27.27–28.58 GHz and 34.82–40.48 GHz at S11 < -10 dB, covering the 28 GHz and 38 GHz 5G bands. Simulated and measured results demonstrate substantial agreement, stable group delay within ± 1 ns, and high radiation efficiency exceeding 80% across both bands. The antenna exhibits directional radiation with stable E- and H-plane characteristics while achieving excellent peak gain for high-data-rate communication. Owing to its compact size, stable dual-band performance, and ease of integration, the proposed antenna is a strong candidate for next-generation 5G and beyond mm-wave communication systems.