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This article proposes a monopole antenna that has a frequency range of n78 (ie., 3.25–3.67 GHz). The n78 is the frequency range of Sub-6 GHz that are the lower frequency range of 5G. The antenna design is inspired by keyhole which is made on a circular patch with a partial slot grounded structure. The dimensions of the antenna are 25 × 25x0.8 mm3. FR4 Epoxy is the substrate material with dielectric constant ɛr = 4.4. The antenna covers the range of Sub-6 5G and 5G mobile communications. It has a gain of 4.7 dB and high radiation efficiency of 96%. The simulation has been carried out on the Ansys HFSS Software.

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Compact Modified Circular Patch Antenna with Truncated Ground for 5G Sub-6 GHz

  • 会议论文

  • 发表日期：

    2026年

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  • Deeksha Yadav,
  • Shivani Anand,
  • Gagandeep Bharti

摘要

This article proposes a monopole antenna that has a frequency range of n78 (ie., 3.25–3.67 GHz). The n78 is the frequency range of Sub-6 GHz that are the lower frequency range of 5G. The antenna design is inspired by keyhole which is made on a circular patch with a partial slot grounded structure. The dimensions of the antenna are 25 × 25x0.8 mm3. FR4 Epoxy is the substrate material with dielectric constant ɛr = 4.4. The antenna covers the range of Sub-6 5G and 5G mobile communications. It has a gain of 4.7 dB and high radiation efficiency of 96%. The simulation has been carried out on the Ansys HFSS Software.