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For ultra wideband (UWB) applications, a low profile, Y-shaped microstrip patch antenna with a simple defect ground structure has been proposed. Half ellipse structure is used as a defective ground structure in order to improve the antenna’s bandwidth. The radius of the half ellipse is determined using parametric analysis in order to tune UWB frequency applications. The proposed Y-shaped microstrip patch antenna achieves 10.15 GHz (15.19–5.03 GHz) impedance bandwidth with respect to the − 10 dB reference line of the reflection coefficient and resonates at 5.71 GHz, 8.03 GHz, 11.15 GHz and 14.38 GHz frequencies with an S11 of − 27.08 dB, − 17.89 dB, − 17.97 dB and − 21.09 dB, respectively. A good agreement between the designed and the measured parametric results of the projected antenna structure.

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Design of Low-Profile Y-shaped Patch Antenna with DGS Technique for Ultra Wideband Applications

  • 会议论文

  • 发表日期：

    2025年

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  • P. Suresh Babu,
  • S. Nagakishore Bhavanam

摘要

For ultra wideband (UWB) applications, a low profile, Y-shaped microstrip patch antenna with a simple defect ground structure has been proposed. Half ellipse structure is used as a defective ground structure in order to improve the antenna’s bandwidth. The radius of the half ellipse is determined using parametric analysis in order to tune UWB frequency applications. The proposed Y-shaped microstrip patch antenna achieves 10.15 GHz (15.19–5.03 GHz) impedance bandwidth with respect to the − 10 dB reference line of the reflection coefficient and resonates at 5.71 GHz, 8.03 GHz, 11.15 GHz and 14.38 GHz frequencies with an S11 of − 27.08 dB, − 17.89 dB, − 17.97 dB and − 21.09 dB, respectively. A good agreement between the designed and the measured parametric results of the projected antenna structure.