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<p>In this paper, two novel ultra-high gain circularly polarized (CP) antenna structures have been proposed for drone jamming applications. One of the structures is fed with rectangular waveguide and vertical microstrip feed based on the Fabry-Perot Cavity Resonator principle, using an elliptical-shaped air cavity at the bottom of the Cylindrical Dielectric Resonator Antennas (CDRA), providing gain of 29 dBi and 99% efficiency, which is the highest in passive CDRA to the author’s knowledge. The other structure of the CDRA is built using four metasurface cells placed at a <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(\lambda \)</EquationSource> </InlineEquation>/4 distance along the periphery. Due to this novel structure, a gain of 7.513 dBi is achieved at a frequency of 2.4 GHz. CP is achieved due to Z-shape on the ground plane in this structure. Both antennas are validated using CST simulation software and Al<InlineEquation ID="IEq2"> <EquationSource Format="TEX">\(_{2}\)</EquationSource> </InlineEquation>O<InlineEquation ID="IEq3"> <EquationSource Format="TEX">\(_{3}\)</EquationSource> </InlineEquation> ceramic prototype CDRAs. The measured and simulated results are found to perfectly match each other.</p>

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Ultra-high gain ceramic passive antenna for drone jamming and communication

  • 期刊论文

  • 发表日期：

    2025年12月2日

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  • Sushmita Bhushan,
  • Rajveer Singh Yaduvanshi

摘要

In this paper, two novel ultra-high gain circularly polarized (CP) antenna structures have been proposed for drone jamming applications. One of the structures is fed with rectangular waveguide and vertical microstrip feed based on the Fabry-Perot Cavity Resonator principle, using an elliptical-shaped air cavity at the bottom of the Cylindrical Dielectric Resonator Antennas (CDRA), providing gain of 29 dBi and 99% efficiency, which is the highest in passive CDRA to the author’s knowledge. The other structure of the CDRA is built using four metasurface cells placed at a \(\lambda \) /4 distance along the periphery. Due to this novel structure, a gain of 7.513 dBi is achieved at a frequency of 2.4 GHz. CP is achieved due to Z-shape on the ground plane in this structure. Both antennas are validated using CST simulation software and Al \(_{2}\) O \(_{3}\) ceramic prototype CDRAs. The measured and simulated results are found to perfectly match each other.