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<p>This paper presents a compact dual-band antenna designed using a coplanar waveguide (CPW) feed, specifically tailored for small civil unmanned aerial vehicle (UAV) systems. The antenna can be mounted on the leg structure beneath the non-metallic wing of a small UAV, with overall dimensions of 22.6&#xa0;mm ×20.1&#xa0;mm ×0.8&#xa0;mm(0.176<i>λ</i><sub><i>L</i></sub> × 0.161<i>λ</i><sub><i>L</i></sub> × 0.006<i>λ</i><sub><i>L</i></sub>), where <i>λ</i><sub><i>L</i></sub> is the wavelength corresponding to the lowest operating frequency. It operates in the frequency ranges of 2.34–2.76&#xa0;GHz and 5.48–6.99&#xa0;GHz (with |S11| ≤ -10 dB), fully covering the Wi-Fi 2.4&#xa0;GHz and 5.8&#xa0;GHz bands. This meets the demands for remote control, telemetry, and data transmission in UAV applications. Test results indicate that the antenna demonstrates a stable omnidirectional radiation pattern, good radiation efficiency, and excellent impedance-matching characteristics within the operating frequency range. By integrating grid-patterned radiating patches and applying substrate shear technology, the design achieves a lightweight and low-profile structure, effectively supporting UAV miniaturization and aerodynamic performance.</p>

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Design of a Lightweight Dual-Band Antenna for UAV Applications

  • 期刊论文

  • 发表日期：

    2026年1月29日

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  • Lingsheng Yang,
  • Yu Lu,
  • Jiaru Zhang,
  • Jun Dong

摘要

This paper presents a compact dual-band antenna designed using a coplanar waveguide (CPW) feed, specifically tailored for small civil unmanned aerial vehicle (UAV) systems. The antenna can be mounted on the leg structure beneath the non-metallic wing of a small UAV, with overall dimensions of 22.6 mm ×20.1 mm ×0.8 mm(0.176λL × 0.161λL × 0.006λL), where λL is the wavelength corresponding to the lowest operating frequency. It operates in the frequency ranges of 2.34–2.76 GHz and 5.48–6.99 GHz (with |S11| ≤ -10 dB), fully covering the Wi-Fi 2.4 GHz and 5.8 GHz bands. This meets the demands for remote control, telemetry, and data transmission in UAV applications. Test results indicate that the antenna demonstrates a stable omnidirectional radiation pattern, good radiation efficiency, and excellent impedance-matching characteristics within the operating frequency range. By integrating grid-patterned radiating patches and applying substrate shear technology, the design achieves a lightweight and low-profile structure, effectively supporting UAV miniaturization and aerodynamic performance.