This letter proposes a novel broad beamwidth low-profile conformal antenna on an unmanned aerial vehicle (UAV). The antenna adopts the structure of an L-shaped monopole loaded by a shorted pin and realizes characteristics of low profile and vertical polarization. The antenna realizes quasi-omnidirection radiation in the horizontal plane. The 3-dB beamwidth in the vertical plane is 197°. The antenna can be widely used in the field of communication antenna on unmanned aerial vehicle for its advantages of simple structure, wide beamwidth, and low profile.
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Zong-quan et al. (2012) studied this question.
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