Preprint Article Version 3 Preserved in Portico This version is not peer-reviewed

A Compact Planar Wi-Fi Antenna with Optimized Radiation Patterns for Small UAV Applications

Version 1 : Received: 23 May 2023 / Approved: 25 May 2023 / Online: 25 May 2023 (03:28:12 CEST)
Version 2 : Received: 25 May 2023 / Approved: 26 May 2023 / Online: 26 May 2023 (07:39:26 CEST)
Version 3 : Received: 20 June 2023 / Approved: 21 June 2023 / Online: 21 June 2023 (03:58:21 CEST)

A peer-reviewed article of this Preprint also exists.

Yang, Y.-L.; Lin, D.-B. A Compact Planar Wi-Fi Antenna with Optimized Radiation Patterns for Small UAV Applications. Appl. Sci. 2023, 13, 7470. Yang, Y.-L.; Lin, D.-B. A Compact Planar Wi-Fi Antenna with Optimized Radiation Patterns for Small UAV Applications. Appl. Sci. 2023, 13, 7470.

Abstract

This paper proposes a compact planar Wi-Fi antenna with optimized radiation patterns for small uncrewed aerial vehicle (UAV) applications in both urban and open areas. It is suitable for mounting on the outermost side of the non-metallic wing of small UAVs. It has small dimensions of 16.5 mm (L) by 30.3 mm (W) by 1.6 mm (h), and the measured results of its prototype are in agreement with simulated data. Its impedance bandwidths over the two frequency ranges are 2.11 to 2.58 GHz and 5.06 to 7.5 GHz ( ). At 5.8 GHz, it has stronger radiation below the small UAV to reduce interference from rare-use directions. Its maximum radiations, the directions of the maximum radiation in each elevation plane, are below the UAV and between 14° and 29° from the horizontal plane. At 2.4 GHz, it has quasi-omnidirectional radiation to ensure a stable link in all directions, and its maximum radiations are near the horizontal plane. The optimized radiation patterns at 5.8 and 2.4 GHz can provide more antenna gain when the small UAV flies farther in urban and open areas, respectively. In addition, it has good vertically polarized radiation for long-distance applications.

Keywords

planar Wi-Fi antenna; optimized radiation patterns; small UAV; unmanned uncrewed aerial vehicle; vertically polarized radiation

Subject

Engineering, Electrical and Electronic Engineering

Comments (1)

Comment 1
Received: 21 June 2023
Commenter: Ya-Lung Yang
Commenter's Conflict of Interests: Author
Comment: 1. Update the image quality of the figures.
2. Improve the English editing.
+ Respond to this comment

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