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)
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.
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 unmanned aerial vehicle (UAV) applications in both urban and open areas. It is suitable for being mounted on the outermost side of the non-metallic wing of the small UAV. 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 (S11≤-10 dB). 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 degrees 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.
Engineering, Electrical and Electronic Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Received:
26 May 2023
Commenter:
Ya-Lung Yang
Commenter's Conflict of Interests:
Author
Comment: 1. Change the parameter Beta in Table 1 to the Greek letter "B" to fully match the mark in Figure 1. 2. Adjust the size of some figures to make the layout of the article more neat.
Commenter: Ya-Lung Yang
Commenter's Conflict of Interests: Author
2. Adjust the size of some figures to make the layout of the article more neat.