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

Author:

Yang Ya-Lung1ORCID,Lin Ding-Bing1ORCID

Affiliation:

1. Department of Electronic and Computer Engineering, National Taiwan University of Science and Technology, Taipei 106335, Taiwan

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 (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° 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.

Funder

Ministry of Science and Technology of Taiwan

Publisher

MDPI AG

Subject

Fluid Flow and Transfer Processes,Computer Science Applications,Process Chemistry and Technology,General Engineering,Instrumentation,General Materials Science

Cited by 3 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. A Survey of Limitations and Future Directions of Antenna Design for UAV Applications;2024 14th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP);2024-07-17

2. UAS-Based Antenna Radiation Pattern Measurement: A Practical Approach;2023 International Conference on Advanced Scientific Computing (ICASC);2023-10-18

3. Editorial on “Design, Analysis, and Measurement of Antennas”;Applied Sciences;2023-09-06

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