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. 2018 Oct 21;18(10):3571. doi: 10.3390/s18103571

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© 2018 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Radiation pattern of the WiTi on-board the UAV for the antennas configuration shown in Figure 13 in the U2G link working in 2.4 GHz: (a) X Plane, (b) Y Plane, and (c) Z Plane.