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. 2022 Dec 6;22(23):9549. doi: 10.3390/s22239549

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© 2022 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 (https://creativecommons.org/licenses/by/4.0/).

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(a) Fabricated UWB antenna. (b) S11 of the antenna. (c) The antenna loaded on the different positions of the voxel model. (d) S11 of the loaded antenna. (e) Radiation pattern. Reprinted (a–e) from Ref. [62].

(a) Fabricated UWB antenna. (b) S11 of the antenna. (c) The antenna loaded on the different positions of the voxel model. (d) S11 of the loaded antenna. (e) Radiation pattern. Reprinted (a–e) from Ref. [62].