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. 2020 Oct 31;20(21):6228. doi: 10.3390/s20216228

Figure 1.

Figure 1

The modelled 3-D simulated and experimental configuration used to observe the transmitted signal differences caused by different dielectric targets: Drawings of (a) Target T1 (r = 15mm), (b) Target T2 (r = 10mm), and (c) the 3-D model used in simulations; (d) Photo of the experimental setup shown in these drawings.