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. 2018 Nov 2;18(11):3746. doi: 10.3390/s18113746

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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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(a) Equivalent circuit of the reader, including the electromagnetic interference (EMI) filter and matching network. (b) Single-ended equivalent circuit.