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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/).
Experimental results achieved for a 2-bit prototype: (a) 2-bit prototype under test; (b) |S21| corresponding to all possible configurations; (c) phase of the S21 corresponding to all the possible configurations.