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Materials 2018, 11(6), 955;

E-Textile Embroidered Metamaterial Transmission Line for Signal Propagation Control

Department of Electronic Engineering, Universitat Politècnica de Catalunya, Terrassa 08222, Barcelona, Spain
Authors to whom correspondence should be addressed.
Received: 4 May 2018 / Revised: 28 May 2018 / Accepted: 31 May 2018 / Published: 5 June 2018
(This article belongs to the Special Issue Novel Smart Textiles)
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In this paper, the utilization of common fabrics for the manufacturing of e-textile metamaterial transmission lines is investigated. In order to filter and control the signal propagation in the ultra-high frequency (UHF) range along the e-textile, a conventional metamaterial transmission line was compared with embroidered metamaterial particles. The proposed design was based on a transmission line loaded with one or several split-ring resonators (SRR) on a felt substrate. To explore the relations between physical parameters and filter performance characteristics, theoretical models based on transmission matrices’ description of the filter constituent components were proposed. Excellent agreement between theoretical prediction, electromagnetic simulations, and measurement were found. Experimental results showed stop-band levels higher than −30 dB for compact embroidered metamaterial e-textiles. The validated results confirmed embroidery as a useful technique to obtain customized electromagnetic properties, such as filtering, on wearable applications. View Full-Text
Keywords: e-textile; metamaterials; transmission line; wearable; split ring resonator e-textile; metamaterials; transmission line; wearable; split ring resonator

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Moradi, B.; Fernández-García, R.; Gil, I. E-Textile Embroidered Metamaterial Transmission Line for Signal Propagation Control. Materials 2018, 11, 955.

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