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Sensors 2016, 16(6), 938; doi:10.3390/s16060938

Smart Coat with a Fully-Embedded Textile Antenna for IoT Applications

1
FibEnTech Research Unit, Universidade da Beira Interior, Rua Marquês D’Ávila e Bolama, Covilhã 6201-001, Portugal
2
Instituto de Telecomunicações, Campus Universitário de Santiago, Aveiro 3810-135, Portugal
3
Capes Foundation, Ministry of Education of Brazil, Brasília 70040-020, Brazil
4
Departamento de Eletrónica, Telecomunicações e Informática, Universidade de Aveiro, Campus Universitário de Santiago, Aveiro 3810-135, Portugal
5
Instituto Superior de Engenharia de Lisboa, Rua Conselheiro Emílio Navarro, Lisboa 1959-009, Portugal
*
Author to whom correspondence should be addressed.
Academic Editors: Stefano Mariani, Dirk Lehmhus, Francesco Ciucci, Alberto Vallan and Thomas B. Messervey
Received: 22 April 2016 / Revised: 2 June 2016 / Accepted: 17 June 2016 / Published: 22 June 2016
View Full-Text   |   Download PDF [12497 KB, uploaded 22 June 2016]   |  

Abstract

The Internet of Things (IoT) scenario is strongly related with the advance of the development of wireless sensor networks (WSN) and radio frequency identification (RFID) systems. Additionally, in the WSN context, for a continuous feed, the integration of textile antennas for energy harvesting into smart clothing is a particularly interesting solution when the replacement of batteries is not easy to practice, such as in wearable devices. This paper presents the E-Caption: Smart and Sustainable Coat. It has an embedded dual-band textile antenna for electromagnetic energy harvesting, operating at global system for mobile communication (GSM) 900 and digital cellular system (DCS) 1800 bands. This printed antenna is fully integrated, as its dielectric is the textile material composing the coat itself. The E-Caption illustrates the innovative concept of textile antennas that can be manipulated as simple emblems. Seven prototypes of these “emblem” antennas, manufactured by lamination and embroidering techniques are also presented. It is shown that the orientation of the conductive fabric does not influence the performance of the antenna. It is also shown that the direction and number of the stitches in the embroidery may influence the performance of the antenna. Moreover, the comparison of results obtained before and after the integration of the antenna into cloth shows the integration does not affect the behavior of the antenna. View Full-Text
Keywords: textile antenna; energy harvesting; smart clothing; wearable devices textile antenna; energy harvesting; smart clothing; wearable devices
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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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MDPI and ACS Style

Loss, C.; Gonçalves, R.; Lopes, C.; Pinho, P.; Salvado, R. Smart Coat with a Fully-Embedded Textile Antenna for IoT Applications. Sensors 2016, 16, 938.

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