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    a Schematic diagram of the BNT-based components constructed based on the entropy-increase strategy. b Digital photograph, cross-sectional SEM image, and EDS mappings of the MLCCs. c Unipolar P-E loops of MLCCs as a function of applied E. d Wrec and η of the MLCCs as a function of applied E. The comparison of (e) Wrec and η, (f) η and UF of the MLCCs with those of other recently reported state-of-the-art MLCCs. source: Nature Communications

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    a Schematic diagram of the BNT-based components constructed based on the entropy-increase strategy. b Digital photograph, cross-sectional SEM image, and EDS mappings of the MLCCs. c Unipolar P-E loops of MLCCs as a function of applied E. d Wrec and η of the MLCCs as a function of applied E. The comparison of (e) Wrec and η, (f) η and UF of the MLCCs with those of other recently reported state-of-the-art MLCCs. source: Nature Communications

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Embroidered textile antennas based on hybrid sewing thread

3.5.2018
Reading Time: 2 mins read
A A
source: RICE, FEE, University of West Bohemia in Pilsen, EPCI e-Symposium

Abstract:

This paper presents a research focused on textile antennas which are made embroidered from a novel hybrid conductive sewing thread. Thanks to embroidery, which has been recognized as one of the most promising manufacturing techniques for integrating antennas into clothing, the antennas are more robust, more flexible, fully washable and comfortable for wearing.

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These properties are important due to the increasing demand for smart textiles products in sport wear, medical or military segment. The objective of this research is to develop a wearable textile antenna optimized to the frequency of 868 MHz. Two different patterns of antennas, i.e. dipole and fractal dipole antenna were designed and investigated. The prototypes of embroidered antennas were realized with the novel brass hybrid sewing thread on a flame-resistant fabric substrate. The thread, which is composed of two strands each containing 48 polyester (PES) fibers and 4 brass microwires, was developed by the UVB Company in close cooperation with University of West Bohemia in Pilsen and it is protected is protected by Czech utility model CZ 28603.
The final optimized antenna could be used for applications such as RFID, personal protective clothing or IoT (Internet of Things) networks.


Title: Embroidered textile antennas based on hybrid sewing thread

Author(s): Martin Pavec, Radek Soukup and Ales Hamacek
Organisation(s): Faculty of Electrical Engineering, University of West Bohemia in Pilsen, Pilsen, Czech Republic
Symposium: 1st PCNS Passive Components Networking Days, 12-15th Sep 2017, Brno, Czech Republic
Reference: paper 4.4.  New Development Session., PCNS2017 Proceedings Pg.87-90
ISBN: 978-80-905 768-8-9
e-Sessions  Applications: Commercial, Medical, Defense
e-Sessions Scope Components: RF passives
e-Sessions Topics: Technology, Materials, Measurement & Test


read the full paper in pdf here.

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