Modeling of selected electric properties of textile signal lines using neural networks

Abstract

Research into new textile transmission lines is currently being conducted. Thanks to the flexibility of textile material used for their construction, these lines can become elements of a textronic system incorporated in modern smart garments to considerably enhance the comfort of its use. Textile transmission lines are required, however, to meet some specific requirements. A properly designed line should assure the minimum of signal losses and reflections. The normalized characteristic impedance of lines is assumed to be 50 ohms. This paper presents a new type of textile transmission lines. A method for measuring the line impedance is discussed. The construction of a measuring stand to be used for testing the electric properties of textile transmission lines is shown. Using artificial neural networks, a model for selected electric properties of textile transmission lines was obtained. The results of a sensibility analysis carried out based on the three-layer perceptron indicates a significant influence of selected model input quantities, such as the width of the inner conductive path, the distance between paths, path surface resistance, path thickness, and the number of warp and weft yarns occurring in a conductive path on the electric properties of textile transmission lines.

Mathematical Model for Predicting the Resistivity of an Electroconductive Woven Structure

“…1 Electroconductive flat textiles are developed for many applications. Especially, they are electronic components such as sensors and actuators, 2 electrodes for biosignal measurements, 3 transmission lines, 4 and antennas. 5 There are many technologies that can allow one to get highly conductive textile materials (CTM).…”

New concept in assessing compactness of woven structure in terms of its resistivity

“…They include heating elements [1,2], electrical circuits [3,4], antennas [5,6], transmission lines [7,8], electrodes [9,10], electromagnetic shielding materials [11,12]. This kind of textiles can be made using conductive fibres.…”

Crosstalk characterization of fabrics elaborated with conductive yarns

“…Several papers have been published addressing the design of a specific sensor [3]- [5] or a specific antenna [6]- [9] on textile substrate and some others have been devoted to characterize and model the fabrics [10] and demonstrate the functionally of e-textile as an electromagnetic shielding [11]. Most of these research works overlay these electronic devices on the fabrics by means of embroidery textile techniques [12] or printed techniques [13].…”