Title: Novel approach to textile design for barriers against electromagnetic radiation

Authors: M. Michalak, R. Brazis, V. Kazakevicius, J. Bilska, I. Krucinska

Addresses: Department of Fibre Physics and Textile Metrology, Technical University of Lodz, ul. Zeromskiego 116, 90-924 Lodz, Poland. ' Semiconductor Physics Institute, A. Gostauto 11, 01108 Vilnius, Lithuania. ' Semiconductor Physics Institute, A. Gostauto 11, 01108 Vilnius, Lithuania. ' Department of Fibre Physics and Textile Metrology, Technical University of Lodz, ul. Zeromskiego 116, 90-924 Lodz, Poland. ' Department of Fibre Physics and Textile Metrology, Technical University of Lodz, ul. Zeromskiego 116, 90-924 Lodz, Poland

Abstract: Human-friendly barriers against microwave radiation are designed using non-woven multiple layers of natural (flax) fibres, as well as flax and polypropylene fibre blends, with the split-ring resonators implanted so as to allocate the barrier properties in the pre-determined frequency band (X-band is selected for its applications in traffic radars and telecommunication). Oscillator model is proposed for determining the ring resonance frequency. The band of non-transmission up to ∼40 dB is observed. The band is found to shift depending on the flax and polypropylene contents in the blend, the distance between the ring centres, and on the number of textile layers.

Keywords: textile barriers; electromagnetic radiation; microwave transmission; natural fibres; flax fibres; polypropylene; non-wovens; split-ring resonators; metamaterials; textile design; microwave radiation; oscillator modelling.

DOI: 10.1504/IJMPT.2009.027828

International Journal of Materials and Product Technology, 2009 Vol.36 No.1/2/3/4, pp.166 - 175

Available online: 12 Aug 2009 *

Full-text access for editors Access for subscribers Purchase this article Comment on this article