FE model of EM shielding textile materials

Technical textile materials can be successfully used also as a protection against external electromagnetic field. There are available technologies to improve the material surface - with use of different (galvanize, plate, etc.) technologies. The paper deals with woven textiles - compound of cotton, polyester and conductive fibers. The paper presents the impact of electromagnetic field on special woven textile materials and describes the shielding principles. The measurement technique used at FEL CTU in Prague is also described and the base measuring technologies are discussed. Nevertheless, the major part of the paper is dedicated to experience of authors with numerical (FE) modeling of shielding textiles and to description of designed and used methodology of FE model evaluation. The numerical results are compared to measurement and to mathematical (Matlab) model results.