An electromagnetic shield design using frequency selective surfaces on a textile substrate

Abstract

In this paper, a flexible bandstop frequency selective surface (FSS) array fabricated on jeans substrate using silver-coated conductive yarn with a computerized embroidery machine is presented for X-band. The S parameters of the fabricated design are measured through the free space method. The measured S-parameters showed significant stopband characteristics between 8 GHz-11.5 GHz for -30o to 30o degrees wide incident angles. Moreover, the transmission, reflection, absorption, and shielding effectiveness (SE) of the FSS array are also computed using measured S parameters. The prototype provides shielding effectiveness of more than 30 dB in X-band and has dominant absorption behavior for some frequencies within the band.

Preparation and characterization of Y-shaped fractal frequency selective fabric

“…Therefore, FSFs can be prepared by increasing the conductivity of the embroidery yarn and using periodic embroidery patterns. 26,27 Noaman Naseer 28 et al prepared a flexible band-stop FSS array for X-band on jeans substrate by using silver-coated conductive yarn and computer embroidery machine. The results showed that the prototype provides more than 30 dB SE in the X-band and has main absorption behavior for some frequencies in the band.…”