On the modeling of conductive textile materials for SoftWearAntennas

Wideband simulation of the surface resistance requires that both thickness and conductivity are adapted for the conductive fabric. Because conductive fabrics are woven of metal-coated non-conductive yarns, an approach of using a thickness different from the physical thickness of the fabric may be justified. This approach is consistent with the fact that only part of the cross-section of the signal trace carries current. The sheet resistance defines the low-frequency resistive loss and connects the thickness of the fabric to its conductivity. Furthermore, the applied impedance model should yield a nonzero surface resistance being equal to the dc sheet resistance.