On the modeling of conductive textile materials for SoftWearAntennas

Wide-band 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 non-zero surface resistance being equal to the dc sheet resistance.