1. Centre for Textile Science and Technology (2C2T), University of Minho, 4800-058 Guimarães, Portugal
2. Department of Science and Technology (ITN), Linköping University, SE-601 74 Norrköping, Sweden
3. Media and Information Technology (MIT), Linköping University, SE-601 74 Norrköping, Sweden
4. Department of Physics, Chemistry and Biology (IFM), Linköping University, SE-581 83 Linköping, Sweden
5. Division of Electromagnetic Warfare, Swedish Defense Research Agency (FOI), SE-583 30 Linköping, Sweden