Comprehensive Study on the Impact of Dielectric and Magnetic Loss on Performance of a Novel Flexible Magnetic Composite Material

This paper introduces a novel flexible magnetic composite material for RFID and wearable RF antennas. The critical issue of dielectric and magnetic losses combined is addressed for the first time for such a material in the UHF frequency band and is thoroughly investigated using a hybrid method including electromagnetic simulations and statistical tools. The successful implementation of the flexible magnetic composite material will enable the significant miniaturization of RF passives and antennas in UHF frequency bands, especially for applications requiring conformal modules that can be easily fine-tuned, while minimizing the decrease in performance due to losses.