Recent Developments in RFID activities at UniCa

This paper summarizes the activities on RFID done during the last 2 years at the University of Cagliari, describing the advancements in the field and the collaborations established with other institutions. In particular, our main recent activities dealing with RFIDs are the following: study and exploit the advantages of SIW technology in the design of wearable RFID tags operating in the European UHF band, aiming for high isolation from the human body and high robustness with respect to the antenna-body distance variation, while maintaining a reasonably small size; overcome the very limited performance of epidermal antennas, due to the presence of the lossy body, which is cause of strong electromagnetic interactions, by using an appropriate configuration to obtain a platform tolerant epidermal antenna; investigate the possibility of designing fully 3D Printable RFID tags effectively using conductive filaments and polylactic acid substrates.