3D-Printed Tunable UHF RFID PIFA Realized with BaTiO3 Enhanced PLA for Multipurpose Applications

In this work, a new and unconventional design for a UHF RFID PIFA antenna has been studied and realized. 3Dprinting by Fused Deposition Modelling (FDM), combined with the use of lab-made PLA filament doped with BaTiO 3 , enabled the realization of the proposed design. This last consists in two elements sliding one on the other, so enabling the tuning of the resonance frequency as well as the impedance of the antenna.