A Cost-Effective Antenna Design for Printed UHF RFID

In this paper, the printed UHF RFID tag dipole antenna design is optimized to reduce the consumption of conductive material. The optimized design is achieved by narrowing the width of the low current density areas. The proposed optimized dipole antenna design requires less amount of conductive ink to achieve the equivalent radiation efficiency level as the ideal copper-trace dipole antenna. The simulation results indicate the saving amount of approximately 43% when comparing with the silver ink printed flat dipole antenna design.