RFID Tag Antennas Designed by Fractal Features and Manufactured by Printing Technology

Based on the fractal features, this work is to design RFID Tag antennas with minimum area needed as a tag. The designed passive tag is to be responsible for the EM wave of 915MHz from the reader. The concept of complex conjugated matching is used in designing the antenna. Electromagnetic Simulation tool is also used to help this design as well. The techniques of measuring the material parameters necessary in the design procedure are also mentioned in this paper. Offset printing technology is employed to manufacture these tag antennas which is assumed as a kind of low-cost tags. Real performance of these tags is also shown in this work.