Miniaturized chipless RFID tag using multiple microstrip resonators

This paper proposes a new design to implement chipless RFID technology using rectangular ring shaped microstrip resonators of various structures to obtain different frequency signatures in the super high frequency range (2–3 GHz). It is observed that the prototype has minimal return loss and maximum resonance level has also been achieved which has been verified with graphical stimulated results and by numerical retrieval of parameters.