Signal Space Representation of Chipless RFID Tag Frequency Signatures
Radio Frequency IDentification (RFID) is one of the most prominent technological advancements in modern times that have steadily permeated into all aspects of modern human society. Its applications vary from inventory control to finance and medicine. RFID technology enables automatic and wireless communication of information which serves as an attractive alternative to many existing information tagging techniques such as 1D and 2D optical bar-codes in a multitude of applications. However, the cost of chipped RFID tags has hindered the use of RFID technology in applications involving large scale item tagging where optical barcodes are still being widely used, e.g. in library management systems, the retail industry and logistics.