Abstract

In this chapter, chipless radio frequency identification (RFID) technology is introduced. After a brief discussion of classical RFID systems, we focus here on chipless RFID. These two technologies are compared with barcode technology. In this book, we focus on the reader part of the chipless technology based on ultra-wideband (UWB). Thus, the principle of operation of UWB chipless tags will be given in more detail. This chapter is organized as follows:–Section 1.2 provides a general introduction to RFID technology and compares its main features with barcode technology.–Section 1.3 presents chipless RFID technology in UWB. The principle of work of time-coded and frequency-coded tags is also given.–Section 1.4 concludes the chapter.

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