A Brief Overview of RFID Tag Design in FPGA

Radio Frequency Identification (RFID) now-a-days, widely using technology in the field of auto-identification of objects. The system consists of two basic blocks- tag and a reader. The tag is attached to the object to be identified and it transmits the identification number and other information to the reader. The reader after receiving the identification number or any other information processed it with the server. The major task performed in RFID system is done by the tag because it is attached to the distant object and also working in harsh environment. Thus the design of the RFID tag is the key issue of the overall system. Efficient performance and power optimization of the tag is required because tag is placed at a non contact distance from the reader so regular maintenance of tag is not possible. Many design of the tag have been proposed over many years which concerns performance, power optimization and security issues. In this paper a brief overview of the RFID tag design is discussed along with the comparative study of different design of the tag.