Baseband Processor of Multi-purpose RFID Tag using VHDL

Radio-frequency identification (RFID) is the use of a wireless non-contact system that uses radio-frequency electromagnetic fields to transfer data from a tag attached to an object, for the purposes of automatic identification and tracking. A large amount of work has been undertaken in order to optimize the performance and cost factor of readers and tags involved in the RFID system. FPGAs are considered as potential target device for implementing RFID systems. This architecture aims at the design of an FPGA implementable RFID Tag processor for the purpose of baseband signal processing. The design takes into consideration the flexibility of the entire system with the help of independent sub modules. Also, the suggested architecture has taken into consideration the creation of innovative single tag for multiple purposes which can interact with various types of readers and convey the required information to each one of them. The RFID tag has been designed in accordance to EPCglobal class1 Generation2 standard for the operation in the range of 860-906 MHz in the air interface.