| Radio frequency identification (RFID) system is a wireless communication system in which the radio link between the base station and the tags are furnished by the modulated back-scattered waves. It uses a lot of technologies, such as IC, antenna, wireless transceiver, data coding and electromagnetic. Few advantages of RFID are not requiring the transponder to be in line-of-sight, long distance identification, readable and writable tags, multiple tags identification, handle environments like moisture, dirt frost etc. So it is becoming more and more popular.In this paper, we introduce the basic theory, fundamental operating principles and related standards. Also we discuss the key technology and solutions of receiver in RFID reader. Then the whole system solutions supporting EPC Global Class1 Gen1&Gen2 standards about RFID reader are presented. Also we use TI's DSP TMS320VC5416 and ATMEL's microcontroller ATmega128L as CPU for making two hardware platforms, and one with ADC, DAC, the other with Anadigm's special IC for RFID. Finally, we set down detailed test plan and make the test. After the test, we draw some useful conclusions and give the guide to the continuous work. |
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