Referring To The Autonomous Protocol Supporting The Security Requirements Of Class C About UHF RFID Designs The Baseband Of The Chip

The Passive Radio Frequency Identification is a non-contact communication method.It has the advantages of low power consumption,low cost,small size,and no need of the power supply from battery.During the communication process,the reader emits radio frequency energy containing specific information.The tag interacts with the reader by changing its radar reflection section.With the continuous expansion of this application,especially in high-level hierarchical applications,there are some risks that the wireless air interface communication is intercepted,falsified,and even the terminal is being spoofed.Therefore,the traditional air interface security authentication mechanism cannot meet the application of high security requirements.The thesis refers to the national standard ?Air Interface for Radio Frequency Identification Part I: 800/900 MHz Parameters? that is issued by China,which meets the constraints of power consumption and cost,improves the level of encryption,researches and designs the digital tag with the function of encryption authentication and secure communication.The design of the digital tag with the function of encryption authentication and secure communication is studied in this thesis,firstly,It describes the specific design process of implementing these two functions and proposes the interaction flow of baseband security in detail,which is in accordance with the self-protocol standard,so that it can read and write correctly.The thesis also adopted two security measures,they are the protection from the label storage and cyclic redundancy check(CRC),to meet the security requirements of the chip.Secondly,on basis of the constraints of cost,the strategies of area and power consumption optimization are used in baseband coding design,baseband synthesis simulation,and baseband physical design.Finally,the UHF RFID test platform based on the reader platform called NI instrument,the FPGA board level model and the oscilloscope that can simultaneously monitor the carrier and signal are analyzed and tested.The test results show that the digital baseband with the function of encryption authentication and secure communication meets the requirements of national standard of the C-type.In the process of designing and implementing the digital baseband of the chip,the thesis presents the design scheme and flow of low-cost and low-power with the RFID chips that support the requirements of class C security,including the designs of low-power architecture,multi-clock domain,low-voltage,gated clock,traveling wave counter,parallel check code,Gray code,multi-supply voltage technology and clock tree synthesis optimization.According to the analysis of the power dissipation from EDA and Encounter,the results show that the strategies of low power consumption are compared to meet the target.Finally,the encryption security chip is successfully taped out on the SMIC 0.18 ?m process and then tests its functions correctly.