导　　师： 张为

学科专业： 080903

授予学位： 硕士

作　　者： ;

机构地区： 天津大学

摘　　要： RFID/(Radio Frequency Identification/),即无线射频识别,是一种利用射频信号自动识别目标对象并获取相关信息的技术。RFID系统一般由读卡器和射频标签组成。在实际应用中,射频标签附着在待识别物体上,当带有射频标签的被识别物品通过读卡器的可识读范围时,读卡器与标签之间建立起无线方式的通信链路,自动以无接触的方式将标签中的约定识别信息读出来,从而实现自动识别物品或自动收集物品标志信息的功能。RFID标签具有非接触、快速扫描、读取距离远、抗污染、安全性强、存储容量大和可重复使用的特点,逐渐被广泛应用在供应链管理、门禁控制、公共运输、身份识别和物体跟踪等多个领域。 论文介绍了RFID技术的发展与应用,阐述了RFID系统的相关技术原理,并详细分析了设计所依据的ISO//IEC 18000-6 Type C协议。按照该协议,以低功耗为目标,提出了标签数字基带处理电路的架构,完成了符合应用要求的数字处理电路设计。最终采用Chartered 0.35μm 3.3V CMOS工艺流片。数字处理电路的版图面积为660.5×648.5μm2;使用Power Compiler对布局布线后提取的门级网表进行功耗分析表明,在系统时钟为3MHz、电源电压为3.3V的工作条件下,电路的功耗为187μw。对芯片进行测试的结果表明该数字处理电路可以正确执行九条指令,完成既定功能。 RFID /(Radio Frequency Identification/) is a technology used to identify and to get information from the target objects automatically. RFID system is typically composed of reader and tag. In practical applications, the tag with identified information is attached to objects. The wireless communication link is built up when the tag comes into a certain range, where the reader can get the information from the tag. With the advantage of non-contact, rapid scanning, anti-pollution and safety, RFID is widely used in many fields such as supply chain management, security, track of important objects, access control to buildings, public transportation, and many more. This paper introduces the development and application of RFID, expounds the related technologies of RFID systems, and analyzes the ISO // IEC 18000-6 Type C protocol. In accordance with the protocol, the digital part of UHF tag was designed. In the end, the chip of tag was implanted with 3.3V voltage in Chartered 0.35μm CMOS technology. The area of digital chip was 660.5×648.5μm2, and the power analysis with Power Compiler showed that power dissipation of the digital circuit was 187μw under clock of 3M and operating voltage of 3.3V. The test result on the fabricated chip showed that the digital processing circuit can implement all the instructions correctly.

关 键 词： 射频识别 标签 数字处理电路 低功耗

领　　域： [自动化与计算机技术] [自动化与计算机技术]