超高频RFID无源读写器的硬件设计与实现

摘要

RFID ultra-high frequency band has the operation distance,fast communication speed,low cost,small size and other advantages,is more suitable for the application of logistics,supply chain of the future.In view of some hardware module of RFID,the corresponding interface circuit design,combined into a practical ARM,the realization of a working frequency is 850MHz ～ 930MHz,effective reading distance of up to 8 meters based on RFID reading and writing device,experiments show that,product stability,running the good effect.%超高频频段的RFID系统具有操作距离远,通信速度快,成本低,尺寸小等优点,更适合未来物流、供应链领域的应用.本文针对RFID的一些硬件模块,设计了相应的接口电路,组合成一个实用的基于ARM、实现一个工作频率为850～930MHz、有效识读距离达8m的RFID读写器,实验表明,所研发的产品运行稳定、效果良好.