本文在介绍射频电路设计理论的基础上，对UHF RFID的协议及频谱规范进行深入研究整理，系统的论述了射频前端从方案提出、电路实现到性能测试的整个过程，并创新性地研究了射频前端中的许多关键技术。-This paper describes the theory of RF circuit design basis, and the spectrum UHF RFID of Xie Yi Shen Ru norms of order, the system of paper Le RF front-end made from the program, Dianlushixian Dao performance test the whole process, through the innovative study of the RF front end of many of the key technologies.