RFID读写器的电路设计的实现及其测试

The Design and Test of RFID Reader Circuit

RFID通过射频信号进行非接触式的双向数据通信,可以实现物与物之间的自动识别。传统设计中的循环冗余校验(CRC)电路在处理数据流移时,会增加时钟延迟,降低了效率,通过对CRC运算过程做一些递归变换,找到一种消除时钟间隔的电路设计方法;在射频收发模块(RF)电路设计中,对其锁相环电路、功率放大电路设计以及双通道检波接收电路进行了重新设计。测试结果表明,RFID的识别效果良好。

Through radio frequency signals,the RFID can give the non-contact two-way data communications,which achieved automatic recognition between objects.In the traditional design,when a cyclic redundancy check（CRC） circuits are processing data stream moves,it will increase the clock delay,which made lower efficiency.Based on the CRC operation process to do some recursive transformation,the paper find a eliminating clock interval method for circuit design in RF transceiver module;in RF circuit design,the paper gives the redesigns of the phase-locked loop circuit,power amplifying circuit design as well as the dual channel detection circuit.The test results show that the identification of good results.