【摘要】 对射频标签能量供应原理进行了详细的理论分析,设计了一个超高频远距离无源射频标签芯片的射频接口电路,包括电源恢复电路、稳压电路及解调整形电路。解决了超高频无源射频标签远距离能量供应和信号获取的问题。射频接口电路采用UMC 0.18μm混合信号工艺流片验证。测试结果表明,射频接口电路的性能可满足超高频远距离无源射频标签芯片的要求。更多还原

【Abstract】 The principle of the power supply to RFID tags is theoretically analyzed.An RF interface circuit for UHF long distance passive RFID tag is designed,which contains power generation circuit,regulator and demodulator.This design solves the problems of remote power supply and information receiving of UHF passive RFID tag.The RF interface circuits are taped out in UMC with 0.18 μm mixed signal process.Test results show that the RF interface circuit can satisfy the requirements of UHF long distance passive RFID tags.更多还原