A portable UHF RFID （radio frequency identification） reader is designed to meet the needs of data acquisition in lOT （internet of things）.The working principle of the system is given,the RF front-end circuit is taken as the focal point,the RF signals are transceived by special chip AS3992 and its peripheral circuit,the process and control of baseband signal are completed by MCU STM32 series.It is also briefly introduced that the software flow of system and details for low power design. Practice shows the RFID reader implemented in this pape...
