Notice of Retraction: The Low-Power Design for Handheld RFID Readers

According to meet the requirement of the low power consumption in the handheld RFID reader, it is introduced that a design strategy of power consumption and a scheme of component selection in the design of an handheld RFID reader based on the MSP430F149 MCU, and a method, when combined with the working status of the RFID reader, is proposed to reduce the power consumption through adjusting the clock frequency of MSP430F149 MCU and intelligent managements of system working mode. Test results indicate that the method is useful to reduce the system power consumption.