Title :
Power-optimized waveforms for improving the range and reliability of RFID systems
Author :
Trotter, Matthew S. ; Griffin, Joshua D. ; Durgin, Gregory D.
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA
Abstract :
A major limitation in passive radio frequency identification (RFID) is the read range from the reader to tag, which is limited by the power available to the radio frequency integrated circuit (RFIC). The power-optimized waveform (POW) is a new type of multiple-tone carrier and modulation scheme that is designed to improve the read range and power efficiency of charge pump-based passive RFICs. This paper presents the POW concept, an estimation of effects on existing class 1 generation 2 RFID systems, several example POWs, simulation results, and measurement results of read range gains using a POW.
Keywords :
charge pump circuits; modulation; passive networks; radiofrequency identification; radiofrequency integrated circuits; telecommunication network reliability; RFID system reliability; charge pump-based passive RFIC; modulation scheme; multiple-tone carrier; passive radio frequency identification; power-optimized waveform; radio frequency integrated circuit; read range gain; Backscatter; Charge pumps; Envelope detectors; Legged locomotion; Passive RFID tags; Power system reliability; Radio frequency; Radiofrequency identification; Radiofrequency integrated circuits; Voltage;
Conference_Titel :
RFID, 2009 IEEE International Conference on
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-3337-7
Electronic_ISBN :
978-1-4244-3338-4
DOI :
10.1109/RFID.2009.4911196
