Title :
Analysis and design of an efficient RF/DC rectifier for UHF power harvester
Author :
Wu, Sau-Mou ; Lin, Chun-Yuan ; Pai, Ian-Ching
Author_Institution :
Grad. Sch. of Electr. Eng., Yuan-Ze Univ., Taoyuan, Taiwan
fDate :
Aug. 28 2010-Sept. 3 2010
Abstract :
An efficient RF-to-DC rectifier for UHF power harvester at 915MHz ISM band is presented. Systematic design and analysis are involved in the study. An optimal 7-stage RF-to-DC rectifier was designed and fabricated in TSMC 0.18um MM/RF CMOS process. Experimental measurement results showed that the proposed circuit had a power sensitivity of -9.5dBm while maintaining a DC output voltage of 1.2V and a current load of 10uA.
Keywords :
CMOS integrated circuits; energy harvesting; rectifying circuits; CMOS technology; ISM band; RF-DC rectifier; UHF power harvester; current 10 muA; frequency 915 MHz; voltage 1.2 V; Impedance; Integrated circuit modeling; Radio frequency; Radiofrequency identification; Rectifiers; Semiconductor device modeling; Sensitivity; Rectifier; native MOS transistor; passive UHF RFID; power harvester; voltage booster;
Conference_Titel :
Wireless Information Technology and Systems (ICWITS), 2010 IEEE International Conference on
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-7091-4
DOI :
10.1109/ICWITS.2010.5612274
