Title :
RF energy harvester design with autonomously adaptive impedance matching network based on auxiliary charge-pump rectifier
Author :
Zhao, Ping ; Glesner, Manfred
Author_Institution :
Inst. of Microelectron. Syst., Darmstadt Univ. of Technol., Darmstadt, Germany
Abstract :
This paper presents an implementation of a radio frequency wave energy harvester with the capability of self-adjusting the matching network to adapt to changing load conditions. An auxiliary charge-pump is designed to supply the power for the supplemental control unit. The design is implemented in a standard 0.13-μm CMOS process. The results show that the power transfer efficiency with using the proposed design can achieve a level of over 70% independent of the load conditions.
Keywords :
CMOS integrated circuits; energy harvesting; impedance matching; radiofrequency integrated circuits; rectifiers; RF energy harvester design; autonomously adaptive impedance matching network; auxiliary charge-pump rectifier; changing load conditions; power transfer efficiency; radio frequency wave energy harvester; size 0.13 mum; standard CMOS process; supplemental control unit; Energy harvesting; Feedback control; Impedance; Radio frequency; Resistance; Resistors; Voltage control;
Conference_Titel :
Circuits and Systems (ISCAS), 2011 IEEE International Symposium on
Conference_Location :
Rio de Janeiro
Print_ISBN :
978-1-4244-9473-6
Electronic_ISBN :
0271-4302
DOI :
10.1109/ISCAS.2011.5938106
