Title :
Design of a highly efficient CMOS rectifier for passive communication systems
Author :
Essel, Jochen ; Brenk, Daniel ; Heidrich, Juergen ; Hofer, Guenter ; Holweg, Gerald ; Weigel, Robert
Author_Institution :
Inst. for Electron. Eng., Univ. of Erlangen-Nuremberg, Erlangen, Germany
Abstract :
This paper presents the design of a highly efficient CMOS rectifier for passive communication systems. The integrated rectifier is implemented in a 0.13 μm CMOS technology. The measured overall RF-to-DC power conversion efficiency for a DC output power of 10 μW (1V and 10 μA) is about 25%. The maximum efficiency for a DC output voltage of 1V is about 43% at UHF and the efficiency of the rectifier at -15 dBm RF input power is still 20%. This rectifier is using a self threshold cancelation technique to enhance the efficiency significantly.
Keywords :
CMOS integrated circuits; radiofrequency identification; rectifiers; CMOS rectifier design; RF-to-DC power conversion efficiency; RFID; current 10 muA; passive communication systems; passive radio frequency identification; power 10 muW; self threshold cancelation technique; size 0.13 mum; voltage 1 V; CMOS integrated circuits; Radiofrequency identification; Schottky diodes; Transponders; UHF measurements; Wireless communication; Wireless sensor networks; CMOS; RFID; radio frequency identification; rectifier; wireless communication;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2010 Asia-Pacific
Conference_Location :
Yokohama
Print_ISBN :
978-1-4244-7590-2
Electronic_ISBN :
978-1-902339-22-2
