Title :
Highly efficient multistandard RFIDs enabling passive wireless sensing
Author :
Essel, Jochen ; Brenk, Daniel ; Heidrich, Juergen ; Reinisch, Hannes ; Hofer, Guenter ; Holweg, Gerald ; Weigel, Robert
Author_Institution :
Inst. for Electron. Eng., Univ. of Erlangen-Nuremberg, Erlangen, Germany
Abstract :
This paper presents a highly efficient analog multistandard frontend for passive sensor-enabled RFID transponders. The CMOS only frontend is implemented in a 0.13 ¿m CMOS technology. The measured overall RF-to-DC power conversion efficiency of the analog frontend for a DC output power of 10 ¿W is about 7% and the maximum efficiency is about 15% at UHF. An implemented sensor interface consumes 1.4 ¿A at 1V supply. This interface contains an ultra low-power successive approximation ADC that uses the capacitive charge redistribution technique for its integrated DAC.
Keywords :
CMOS analogue integrated circuits; radiofrequency identification; transponders; CMOS technology; DC output power; RF-to-DC power conversion; analog frontend efficiency; analog multistandard frontend; capacitive charge redistribution technique; current 1.4 muA; integrated DAC; passive sensor-enabled RFID transponder; power 10 muW; sensor interfaces; size 0.13 mum; successive approximation ADC; CMOS technology; Passive RFID tags; Peer to peer computing; Power generation; Radio frequency; Radiofrequency identification; Rectifiers; Sensor systems; Transponders; Wireless sensor networks; ADC; RFID; analog frontend; multistandard; radio frequency identification; wireless sensing;
Conference_Titel :
Microwave Conference, 2009. APMC 2009. Asia Pacific
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-2801-4
Electronic_ISBN :
978-1-4244-2802-1
DOI :
10.1109/APMC.2009.5385424
