Title :
A non-linear model for micropower rectifiers in UHF-band RFIDs
Author :
Liu, Xiao ; Dehollain, Catherine
Author_Institution :
RFIC group, Ecole Polytech. Fed. de Lausanne, Lausanne, Switzerland
Abstract :
This paper proposes a non-linear transient model for voltage-doubler circuits. By using a novel approach to model the waveform of intermediate voltages, both the dc output voltage and power spectrum are derived. Substrate currents are included to enable accurate modelling of high power applications. The model is validated by both low and high power rectifiers in UMC CMOS 0.18 μm technology. The proposed model is in good agreement with simulations in both time and frequency domains.
Keywords :
CMOS integrated circuits; UHF integrated circuits; radiofrequency identification; rectifiers; UHF-band RFID; UMC CMOS technology; dc output voltage; micropower rectifiers; nonlinear model; power spectrum; size 0.18 mum; voltage-doubler circuits; CMOS; Radio frequency identification (RFID); micropower; model; rectifier; wireless power transmission;
Conference_Titel :
Electronics, Circuits, and Systems (ICECS), 2010 17th IEEE International Conference on
Conference_Location :
Athens
Print_ISBN :
978-1-4244-8155-2
DOI :
10.1109/ICECS.2010.5724697
