A Simple and Accurate Model for RFID Rectifier

A Simple and Accurate Model for RFID Rectifier

In this paper, a simple model for the UHF low power rectifier circuit is proposed. Using a novel approach to model the rectifier current waveform, simple analytical equations are derived. The output DC voltage and the efficiency of the rectifier are derived analytically. Simulation results of the re...

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Veröffentlicht in:IEEE systems journal 2008-12, Vol.2 (4), p.520-524
Hauptverfasser: Ashry, A., Sharaf, K., Ibrahim, M.
Format: Artikel
Sprache:eng
Schlagworte:
Circuit simulation
CMOS
Computational efficiency
Computing time
Direct current
Electric potential
Equations
Mathematical analysis
Mathematical models
micropower
Passive RFID tags
Power system modeling
Predictive models
Radiofrequency identification
rectifier
Rectifiers
RFID
Schottky diodes
Threshold voltage
UHF circuits
Voltage
wireless power transmission
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Beschreibung
Zusammenfassung:In this paper, a simple model for the UHF low power rectifier circuit is proposed. Using a novel approach to model the rectifier current waveform, simple analytical equations are derived. The output DC voltage and the efficiency of the rectifier are derived analytically. Simulation results of the rectifier using actual models are very close to those predicted by the proposed model. The derived formulas for the output DC voltage and the efficiency are simple and physically meaningful and can be used to optimize the performance of the rectifier.
ISSN:1932-8184
1937-9234
DOI:10.1109/JSYST.2008.2009206