A discrete model of the DC charge-up phase in RFID rectifiers

Author

Raben, Hans ; Borg, Johan ; Johansson, Jesper

Author_Institution

Dept. of Comput. Sci., Lulea Univ. of Technol., Lulea, Sweden

fYear

2013

fDate

20-22 June 2013

Firstpage

341

Lastpage

345

Abstract

This paper presents a discrete model of the DC charge-up phase in a single MOS diode rectifier for an inductively coupled RFID system. The model was derived for a rectifier driven by a coil antenna and with a storage capacitor connected to the output. A comparison between the model and a simulation of a rectifier implemented in a 0.35 μm CMOS process demonstrated fast and accurate modeling of the charge up-phase for both LF and HF RFID applications. The model was used to determine the relationship between the voltage induced in the coil antenna and the available chip current based on a specification for the durations of the charge-up and the data-communication phases in a typical LF RFID application.

Keywords

CMOS integrated circuits; coils; radiofrequency identification; rectennas; rectifying circuits; semiconductor diodes; CMOS process; DC charge-up phase; MOS diode rectifier; RFID rectifier; coil antenna; discrete model; inductively coupled RFID system; size 0.35 mum; Capacitors; Coils; Computational modeling; Integrated circuit modeling; Mathematical model; RLC circuits; Radiofrequency identification; CMOS; RFID; analog integrated circuits; low power; low voltage; rectifier;

fLanguage

English

Publisher

ieee

Conference_Titel

Mixed Design of Integrated Circuits and Systems (MIXDES), 2013 Proceedings of the 20th International Conference

Conference_Location

Gdynia

Print_ISBN

978-83-63578-00-8

Type

conf

Filename

6613370