A low-power analog front end of passive UHF RFID tag IC for EPC™ C1G2

Author

Zhang, Shaojie ; Sun, Lingling ; Hong, Hui ; Liu, Jun ; Han, Jian ; Luo, Shiqin

Author_Institution

Key Lab. of the RF Circuit & Syst., Hangzhou Dianzi Univ., Hangzhou, China

fYear

2009

fDate

20-23 Oct. 2009

Firstpage

557

Lastpage

560

Abstract

This work¹ presents the design of a low-power analog front-end circuitry for fully integrated passive radio frequency identification tag operating at UHF for EPC^TM C1G2. The whole circuit includes voltage multiplier, voltage reference, voltage regulator, ASK demodulator, ring oscillator, power-on-reset and modulator. In this paper, ASK demodulator with digital control is proposed and a clock calibration method for ring oscillator is chosen. The entire circuit has been designed with SMIC 0.18 μm CMOS technology. Simulation results by cadence software show the analog front-end circuitry consumes less than 2.5 uW.

Keywords

CMOS analogue integrated circuits; UHF integrated circuits; UHF oscillators; amplitude shift keying; clocks; demodulation; demodulators; digital control; low-power electronics; radiofrequency identification; reference circuits; voltage multipliers; voltage regulators; ASK demodulator; CMOS technology; EPC C1G2; cadence software; clock calibration method; digital control; fully integrated passive radio frequency identification tag; low-power analog front-end circuitry; passive UHF RFID tag; power-on-reset; ring oscillator; size 0.18 μm; voltage multiplier; voltage reference; voltage regulator; Amplitude shift keying; Analog integrated circuits; CMOS technology; Demodulation; Passive RFID tags; Radiofrequency identification; Ring oscillators; UHF circuits; UHF integrated circuits; Voltage-controlled oscillators; Radio frequency identification (RFID); low power; passive tag;

fLanguage

English

Publisher

ieee

Conference_Titel

ASIC, 2009. ASICON '09. IEEE 8th International Conference on

Conference_Location

Changsha, Hunan

Print_ISBN

978-1-4244-3868-6

Electronic_ISBN

978-1-4244-3870-9

Type

conf

DOI

10.1109/ASICON.2009.5351346

Filename

5351346