Title :
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
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 EPCTM 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;
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
DOI :
10.1109/ASICON.2009.5351346
