Abstract—This paper presents a low-power, passive, UHF RFID tag design. In order to reduce its cost, diode- connected NMOS in a standard CMOS technology is used instead of Schottky diodes. Here low power Amplitude Shift Keying (ASK) demodulator of Radio Frequency Identification (RFID) tag module is designed. RFID tag is pursued the least area, low price and low power. Here we used ASK demodulator, designed without resistors and capacitors. It uses a minimum of MOSFTES for designing envelope detector and Schmitt- trigger and it is differing from the existing ASK demodulator. This type of ASK demodulator is efficient in terms of, power consumption, and layout.
Index Terms—ASK demodulator, RFID tag, ASK demodulation, envelope detector, Ultrahigh Frequency
The authors are with the Reva Institute of technology and management Basavaraj PM’s (e-mail: pmbasavaraj@gmail.com, badiger_manju@yahoo.in, prashu_prashanth@yahoo.in, chandra007bnk@gmail.com).
Cite: Basavaraj P. M., Manjunath B., Prashanth P., and Chandrashekara, "Design of Low Power ASK CMOS Demodulator Circuits for passive Ultra High Frequency Tag," International Journal of Future Computer and Communication vol. 1, no. 4 pp. 369-371, 2012.
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