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A Design of Transceiver for 13.56MHz RFID Reader using the Peak Detector with Automatic Reference Voltage Generator  

Kim, Ju-Seong (Department of Electronic Engineering, Konkuk University)
Min, Kyung-Jik (Department of Electronic Engineering, Konkuk University)
Nam, Chul (Department of Electronic Engineering, Konkuk University)
Hurh, Djyoung (Department of Electronic Engineering, Konkuk University)
Lee, Kang-Yun (Department of Electronic Engineering, Konkuk University)
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Abstract
In this paper, the transceiver for RFID reader using 13.56MHz as a carrier frequency and meeting International Standard ISO 14443 type A, 14443 type B and 15693 is presented. The receiver is composed of envelope detector, VGA(Variable Gain Amplifier), filter, comparator to recovery the received signal. The proposed automatic reference voltage generator, positive peak detector, negative peak detector, and data slicer circuit can adjust the decision level of reference voltage over the received signal amplitudes. The transmitter is designed to drive high voltage and current to meet the 15693 specification. By using inductor loading circuit which can swing more than power supply and drive large current even under low impedance condition, it can control modulation rate from 30 percent to 5 percent, 100 perccnt and drive the output currents from 5 mA to 240 mA depending on standards. The 13.56 MHZ RFID reader is implemented in $0.18\;{\mu}m$ CM08 technology at 3.3V single supply. The chip area excluding pads is $1.5mm\;{\times}\;1.5mm$.
Keywords
Peak Detector; RFID Reader; Inductor Loading; Modulation; Automatic Reference Voltage Generator;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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