A UHF Mobile RFID Reader IC with Self-Leakage Canceller

A UHF mobile single chip RFID reader is implemented in 0.18μm CMOS process. Developed IC achieves DA output power of 3 dBm, OIP3 of 14.8 dBm, phase noise of -100 dBc/Hz at 100 kHz offset, noise figure of 35.5 dB for talk mode, 6.2 dB for listen before talk (LBT) mode, and current consumption of 108...

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Bibliographic Details
Main Authors: Lee, Jeiyoung, Choi, Jaehong, Lee, Kang Ho, Kim, Bonkee, Jeong, Minsu, Cho, Youngho, Yoo, Heeyong, Yang, Kyoungon, Kim, Seyeob, Moon, Seong-Mo, Lee, Jae-Young, Park, Sangkyu, Kong, Wanchul, Kim, Jin, Lee, Tae-Ju, Kim, Bo-Eun, Ko, Beom-Kyu
Format: Conference Proceeding
Language:English
Subjects:
Integrated circuit noise
leakage cancellation
listen before talk (LBT)
Mobile antennas
Mobile handsets
mobile RFID
Noise figure
Phase noise
Power generation
Radiofrequency identification
RFID reader
Switches
UHF integrated circuits
Voltage-controlled oscillators
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Summary:A UHF mobile single chip RFID reader is implemented in 0.18μm CMOS process. Developed IC achieves DA output power of 3 dBm, OIP3 of 14.8 dBm, phase noise of -100 dBc/Hz at 100 kHz offset, noise figure of 35.5 dB for talk mode, 6.2 dB for listen before talk (LBT) mode, and current consumption of 108 mA from a 1.8 V supply. With an external PA, Tx output generates output power of 27 dBm with OIP3 of 42.5 dBm. A leakage signal cancellation scheme is employed to suppress inevitable Tx leakage into Rx input. At a distance of 90 cm between antenna and tag the average recognition ratio is increased from 0% to 42.8% by the leakage canceller.
ISSN:1529-2517
2375-0995
DOI:10.1109/RFIC.2007.380881