UHF class-4 active two-way RFID tag for a hybrid RFID-based system

Radio Frequency Identification (RFID) is a promising technology that has experienced tremendous growth by revolutionizing a variety of industry sectors and applications. Despite its wide use, the ability to track an object when the tag goes out of tracking/read range has been a major drawback. This...

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Bibliographic Details
Main Authors: Jadhav, G. N., Hamedi-Hagh, S.
Format: Conference Proceeding
Language:English
Subjects:
Active RFID tags
Active tag
Demodulation
Downlink
etc
Passive RFID tags
Passive tag
Power amplifier
Reader
Rectifiers
Repeaters
RFID
Semi-Passive tag
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Summary:Radio Frequency Identification (RFID) is a promising technology that has experienced tremendous growth by revolutionizing a variety of industry sectors and applications. Despite its wide use, the ability to track an object when the tag goes out of tracking/read range has been a major drawback. This paper proposes a novel class-4 active two-way (C4-ATW) RFID tag to maximize/increase the tracking range by using a tag hopping technique. The tag hopping technique enables C4-ATW RFID tags to power their own communication with other C4-ATW or passive RFID tags to maximize the read range while the reader's functionality remains unchanged. Simulation results using 90 nm 1P9M CMOS process parameters indicate that a C4-ATW RFID tag can operate at a minimum input power of -20 dBm at a 120 kbps data rate; the achieved read range between reader to tag is 36.7 m at 4 W reader power, and tag-to-tag is 2.2 m at 25 mW of tag power. Combined, the analog front end and baseband controller consume 50.3 mW of power and the area of the chip, including pads, is 854 μm × 542 μm.
DOI:10.1109/RFM.2011.6168762