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Radio
Frequency
Identification is the use of radio communication to identify an object.
Early work dates back to the 1930's. More recently,
folks
have developed passive tags -- tags with no battery -- that operate in
the ultra-high-frequency (UHF) bands. Our tutorial covers the
UHF
physical layer -- the radio waves and how they get from reader to tag
and back. The book has a much more detailed discussion of these issues.
RFID Revolution's eLearning provides a less technical and
broader
discussion of RFID in general. oneTagWorld is a Python
simulator
that lets you watch an emulated EPC Gen2 reader and tag communicate
step-by-step. The MPR Reader GUI, also written in Python,
provides an open-source graphical interface for controlling WJ
Communications' (now TriQuint Semiconductor's) compact PC-card readers.
We also provide a brief report describing interception of the
backscattered signal from a UHF tag, just in case you thought it
couldn't be done.
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