RFID tag for conductive surface
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United States of America Patent
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N/A
Issued Date -
Nov 29, 2007
app pub date -
May 10, 2007
filing date -
May 17, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An RFID tag is disclosed for application to a conductive surface. The RFID tag includes an insulating substrate and a first conductive plate provided on the insulating substrate such that the first plate and the conductive surface form a first capacitor, an antenna provided on the substrate and connected to the first capacitor to form a resonant circuit, at least when the tag is applied to the conductive surface, and an integrated circuit connected to the resonant circuit. Preferably, the RFID tag includes a second conductive plate on the substrate, the second plate and conductive surface forming a second capacitor. The two capacitors may be connected in series. A method of applying an RFID tag to a conductive surface is also disclosed.
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