RFID chip and antenna with improved range
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United States of America Patent
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Mar 17, 2009
Grant Date -
May 3, 2007
app pub date -
Oct 29, 2005
filing date -
Oct 29, 2005
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A “coil-on-a-chip” RFID tag having an rfid integrated circuit and an antenna contemporaneously formed on a substrate. The antenna is a helical multiple layer, multi-turn coil having an axis of revolution oriented at an angle, preferably ninety degrees, with respect to the major body plane of the rfid integrated circuit. The coil has a central opening with an annular core of magnetically permeable material. The RFID tag has an increased operating range over known ID tags.
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