Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2008-06-20
2010-12-07
Nguyen, Tai T (Department: 2612)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S572100, C340S572400, C340S572800, C340S573400, C235S375000, C235S385000, C235S492000
Reexamination Certificate
active
07847697
ABSTRACT:
This disclosure describes a radio frequency identification (RFID) tag that includes a three-dimensional (3D) loop antenna. The 3D loop antenna includes a first conductive portion having a length and width that substantially exceed a thickness. The length and width of the first conductive portion substantially lie in a first plane. The 3D loop antenna includes a second conductive portion having a length and width that substantially exceed a thickness. The length and width of the second conductive portion substantially lie in a second plane that is substantially parallel to the first plane. An RFID circuit electrically connected to the loop antenna excites a current through the first and second conductive portions in a current loop that lies in a third plane that is not substantially parallel to the first and second planes. In some instances the third plane may be substantially perpendicular to the first and second planes.
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Banerjee Swagata R.
Egbert William C.
Misemer David K.
Sainati Robert A.
3M Innovative Properties Company
Nguyen Tai T
LandOfFree
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