Antennas for object identifiers in location systems
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United States of America Patent
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-
Oct 28, 2008
Grant Date -
Oct 26, 2006
app pub date -
Dec 27, 2005
filing date -
Dec 27, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
Transmitters or object identifiers are discloses that are able to radiate consistent power regardless of the object where the transmitters or object identifiers are placed. The transmitter or object identifier may include a vertical loop antenna. The loop plane of the vertical loop antenna is substantially perpendicular to the surface of the object where the transmitter or object identifier is placed. The transmitter or object identifier may include a folded vertical loop antenna where the loop plane of the vertical loop antenna is extended and folded to have additional loop planes. The antennas of the present invention enable the transmitter or object identifier to radiate consistent power regardless of the object where the transmitter or object identifier is placed and regardless of the orientation of the transmitter or object identifier.
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