RFID system using circular polarized antenna
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United States of America Patent
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Mar 12, 2013
Grant Date -
Sep 16, 2010
app pub date -
Mar 9, 2010
filing date -
Mar 10, 2009
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present disclosure relates to an RFID (Radio frequency identification) system using circular polarized antennas, wherein a reader emits electromagnetic wave through reader antennas to recognize a tag and to read out customer information if a customer proximity is detected, where the reader antennas are installed at a kiosk body and at a rear proximity position of a floor surface on which a customer using the kiosk stands, and the reader antennas installed at the rear proximity position of the floor surface emits circular polarizing wave toward the kiosk, whereby the tag can be accurately recognized regardless of position of the tag of the customer.
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