Reader antenna and RFID electronic shelf including the same
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United States of America Patent
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May 19, 2015
Grant Date -
Aug 22, 2013
app pub date -
Jan 22, 2013
filing date -
Feb 17, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A reader antenna includes dipole antennas, the dipole antennas including: a horizontal dipole antenna having the characteristic of horizontal polarization; and a dipole antenna perpendicular to the horizontal dipole antenna and including a vertical dipole antenna having the characteristic of vertical polarization, wherein the horizontal dipole antenna and the vertical dipole antenna may both have the characteristic of circular polarization. The reader antenna can be easily stored in an electronic shelf because it is realized in an ultrathin structure using a single-layered dielectric substrate.
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