IP Library › Patent Application 12340589
Patent Application
App. No. 12/340,589

OBJECT DIRECTION INDICATION THROUGH THE USE OF MULTIPLE ANTENNA BEAMS

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Quick Facts
Patent No.
US None
App. No.
12/340,589
Abstract

An arrangement of RFID antennas, comprises a first antenna having a beam centered at a first angle right of a center point and a second antenna having a beam centered at a second angle left of the center point, where the two beams being narrower than 70 degrees. This arrangement of RFID antennas enables division of the azimuth read zone of a reader into two or more zones which can provide a highly reliable indication of direction from the processing of RF tag reads.

Claims (8)

1 . A arrangement of RFID antennas, comprising:

a first antenna element having a beam centered at a first angle right of a center point; and

a second antenna element having a beam centered at a second angle left of the center point, wherein the two beams being narrower than 70°.

2 . The system of claim 1 wherein the two antennas are arrayed one on top of the other

3 . The system of claim 1 wherein the two antennas are arrayed side by side.

4 . The system of claim 1 wherein the antennas are circularly polarized of the same or opposite sense.

5 . The system of claim 1 where the antennas are linearly polarized of any arbitrary sense.

6 . The system of claim 1 where the antennas are of any arbitrary polarization.