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US 2009/0289873 A1Published application
Object direction indication through the use of multiple antenna beams
OwnerRobert Schilling, Matthew Lannoninventors
Life of this patent
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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.
Claims6
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°.
Dependencies are inferred from the claim text.