OBJECT DIRECTION INDICATION THROUGH THE USE OF MULTIPLE ANTENNA BEAMS

• US 20090289873A1
• Filed: 12/19/2008
• Published: 11/26/2009
• Est. Priority Date: 12/19/2007
• Status: Abandoned Application

• Current Assignee: Matthew Lannon, Robert Schilling
• Original Assignee: Matthew Lannon, Robert Schilling
• Inventors: SCHILLING, ROBERT, Lannon, Matthew
• Application Number:
  US12/340,589
• Publication Number:
  US 20090289873A1
• Time in Patent Office: Days
• US Class Current: 343/893
• CPC Class Codes: G06K 7/0008 General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
• CPC Class Codes: G06K 7/10316 using at least one antenna particularly designed for interrogating the wireless record carriers antennas in general H01Q1/22

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

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.