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| | RFID in Retail Stores: Suggestions for Eliminating Smart Shelves |
 | | Another technology for smart shelves that is said to eliminate the need for coaxial cable and provide good resolution on a shelf at low cost is the recirculating phase array antenna system of AWID (Applied Wireless Identification Group, Hollister, California) coupled with their fast look-ahead decay sensing system. |
 | | Numerous antenna configurations can be considered, including those discussed at www.rauma.tut.fi such as square patches, the ¼-lambda spiral whip, the sub ½-lambda dipole, the ¼-lambda whip in spiral form, and the like. |
 | | Antennas for the tags may be made by any method, including metal deposition, printing of conductive inks, etc. By way of example, the RFID tags may employ conductive ink technology of RCD Technologies (Bethlehem, PA) (see http://www.rcdtechnology.com/applications.html). |
| www.jefflindsay.com /rfid1.shtml (5661 words) |
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