Radio frequency identification functionality coupled to electrically conductive signage
The present disclosure relates to multiple embodiments of a signage having radio-frequency responsive features, methods of making and using the signage, and the performance characteristics of the signage. These embodiments include a cutout, aperture, or opening in an electrically conductive element into which or adjacent to which is placed an RFID tag or chip.
1. An electrically conductive, radio frequency identification (RFID)-enabled signage article, comprising:
an electrically conductive element including a cutout; and
an RFID tag inset into the cutout;
wherein the electrically conductive element includes at least one of an electrically conductive substrate or an electrically conductive sheeting.
2. The signage article of claim 1 , wherein the electrically conductive element is a conductive substrate positioned adjacent to optically active sheeting.
3. The signage article of claim 1 , wherein the electrically conductive element is a non-conductive substrate positioned adjacent to conductive optically active sheeting.
4. The signage article of claim 1 , further comprising a first plug inset into the cutout and located adjacent to the RFID tag.
5. The signage article of claim 4 , wherein the first plug is positioned entirely within the cutout.
6. The signage article of claim 4 , wherein the first plug is non-conductive.
7. The signage article of claim 4 , further comprising a layer of tape attached to a major surface of the substrate such that the layer of tape holds the first plug and the RFID tag in the cutout.
8. The signage article of claim 4 , further comprising a second plug inset into the cutout, wherein the RFID tag is positioned between the first plug and the second plug.
9. The signage article of claim 1 , wherein the RFID tag is flush with a major surface of the substrate.
10. The signage article of claim 1 , wherein the RFID tag is in direct contact with the substrate.
11. The signage article of claim 1 , wherein the RFID tag includes a rectilinear antenna.
12. The signage article of claim 1 , wherein the RFID tag is a surface acoustic wave (SAW) RFID tag.
13. The signage article of claim 1 , wherein the RFID tag is removably attached to the substrate.
14. The signage article of claim 1 , wherein the RFID tag comprises an integrated circuit that stores information related to the signage article.
15. The signage article of claim 14 , wherein the integrated circuit stores the inspection history of the signage article.
16. The signage article of claim 1 , wherein the signage article comprises at least one of a traffic control material; a vehicle marking; a roadway marking; a retroreflective garment; an indoor/outdoor labeling product; a frangible security sticker; a product authentication material; a store display package; a document; an inventory labeling and control product; an identification tag; an identification label; an identification system; a license plate; or a road sign.
17. A method of forming an electrically conductive, RFID-enabled signage article, comprising:
selecting a location on an electrically conductive element;
forming a cutout in the electrically conductive element at the selected location; and
placing a radio frequency identification (RFID) tag into the cutout,
wherein the selecting a location on the electrically conductive element is based on a desired radiation pattern of the electrically conductive, RFID-enabled signage article that is formed when the RFID tag is placed into the cutout.
18. The method of claim 17 , wherein the selecting a location on an electrically conductive element involves choosing the location based on a desired read angle of the RFID tag.
19. A method, comprising:
forming a cutout having a cutout size and a cutout shape in an electrically conductive element having an element size and an element shape; and
placing a radio frequency identification (RFID) tag into the cutout to form an electrically conductive, RFID-enabled signage article.
20. The method of claim 19 , wherein selection of the cutout size is based on a desired radiation pattern.
21. The method of claim 19 , wherein selection of the element size is based on a desired radiation pattern.
22. The method of claim 19 , wherein selection the element shape is based on a desired radiation pattern.
23. The method of claim 19 , wherein selection of the cutout shape is based on a desired radiation pattern.