Integrated package and RFID antenna

• US 20010054755A1
• Filed: 04/13/2001
• Published: 12/27/2001
• Est. Priority Date: 04/13/2000
• Status: Abandoned Application

• Current Assignee: International Paper ZAO (Sylvamo Corp.)
• Original Assignee: International Paper ZAO (Sylvamo Corp.)
• Inventors: Kirkham, Richard
• Application Number:
  US09/835,095
• Publication Number:
  US 20010054755A1
• Time in Patent Office: Days
• US Class Current: 257/678
• CPC Class Codes: B65D 2203/10 Transponders
• CPC Class Codes: B65D 25/205 Means for the attachment of labels, cards, coupons or the like; cards or coupons for the other types of rigid or semi-rigid containers B65D25/36 takes precedence
• CPC Class Codes: G01V 15/00 Tags attached to, or associated with, an object, in order to enable detection of the object record carriers for use with machines having a detectable tag or marker G06K19/00
• CPC Class Codes: G06K 19/0723 the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
• CPC Class Codes: G06K 19/0726 the arrangement including a circuit for tuning the resonance frequency of an antenna on the record carrier
• CPC Class Codes: G06K 19/07749 the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
• CPC Class Codes: G06K 19/07756 the connection being non-galvanic, e.g. capacitive
• CPC Class Codes: G06K 19/0776 the adhering arrangement being a layer of adhesive, so that the record carrier can function as a sticker
• CPC Class Codes: G06K 19/07771 the record carrier comprising means for minimising adverse effects on the data communication capability of the record carrier, e.g. minimising Eddy currents induced in a proximate metal or otherwise electromagnetically interfering object
• CPC Class Codes: G06K 7/10178 including auxiliary means for focusing, repeating or boosting the electromagnetic interrogation field comparable booster antennas integrated on the record carrier itself G06K19/07794

Abstract

The present invention is an RFID tag system for a package comprising an RFID tag having an antenna. The RFID tag is coupled to the package. An RFID antenna, is capacitively coupled to a conductive package or content material wherein said conductive package or content material forms a part of an RF antenna design.

Claims

1. An integrated antenna RFID tag comprising:

a package containing a product, at least one of said package and product having an RF conductive element;

an RFID tag having an antenna element, said RFID tag being coupled to the package; and

,

means for coupling said antenna element to said RF conductive element;

wherein said RF conductive element and said antenna element are integrally combined to function as an RF antenna.

2. The tag of

claim 1

wherein said package has said RF conductive element.

3. The tag of

claim 2

wherein said RF conductive element is a metallic layer.

4. The tag of

claim 2

wherein said RF conductive element is a metallic paint applied to said package.

5. The tag of

claim 1

wherein said RF conductive element is selected from the group consisting of conductive resins, conductive inks, conductive polymers and metals.

6. The tag of

claim 1

wherein said coupling means is inductive.

7. The tag of

claim 1

wherein said coupling means is capacitive.

8. The tag of

claim 1

wherein said coupling means is electromagnetic.

9. The tag of

claim 1

wherein said coupling means is electrical.

10. The tag of

claim 1

wherein said product has said RF conductive element.

11. The tag of

claim 10

wherein said RF conductive element is a liquid.

12. The tag of

claim 11

wherein said liquid is subjected to excitation.

13. The tag of

claim 11

wherein said liquid includes water.

14. The tag of

claim 1

wherein said package has a shape selected from the group consisting of cylindrical, rectangular, triangular, pyramidal and spherical.

15. The tag of

claim 7

wherein said antenna element is a metallic label and said coupling means is an adhesive material adapted to adhere said label to said package.

16. A method for producing an integrated antenna RFID tag comprising the steps of:

providing a product;

determining RF conductive properties of said product;

selecting a package adapted to contain said product, wherein said selection includes determining RF conductive properties of said product in combination with said package;

providing an RFID circuit to be coupled to said package and product;

designing an antenna element to connect to said RFID circuit utilizing said RF conductive properties; and

establishing an RF circuit between said antenna element, said RFID circuit, said package and product.

17. The method of

claim 16

wherein said selecting step includes selecting a package material from the group consisting of conductive resins, conductive inks, conductive polymers and metals of varying conductivity.

18. The method of

claim 17

wherein said designing step includes forming a coupling between said antenna element and said package.

19. The method of

claim 18

wherein said coupling is selected from the group consisting of inductive, capacitive and electromagnetic couplings.

20. The method of

claim 16

wherein said selecting step includes selecting a package shaped from the group consisting of cylindrical, rectangular, triangular and spherical shapes.