RFID foil or film antennas
AssigneeMoore North America, Inc.
InventorsTheodore F. Cyman, Dennis Nachtwey, Adele C. Shipston
Life of this patent
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Abstract
A radio frequency antenna-containing element with good flexibility and bend properties is produced utilizing a flexible substrate, an adhesive, and a conductive foil or film. The adhesive and conductive foil or film are applied to the substrate so that they have the configuration of an RF antenna. This facilitates a method of making such an element in a high speed and in a simple manner that will function well, can be aesthetic or convey information as well as being functional, and with other optimum properties.
Claims19
A radio frequency antenna-containing element comprising:
- a flexible substrate having a top surface;
- adhesive in a radio frequency antenna configuration operatively connected to said top surface;
- a conductive foil or film operatively connected to said adhesive so as to have substantially the same configuration thereof, and on the opposite side of said adhesive from said top surface;
- and
- said conductive foil or film having a radio frequency antenna configuration and said substrate with said adhesive and foil or film being flexible and bendable without destroying said substrate or antenna configuration of said foil or film.
A method of making a radio frequency antenna-containing element comprising:
- (a) applying a pressure sensitive adhesive substantially directly to the top surface of a flexible substrate so that the adhesive is in the form of a pattern of a radio frequency antenna;
- (b) laminating a conductive foil or film to the adhesive on the top face of the substrate;
- and
- (c) removing the conductive foil or film from the top face of the substrate except for where the conductive foil or film adheres to the adhesive, to produce a flexible substrate having a flexible radio frequency antenna adhered thereto.
A method of making a radio frequency antenna-containing element comprising:
- (a) printing a toner on the top surface of a flexible substrate so that the toner is in the form of a pattern of a radio frequency antenna;
- (b) heating the toner to make it tacky;
- (c) while the toner is tacky, applying a laminate of a conductive foil or film and adhesive onto the toner while heating and applying pressure, so that the adhesive and foil stick to the toner where they engage;
- and
- (d) removing the laminate from the substrate except for where the conductive foil or film and adhesive adhere to the toner, to produce a flexible substrate having a flexible radio frequency antenna operatively adhered thereto.
Dependencies are inferred from the claim text.