Textile material with antenna components of an HF transponder

• US 7,958,713 B2
• Filed: 01/15/2005
• Issued: 06/14/2011
• Est. Priority Date: 01/30/2004
• Status: Active Grant

• Current Assignee: Astra Gesellschaft Fur Asset Management mbH & Company KG
• Original Assignee: Astra Gesellschaft Fur Asset Management mbH & Company KG
• Inventors: Stobbe, Anatoli
• Primary Examiner(s): Hurley; Shaun R
• Application Number:
  US10/587,581
• Publication Number:
  US 20070139201A1
• Time in Patent Office: 2,341 Days
• Field of Search: 572/10, 343/897
• US Class Current: 57/210
• CPC Class Codes: G06K 19/027 the material being suitable for use as a textile, e.g. woven-based RFID-like labels designed for attachment to laundry items markings attached to laundry items in general D06F93/00
• CPC Class Codes: H01Q 1/2225 used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
• CPC Class Codes: H01Q 1/273 Adaptation for carrying or wearing by persons or animals
• CPC Class Codes: H01Q 1/44 using equipment having another main function to serve additionally as an antenna , e.g. means for giving an antenna an aesthetic aspectH01Q1/27 - H01Q1/34 take precedence
• CPC Class Codes: H01Q 9/16 with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole H01Q9/44 takes precedence
• CPC Class Codes: H01Q 9/28 Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines waveguide horns or mouths H01Q13/00; slot antennas H01Q13/00

Abstract

A textile material with antenna components for an HF transponder is disclosed, which may be operated by connection of a circuit module to the antenna components, adjusted, or which may be adjusted to a working frequency. The antenna components comprise electrically-conducting components of the textile material itself, which may be formed as an E-field antenna, using the geometry thereof to match a working frequency in the UHF or microwave range, or by means of interruptions to, or extension of a conducting length.

Claims

1. A textile material with antenna components of an HF transponder operated by connection of a circuit module to the antenna components which are tuned to a working frequency, wherein the antenna components consist of electrically conductive components of the textile material itself which are formed as an E-field antenna, using the geometry thereof to match a working frequency in the UHF or microwave range, or by interruption or extension of a conductive section, wherein the antenna components are arranged with mutual spacing between the antenna components or are arranged in groups of antenna components with mutual spacing between the antenna components in each group.

2. The textile material according to claim 1, wherein the antenna components form at least one symmetrical λ

/2 dipole or at least one λ

/4 groundplane comprising a λ

/4 antenna and a counterpoise, wherein λ

corresponds to the wavelength of the working frequency.

3. The textile material according to claim 1, wherein the electrically conductive components of the textile material are electrically conducting thread structures processed mechanically within a normal production process for the textile industry.

4. The textile material according to claim 3, wherein the electrically conductive thread structure is a metal-coated plastic thread, a plastic thread wound with metal wire, a plastic thread wound with a metal stranded wire, a plastic thread with an integral metal wire, a plastic thread with an integral metal stranded wire or a graphite thread.

5. The textile material according to claim 4, wherein the electrically conductive thread structure comprises continuously conducting threads.

6. The textile material according to claim 5, wherein adjacent threads are separated when connecting a circuit module.

7. The textile material according to claim 4, wherein the electrically conductive thread structure comprises partially conducting threads between connection points and antenna ends.

8. The textile material according to claim 4, wherein the threads come to the surface of the textile material at outlet points which correspond to the position of connection points and antenna ends.

9. The textile material according to claim 8, wherein the outlet points have a spacing of λ

/4 of the wavelength of the working frequency.

10. The textile material according to claim 1, wherein antenna components comprise at least one connection point for connection to antenna connections of the circuit module by crimp connections, welded connections, soldered connections or adhesive connections using conductive adhesive.

11. The textile material according to claim 10, wherein adhesive surfaces of adhesive compounds are UV-permeable and the conductive adhesive is UV curable.

12. The textile material according to claim 1, wherein the circuit module itself and its antenna connections are enclosed by a potting compound and the potting compound is at the same time connected to the region of the textile material adjacent to the circuit module for mechanical fixing of the circuit module and/or increasing the security against tampering.