Nova Patents
EP1983604A2

Wireless communication device and method

Abstract

A wireless communication device coupled to a wave antenna that provides greater increased durability and impedance matching. The wave antenna may be in the form of a polygonal, elliptical curve and/or coil shape. The wireless communication device is coupled to the wave antenna to provide wireless communication. The wireless communication device and wave antenna may be placed on objects, goods, or other articles of manufacture that are subject to forces such that the wave antenna may be stretched or compressed during the manufacture and/or use of such object, good or article of manufacture. The wave antenna, because of its curved structure, is capable of stretching and compressing more easily than other structures, reducing the wireless communication device's susceptibility to damage or breakage that might render the wireless communication device coupled to the wave antenna unable to properly communicate information wirelessly.

EP1983604A2, drawing sheet 1
Sheet 1 of 34

Term

Term ended

Projected expiry passed 22 April 2023, 3.4 years ago.

  1. Priority
  2. Filed
  3. Published
  4. Projected expiry
  5. Today

39 claims: 12 independent, 27 dependent

  1. 1
    A wireless communication device, comprising:a RFID chip (10);and a wave antenna (17) having bent sections (21) and being polygonal-shaped, elliptical curve-shaped or coil-shaped, wherein the polygonal shape includes curvatures having three or more sides and said wave antenna (17) is coupled to said RFID chip (10), wherein further the wave antenna (17) is capable of stretching when subjected to force without being damaged and the sections (21) in the wave antenna (17) touch each other when the wave antenna (17) is not stretched.
  2. 4
    A device as claimed in any one of claims 1 to 3, wherein the amplitude of said at least one polygonal-shaped conductor (17A, 17B), elliptical curve-shaped conductor (17A, 17B) or coil-shaped conductor (17A, 17B) is the same over the entire length of said conductor (17A, 17B).
  3. 5
    A device as claimed in any one of claims 1 to 4, wherein the amplitude of said at least one polygonal-shaped, elliptical curve-shaped or coil-shaped conductor (17A, 17B) is different in at least two different portions (2 1 A, 21B, 21C, 2 1 D) of said conductor (17A, 17B).
  4. 6
    A device as claimed in any one of claims 1 to 5, wherein said at least one polygonal-shaped conductor (17), elliptical curve-shaped conductor (17) or coil-shaped conductor (17) is coated with a non-conductive material.
  5. 7
    A device as claimed in any one of claims 1 to 6, wherein a small change in stretching of the wave antenna (17) has a large effect on an operating frequency of the wave antenna (17).
  6. 8
    A device as claimed in anyone of claims 1 to 7, wherein said at least one polygonal-shaped conductor (17A, 17B), elliptical curve-shaped conductor (17A, 17B) or coil-shaped conductor (17A, 17B), is comprised of a first section (21A, 21B) having a first length to form a first polygonal-shaped, elliptical curve-shaped or coil-shaped wave antenna (17) designed to operate at a first operating frequency and a second section (21C, 21D) having a second length to form a second polygonal-shaped, elliptical curve-shaped or coil-shaped wave antenna (17) designed to operate at a second operating frequency:
  7. 14
    A device as claimed in any one of claims 1 to 13, further comprising a resonating ring (40) coupled to said polygonal-shaped, elliptical curve-shaped or coil-shaped wave antenna (17, 17A, 17B) wherein said wave antenna (17, 17A, 17B) operates at a first operating frequency and said resonating ring (40) forms a second antenna that operates at a second operating frequency.
  8. 17
    A device as claimed in any one of claims 14 to 16, wherein the conductors (17A, 17B) of the polygonal-shaped, elliptical curve-shaped or coil-shaped wave antenna (17) are looped around the resonating ring (40) at a first inductive turn (42A) and a second inductive turn (42B).
  9. 18
    A device as claimed in any one of claims 1 to 17, wherein said at least one conductor (17A, 17B) has a peak that is thicker than the other portions of said at least one conductor to reduce the susceptibility of breakage of said polygonal-shaped, elliptical curve-shaped or coil-shaped wave antenna (17).
  10. 19
    A device as claimed in any one of claims 1 to 18, wherein said at least one conductor (17A, 17B) is heated to reduce the stress in said at least one conductor (17A, 17B) to reduce the susceptibility of breakage of said polygonal-shaped, elliptical curve-shaped or coil-shaped wave antenna (17).
  11. 20
    A device as claimed in any one of claims 1 to 19, wherein said polygonal-shape is comprised from the group consisting of a square, a pentagon, a hexagon, a heptagon, an octagon, a nonagon, and a decagon.
  12. 35
    A method of manufacturing a polygonal-shaped, elliptical curve-shaped or coil-shaped wave antenna (17), comprising the steps of:passing a conducting foil (17) through a first cog (120A) and a second cog (1200B) each having a polygonal-shaped, elliptical curve-shaped or coil-shaped periphery and placed in a vertical plane with respect to each other wherein said polygonal-shaped, elliptical curve-shaped or coil-shaped periphery in each of said first cog (120A) and said second cog (120B) substantially interlock with each other as said first cog (120A) rotates clockwise and said second cog (120B) rotates counterclockwise;and placing alternating curves in said conducting foil (17) when said conducting foil (17) is passed through said first cog (120A) and said second cog.