Cable
In order to improve a cable, comprising an inner cable body, in which at least one conductor strand of an optical and/or electrical conductor runs in the longitudinal direction of the cable, an outer cable sheath, enclosing the inner cable body and lying between an outer sheath surface of the cable and the inner cable body, and at least one information carrier unit, disposed within the outer sheath surface of the cable such that the cable also comprises a shielding, the invention proposes that the information carrier unit having an antenna unit lying in an antenna surface running approximately parallel to the longitudinal direction of the cable, by the antenna surface running at a distance from an electrical shielding of the cable and by providing, between the antenna surface and the shielding, a spacing layer, in which the electromagnetic field that couples to the antenna unit and passes through the antenna surface can extend between the antenna unit and the shielding.
1. Cable, comprising:
an inner cable body, in which at least one conductor strand of an optical and/or electrical conductor runs in a longitudinal direction of the cable,
an outer cable sheath, enclosing the inner cable body and lying between an outer sheath surface of the cable and the inner cable body, and
at least one information carrier unit, disposed within the outer sheath surface of the cable,
the information carrier unit having an antenna unit lying in an antenna surface that runs approximately parallel to the longitudinal direction of the cable,
the antenna surface running at a distance from an electrical shielding of the cable, and
an electrically non-conductive spacing layer provided between the antenna surface and the shielding, in which an electromagnetic field that couples to the antenna unit and passes through the antenna surface can extend between the antenna unit and the shielding.
2. Cable according to claim 1 , wherein the spacing layer is formed at least partially such that it concentrates the electromagnetic field that couples to the antenna unit.
3. Cable according to claim 2 , wherein a magnetic-field-concentrating layer is disposed in the spacing layer.
4. Cable according to claim 3 , wherein the magnetic-field-concentrating layer comprises magnetically conductive particles.
5. Cable according to claim 4 , wherein the magnetically conductive particles have a particle size in a range from approximately 1 μm to approximately 50 μm.
6. Cable according to claim 4 , wherein the magnetically conductive particles are embedded in an embedding material.
7. Cable according to claim 6 , wherein the embedding material electrically insulates the magnetically conductive particles from one another.
8. Cable according to claim 6 , wherein the embedding material is a plastic material.
9. Cable according to claim 2 , wherein the magnetic-field-concentrating layer faces the shielding with a side that faces away from the antenna unit.
10. Cable according to claim 2 , wherein the magnetic-field-concentrating layer extends in an area of extent running approximately parallel to the antenna surface.
11. Cable according to claim 10 , wherein the magnetic-field-concentrating layer has, in the area of extent, an extent which corresponds at least to an extent of the antenna unit in the antenna surface.
12. Cable according to claim 11 , wherein the magnetic-field-concentrating layer has, in the area of extent, an extent which goes beyond the extent of the antenna unit in the antenna surface.
13. Cable according to claim 2 , wherein an intermediate layer is disposed between the magnetic-field-concentrating layer and the antenna unit.
14. Cable according to claim 13 , wherein the intermediate layer is of a magnetically inert material.
15. Cable according to claim 1 , wherein the antenna unit is disposed on a base.
16. Cable according to claim 15 , wherein the base is produced from a magnetically inert material.
17. Cable according to claim 15 , wherein the base forms an intermediate layer between the antenna unit and the magnetic-field-concentrating layer.
18. Cable, comprising:
an inner cable body, in which at least one conductor strand of an optical and/or electrical conductor runs in a longitudinal direction of the cable,
an outer cable sheath, enclosing the inner cable body and lying between an outer sheath surface of the cable and the inner cable body, and
at least one information carrier unit, disposed within the outer sheath surface of the cable,
the information carrier unit having an antenna unit lying in an antenna surface that runs approximately parallel to the longitudinal direction of the cable,
the antenna surface running at a distance from an electrical shielding of the cable,
an electrically non-conductive spacing layer provided between the antenna surface and the shielding, in which an electromagnetic field that couples to the antenna unit and passes through the antenna surface can extend between the antenna unit and the shielding, and
a magnetic-field-concentrating layer,
wherein the antenna unit is disposed on a carrier strand and the magnetic-field-concentrating layer is disposed on the carrier strand.
19. Cable according to claim 18 , wherein the magnetic-field-concentrating layer is disposed on a side of the carrier strand that faces the antenna unit.
20. Cable according to claim 1 , wherein the spacing layer is at least partly formed by an intermediate sheath lying between the shielding and the outer cable sheath.
21. Cable according to claim 20 , wherein the intermediate sheath comprises a magnetic-field-concentrating layer.
22. Cable according to claim 21 , wherein magnetically conductive particles are disposed on the intermediate sheath.
23. Cable according to claim 21 , wherein magnetically conductive particles are embedded in a surface in the intermediate sheath.
24. Cable according to claim 1 , wherein the antenna unit is disposed on an intermediate sheath lying between the shielding and an outer cable sheath.