Patent ID: 8269688

Claim:
Apparatus for screening the magnetic field ( 1 ) of an RFID transponder ( 2 ) in relation to a substrate, which comprises, in a first area section (a), at least one flat antenna structure ( 8 ) which comprises conductor tracks for conducting current in a direction of current flow and has an application-specific extent, wherein the apparatus comprises a second area section(b) or carrier ( 4 ) to which strips ( 5 ) of a highly permeable screening material are applied such that they are oriented in a predetermined manner with respect to one another, wherein the second area section (b) is arranged parallel to the first area section (a), characterised in that the highly permeable screening material has anisotropic permeability, wherein increased permeability is provided in the direction of current flow in the direction of the conductor tracks of important sections of the antenna structure ( 8 ).