Ferrite core antenna array e.g. for external door grasp of motor vehicle, has elongated flattened ferrite core with coil arranged on it and which in cavity has grasp extending in longitudinal direction inside door handle

摘要

The antenna array (4) has an elongated flattened ferrite core (8) with a coil arranged on it and which in a cavity (3), a grasp extends in a longitudinal direction, inside a door handle (1). The coil and the connections are surrounded by a plastic coating (12). The ferrite core has several segments arranged one behind the other in a longitudinal direction (8A, 8B) and which can be arranged for the tuning of the antenna array in a variable distance. Only in one longitudinal direction (8A) is the coil segment carried and the remaining segments (8B) are surrounded by the plastic coating.