Transmitting antenna array which is used to emit a long-wave wake-up signal for an id - transmitter of a keyless access system force vehicle

摘要

A transmitting antenna array which is used to emit a long-wave wake-up signal for an id - transmitter of a keyless motor vehicle system. In the interior of a motor vehicle component (1) is an induction coil (2) with at least one winding (4) and a core surrounded by the winding (3) is arranged. The core (3) has the shape of a flat strip, and consists of a plurality of superimposed layers, the a crystalline or amorphous, soft magnetic metal alloy of high permeability contain. Each of the metal layers has a thickness of between 15 μm and 100 μm and the layers are arranged one above the other in such a way that a current flow from a metal layer is made more difficult to an adjacent.