Radio antenna arrangement located next to vehicle window panels

摘要

The antenna arrangement for a motor vehicle includes an exterior radio antenna (1) for radiating electromagnetic waves in a radio frequency broadcast range; a vehicle window pane (2) closing an opening provided in a metallic vehicle body (3) and a device for shielding the interior from the electromagnetic waves radiated by the exterior radio antenna (1). The device for shielding is a two-dimensional component (4) arranged on the window pane (2) and made of a conductive material substantially optically transparent but substantially opaque to the electromagnetic waves radiated by the exterior radio antenna (1) and a capacitive connection (11,12,13) for the electromagnetic waves in the radio broadcast frequency range between the two-dimensional component (4) and the metallic body (3). The two-dimensional component (4) has a sufficiently low surface resistance in the radio broadcast frequency range and the capacitive connection (11,12,13) has a sufficiently low impedance so that electric and magnetic fields radiated by the exterior radio antenna (1) are effectively prevented from penetrating into the interior of the motor vehicle.