Radar arrangement for road condition detection in a motor vehicle

The invention relates to an automotive radar device with a transceiver antenna arrangement mounted in the upper area of the vehicle to detect road conditions ahead. The inventive arrangement illuminates a front area of the lane in which the vehicle is travelling according to an antenna diagram which is closely bundled both horizontally and vertically. The echo signals are selectively detected according to distance and evaluated so that information on the state of the appropriate road surface can be provided.