A motor-vehicle roof antenna has a base plate adapted to be fitted to the vehicle roof, a sending/receiving unit mounted on the base plate, and a mounting formation for securing the base plate to the roof. The base plate is stamped sheet metal....http://www.google.es/patents/US7304614?utm_source=gb-gplus-sharePatente US7304614 - Motor-vehicle roof antenna with sheet-metal base plate
Motor-vehicle roof antenna with sheet-metal base plate
