Abstract: The invention relates to a roof antenna (1) designed for mounting on a vehicle roof (2) of a vehicle, wherein the roof antenna (1) comprises an antenna element (4) disposed on a base plate (3) and an antenna housing (5) for protecting the antenna element (4) from outside influences, wherein the antenna housing (5) encompasses the base plate (3) with the circulating bottom edge thereof. According to the invention, either the base plate (3) is formed from an organic material or plastic, at least in a region that is not sealed off from outside influences or the base plate (3) is formed by a core region (31) made of metal, at least in a region that is not sealed off from outside influences, wherein the core region (31) is coated with a non-metal material (30), at least in said region.

Abstract: Apparatus and method for producing a jacketed antenna, especially a mobile telephone antenna for motor vehicles, where the jacket is formed about antenna conductive parts in a mold. The mold having a centering pin for insertion in an antenna base body having a mating hole, and an antenna receiving portion attached to the base body so as to be aligned and centered in the mold by the centering pin to assure that the antenna conductive parts are completely encased in the jacketing material.

Abstract: A mobile antenna that repeatably can be attached and detached by rotation from motor vehicles. The antenna having a receiving portion electrically connected to a base body having a contact area for connecting to motor vehicles. The joined base body and receiving portion being encased in a jacket. The base body having grooves with flank surfaces also encased in the jacket; the grooves aligned in the lengthwise direction of the antenna so that the groove flank surfaces are essentially perpendicular to forces produced when the jacket is rotated for attachment and detachment of the antenna to or from the motor vehicle.

Abstract: A mobile antenna that repeatably can be attached and detached by rotation from motor vehicles. The antenna having a receiving portion electrically connected to a base body having a contact area for connecting to motor vehicles. The joined base body and receiving portion being encased in a jacket. The base body having grooves with flank surfaces also encased in the jacket; the grooves aligned in the lengthwise direction of the antenna so that the groove flank surfaces are essentially perpendicular to forces produced when the jacket is rotated for attachment and detachment of the antenna to or from the motor vehicle.

Abstract: Apparatus and method for producing a jacketed antenna, especially a mobile telephone antenna for motor vehicles, where the jacket is formed about antenna conductive parts in a mold. The mold having a centering pin for insertion in an antenna base body having a mating hole, and an antenna receiving portion attached to the base body so as to be aligned and centered in the mold by the centering pin to assure that the antenna conductive parts are completely encased in the jacketing material.