Antenna-retaining device for a motor vehicle, and motor vehicle having an antenna-retaining device

An antenna-retaining device of a motor vehicle for retaining a monopole antenna in an emitting position, comprising:

• an antenna carrier plate comprising a stiffening rib to reduce vibrations of the antenna carrier plate;
• a motor-vehicle coupling device configured to fasten the antenna carrier plate to a vehicle body, wherein:
• the vehicle body is distant from the monopole antenna retained in the emitting position;
• and
• the antenna carrier plate is electrically conductive and forms an electrical counterpoise to the monopole antenna;
• and
• a counterpoise extension comprising a slot and an electrically conductive tab element, wherein:
• the counterpoise extension is interconnected with the antenna carrier plate;
• the counterpoise extension and the monopole antenna are arranged on opposite sides of the antenna carrier plate;
• and
• an angle between a surface of the counterpoise extension and a planar emitting region or a longitudinal axis of the monopole antenna is in a range between 90° to 180°.

A system of a motor vehicle, comprising:

• a monopole antenna;
• and
• an antenna-retaining device configured to retain the monopole antenna in an emitting position, comprising:
• an antenna carrier plate comprising a stiffening rib to reduce vibrations of the antenna carrier plate;
• a motor-vehicle coupling device configured to fasten the antenna carrier plate to a vehicle body, wherein:
• the vehicle body is distant from the monopole antenna retained in the emitting position;
• and
• the antenna carrier plate is electrically conductive and forms an electrical counterpoise to the monopole antenna;
• and
• a counterpoise extension comprising a slot and an electrically conductive tab element, wherein:
• the counterpoise extension is interconnected with the antenna carrier plate;
• the counterpoise extension and the monopole antenna are arranged on opposite sides of the antenna carrier plate;
• and
• an angle between a surface of the counterpoise extension and a planar emitting region or a longitudinal axis of the monopole antenna is in a range between 90° to 180°.

A motor vehicle, comprising:

• a monopole antenna;
• and
• an antenna-retaining device configured to retain the monopole antenna in an emitting position, comprising:
• an antenna carrier plate comprising a stiffening rib to reduce vibrations of the antenna carrier plate;
• a motor-vehicle coupling device for fastening the antenna carrier plate to a vehicle body, wherein:
• the vehicle body is distant from the monopole antenna retained in the emitting position;
• and
• the antenna carrier plate is electrically conductive and forms an electrical counterpoise to the monopole antenna;
• and
• a counterpoise extension comprising a slot and an electrically conductive tab element, wherein:
• the counterpoise extension is interconnected with the antenna carrier plate;
• the counterpoise extension and the monopole antenna are arranged on opposite sides of the antenna carrier plate;
• and
• an angle between a surface of the counterpoise extension and a planar emitting region or a longitudinal axis of the monopole antenna is in a range between 90° to 180°.