range substantially smaller requirements are to be met in the direct current power supply than in prior art antennas of this kind consequently the antenna of this invention saves on expenditures for the filtering devices the input of a separate amplifying stage 13 for very short wave length signals in the antenna of this invention is connected either to the connection point 19 on one of the bus bars of the set of heating elements 24 fig1 or the very short wave signal can be also coupled to the flat antenna element for l m s wave reception fig4 a 4b the common ground terminal 22 of the antenna amplifier 23 is to be connected to the conductive boundary of the rear window in close proximity to the connection point 19 or 4 so as to obtain well defined impedances and quality in the ultra short wave circuit in coupling the ultra short wave amplifying stage 13 to the set of heating elements it is of advantage when the heating elements due to the fact that they occupy a relatively large surface be strongly coupled to the ultra short wave field moreover the input of the amplifier stage 13 should have a relatively low broad band impedance so as to ensure a loss free transformation the properties of the amplifier stage 4 contribute to better results in a high quality reception referring to fig5 the bus bar 24 is provided at one end thereof with a connection point 19 for the very short wave signal and at the opposite end thereof with a connection point for a direct current power supply to the heating wires 2 due to the low impedance.