Patent ID: 7348927

Claim:
An antenna screen printed on a window located at the rear of a saloon type motor vehicle and comprising a de-icing network ( 2 ) consisting of two collectors ( 3 , 4 ) interlinked by a number of horizontal conductive lines ( 5 ), the antenna providing four radio reception functions, namely AM, FM 1 , FM 2 and REMOTE KEYLESS ENTRY, and comprising: an AM antenna with an aerial made up of at least one horizontal conductive line ( 15 ) located in one of the top and bottom parts of the rear window and not included in the de-icing network ( 2 ), the aerial of the AM antenna being associated with a first electronic circuit located in an electronic box ( 11 ) and providing a high impedance matching of said aerial to a radio receiver; FM 1 and FM 2 antennas having a common aerial made up of the de-icing network ( 2 ) and vertical lines ( 9 , 10 ) and having different signal collector points ( 12 , 13 ) that are used to obtain directional signals respectively in first and second directions in a plane of zero height, each antenna having a circuit located in the electronic box ( 11 ) and providing impedance matching of their aerial to the characteristic impedance of the coaxial cable outgoing from the electronic box, and a REMOTE KEYLESS ENTRY antenna comprising an aerial and a circuit located in the electronic box ( 11 ) and providing impedance matching of its aerial to the impedance of the coaxial cable outgoing from the box, characterized in that: the vertical lines ( 9 , 10 ) comprise two pairs of vertical lines disposed symmetrically relative to the median vertical longitudinal plane of the vehicle; the signals supplied by the FM 1 and FM 2 antennas are respectively directional in the lengthwise direction of the vehicle and in the widthwise direction of the vehicle; the aerial of the REMOTE KEYLESS ENTRY antenna is the aerial of the AM antenna the signal collector point ( 12 ) of the aerial of the FM 1 antenna is located on a screen printed line ( 22 ) located in the bottom part of the rear window, alongside the electronic box ( 11 ); the signal collector point ( 13 ) of the aerial of the FM 2 antenna is located at the mid-point of the collector ( 4 ), disposed on the side of the electronic box, of the de-icing network ( 2 ); and the signal collector points ( 12 , 13 ) are linked to the electronic box by connecting wires ( 19 , 14 ).