GLASS ANTENNA SYSTEM FOR VEHICLE

摘要

PURPOSE: To suppress radio waves leaked from an antenna through lead wires for heating to a car body and also to improve the radio wave receiving sensitivity of very short waves especially such as FM radio broadcasting waves. CONSTITUTION: Plural lead wires 3 for heating and bus bars 41 -43 connected at both ends are provided on rear window glass 1 for vehicle, antenna wires 2 provided at the upper margin part of the lead wires 3 for heating and equipped with horizontal wires 3 adjacent to the surfaces of lead wires 3 for heating at the highest part at least are provided, and a DC power source 5 is connected through a choke coil 6 to the bus bars 41 and 42 . Then, a pair of high frequency coils 71 and 72 equipped with inductances over the range from 2μH to 10μH are inserted between the choke coil 5 and the bus bars 41 and 42 .