Possesses wide band FM reception the back light antenna null for the AM/FM vehicle radio

摘要

PROBLEM TO BE SOLVED: To provide a cheap system including an antenna responding to a wide band width and a matching network capable of being built-in many kinds of vehicles and including no choke on the other hand. ;SOLUTION: An antenna grid 18 is electrically separated from the heater grid 14 of a defogger and includes plural horizontal antenna elements 44 at regular intervals, which are extended across the nearly entire width of the rear window 12 of the vehicle. Two vertical tip part bus bars 46 and 48 and two vertical central bars 50 and 52 connect the antenna elements. An FM turning stub 60 is connected with the antenna elements for proper FM reception corresponding to the type of a vehicle body.;COPYRIGHT: (C)1997,JPO