VEHICLE BROADCASTING ANTENNA FOR PREVENTING SIGNAL INTERFERENCE AND IMPROVING RUMINATION EFFICIENCY AND A VEHICLE SHARK FIN ANTENNA DEVICE THEREOF CAPABLE OF SATISFYING THE MINIATURIZATION OF AN ANTENNA IN A LIMITED SPACE

摘要

PURPOSE: A vehicle broadcasting antenna for preventing signal interference and improving rumination efficiency and a vehicle shark fin antenna device thereof are provided to easily control the rumination efficiency in a specific frequency band by controlling thickness with an extended ground connection unit electrically connected with a ground connection surface.;CONSTITUTION: A helical emitting unit(110) includes a plurality of helical emitters(101,102). The helical emitters are electrically connected with a ground connection surface and a feed circuit of a main board(1). An extended emitting unit(120) includes a plurality of top loading units. The top loading units are electrically connected with ends of the helical emitters. The top loading units include a plurality of band-stop filters(10) and conductive patterns(31).;COPYRIGHT KIPO 2013