ANTENNA SYSTEM WHICH SERVICES THE SATELLITE DMB AND GROUND DMB BROADCAST AND A MOBILE ELECTRIC DEVICE WITH THE SAME

摘要

PURPOSE: An antenna system and a mobile electric device with the same are provided to service the satellite DMB and ground DMB broadcast as needs of a user.;CONSTITUTION: A first to fourth pilers(111,112,113,114) makes phase difference of figure 90 along the surface of a cylindrical structure(115). A first antenna(110) is combined with the upper structure of the cylindrical structure and connects the first and third pilers, and the second and fourth pilers. The antenna comprises a connection part(116) having an opening on center. A second antenna(120) extends from the inside of the cylindrical structure and to outside through the opening. A printed circuit board(130) forms a circuit part for the impedance matching about one or more signal of the first signal and the second signal.;COPYRIGHT KIPO 2010