Antenna apparatus for mobile terminal

摘要

An antenna apparatus for a mobile terminal is provided having a hula hoop antenna secured to a housing of the mobile terminal; a conductive line coupling the hula hoop antenna to a transceiver of the mobile terminal; a conductive fixing member having a through hole and contacting a portion of the hula hoop antenna; a cylindrical fixing member inserted into the through hole of the conductive fixing member; and a rod antenna extendable and retractable from and into the housing. The rod antenna is movable along a central axis of the cylindrical fixing member. The hula hoop antenna has a first end connected to a variable capacitor on a printed circuit board of the mobile terminal and a second end connected to a ground plate of the printed circuit board.