Various mobile communication terminals, apparatuses, and methods having antenna improvements are discussed. An apparatus is described which includes an outer front side having a display disposed therein; an outer rear side a conductive part and a non-conductive part; a battery disposed between the outer front side and the outer rear side; and an antenna including a radiation unit capable of receiving a signal, at least a portion of the radiation unit being disposed between the outer front side and the non-conductive part of the outer rear side, a feeding unit which electrically connects the radiation unit to a circuit board, and a ground part which electrically connects the radiation unit to the conductive part of the outer rear side.