A mobile communication terminal (200; 500), comprising: a wireless communication unit configured to communicate with at least one other terminal; a body (201; 501) including a metal frame having a specified length and a width, the metal frame being included in a plane and configured to form an exterior of the body; a first ground formed on the body, an antenna (230; 330; 430) disposed inside the body; and a power feeding member formed on a circuit board in the body and configured to supply RF signals to the antenna; wherein the antenna (230; 330; 430) includes: a shorting arm (231; 331; 431) including at least one linear section, the at least one linear section being parallel to a linear dimension of the metal frame, and the shorting arm (231; 331; 431) directly and electrically connected to the metal frame at a first location offset from the middle of an edge of the metal frame and a feeding arm (232; 332; 432) including at least one linear section, the at least one linear section of the feeding arm being parallel to the at least one linear section of the shorting arm (231; 331; 431), and electrically connected to the power feeding member at a second location offset from the middle of the at least one linear section of the feeding arm (232; 332; 432), characterized in that the metal frame is physically and electrically separated from the first ground, the shorting arm (231; 331; 431) and the feeding arm (232; 332; 432) are disposed in a first region that, when projected on the plane including the metal frame, does not overlap with a projection of a region including the first ground onto the same plane, and a floated metal portion having a conductivity electrically floated from the first ground is provided in the first region. a wireless communication unit configured to communicate with at least one other terminal; a body (201; 501) including a metal frame having a specified length and a width, the metal frame being included in a plane and configured to form an exterior of the body; a first ground formed on the body, an antenna (230; 330; 430) disposed inside the body; and a power feeding member formed on a circuit board in the body and configured to supply RF signals to the antenna; wherein the antenna (230; 330; 430) includes: a shorting arm (231; 331; 431) including at least one linear section, the at least one linear section being parallel to a linear dimension of the metal frame, and the shorting arm (231; 331; 431) directly and electrically connected to the metal frame at a first location offset from the middle of an edge of the metal frame and a feeding arm (232; 332; 432) including at least one linear section, the at least one linear section of the feeding arm being parallel to the at least one linear section of the shorting arm (231; 331; 431), and electrically connected to the power feeding member at a second location offset from the middle of the at least one linear section of the feeding arm (232; 332; 432), characterized in that the metal frame is physically and electrically separated from the first ground, the shorting arm (231; 331; 431) and the feeding arm (232; 332; 432) are disposed in a first region that, when projected on the plane including the metal frame, does not overlap with a projection of a region including the first ground onto the same plane, and a floated metal portion having a conductivity electrically floated from the first ground is provided in the first region. a shorting arm (231; 331; 431) including at least one linear section, the at least one linear section being parallel to a linear dimension of the metal frame, and the shorting arm (231; 331; 431) directly and electrically connected to the metal frame at a first location offset from the middle of an edge of the metal frame and a feeding arm (232; 332; 432) including at least one linear section, the at least one linear section of the feeding arm being parallel to the at least one linear section of the shorting arm (231; 331; 431), and electrically connected to the power feeding member at a second location offset from the middle of the at least one linear section of the feeding arm (232; 332; 432), characterized in that the metal frame is physically and electrically separated from the first ground, the shorting arm (231; 331; 431) and the feeding arm (232; 332; 432) are disposed in a first region that, when projected on the plane including the metal frame, does not overlap with a projection of a region including the first ground onto the same plane, and a floated metal portion having a conductivity electrically floated from the first ground is provided in the first region.