A mobile terminal comprising: a terminal body comprising a case (101, 102) and a circuit board within the case for processing radio signals; and a loop antenna using a portion of the case (101, 102) formed along a lateral surface of the terminal body, characterized in that the antenna includes: a first member being part of a case forming an external appearance of the mobile terminal and disposed to cover a first surface of the circuit board, the first member including a metal material; a power feed connector for facilitating a power feed connection between the first member and the circuit board; and a ground connector for facilitating a ground connection between the first member and the circuit board, the mobile terminal further comprises: a second member being part of the case forming an external appearance of the mobile terminal, the second member including a conductive metal material; a slit located between the first member and the second member and separating the first member and the second member, wherein the slit blocks a current flow from the first member to the second member, and wherein the slit is formed at a first end of the first member; and a further slit located between the first member and the second member, wherein the further slit is formed at a second end of the first member, and wherein the further slit blocks a current flow from the first member to the second member, wherein the slit and the further slit are located at a top or bottom end of the mobile terminal. a terminal body comprising a case (101, 102) and a circuit board within the case for processing radio signals; and a loop antenna using a portion of the case (101, 102) formed along a lateral surface of the terminal body, characterized in that the antenna includes: a first member being part of a case forming an external appearance of the mobile terminal and disposed to cover a first surface of the circuit board, the first member including a metal material; a power feed connector for facilitating a power feed connection between the first member and the circuit board; and a ground connector for facilitating a ground connection between the first member and the circuit board, a first member being part of a case forming an external appearance of the mobile terminal and disposed to cover a first surface of the circuit board, the first member including a metal material; a power feed connector for facilitating a power feed connection between the first member and the circuit board; and a ground connector for facilitating a ground connection between the first member and the circuit board, the mobile terminal further comprises: a second member being part of the case forming an external appearance of the mobile terminal, the second member including a conductive metal material; a slit located between the first member and the second member and separating the first member and the second member, wherein the slit blocks a current flow from the first member to the second member, and wherein the slit is formed at a first end of the first member; and a further slit located between the first member and the second member, wherein the further slit is formed at a second end of the first member, and wherein the further slit blocks a current flow from the first member to the second member, a second member being part of the case forming an external appearance of the mobile terminal, the second member including a conductive metal material; a slit located between the first member and the second member and separating the first member and the second member, wherein the slit blocks a current flow from the first member to the second member, and wherein the slit is formed at a first end of the first member; and a further slit located between the first member and the second member, wherein the further slit is formed at a second end of the first member, and wherein the further slit blocks a current flow from the first member to the second member, wherein the slit and the further slit are located at a top or bottom end of the mobile terminal.