A mobile terminal comprising: a circuit board; an antenna formed of a conductive loop for transmitting and receiving radio signals; a case having two long lateral surfaces and two short lateral surfaces which are forming an appearance of the mobile terminal and the case comprising a metal material; wherein the case comprises: a first member being part of one of the two short lateral surfaces of the case; a second member; wherein the first member and the second member are disposed to cover a lateral surface of the circuit board; a first slit portion located at a first end of the first member; a second slit portion located at a second end, the second end being opposite to the first end of the first member, wherein the first slit portion and the second slit portion are located at the one of the two short lateral surfaces of the case; wherein the antenna comprises: the first member, wherein the first member forms a radiator of the antenna; a power feed connector for electrically connecting the first member with the circuit board; and a ground connector for electrically ground-connecting the first member with the circuit board, such that the power feed connector, the first member, and the ground connector form the conductive loop for radiating the radio signals, wherein the first slit portion is formed between the first end of the first member and a first end of the second member and the second slit portion is formed between the second end of the first member and a second end of the second member. a circuit board; an antenna formed of a conductive loop for transmitting and receiving radio signals; a case having two long lateral surfaces and two short lateral surfaces which are forming an appearance of the mobile terminal and the case comprising a metal material; wherein the case comprises: a first member being part of one of the two short lateral surfaces of the case; a second member; wherein the first member and the second member are disposed to cover a lateral surface of the circuit board; a first slit portion located at a first end of the first member; a second slit portion located at a second end, the second end being opposite to the first end of the first member, wherein the first slit portion and the second slit portion are located at the one of the two short lateral surfaces of the case; a first member being part of one of the two short lateral surfaces of the case; a second member; wherein the first member and the second member are disposed to cover a lateral surface of the circuit board; a first slit portion located at a first end of the first member; a second slit portion located at a second end, the second end being opposite to the first end of the first member, wherein the first slit portion and the second slit portion are located at the one of the two short lateral surfaces of the case; wherein the antenna comprises: the first member, wherein the first member forms a radiator of the antenna; a power feed connector for electrically connecting the first member with the circuit board; and a ground connector for electrically ground-connecting the first member with the circuit board, such that the power feed connector, the first member, and the ground connector form the conductive loop for radiating the radio signals, wherein the first slit portion is formed between the first end of the first member and a first end of the second member and the second slit portion is formed between the second end of the first member and a second end of the second member. the first member, wherein the first member forms a radiator of the antenna; a power feed connector for electrically connecting the first member with the circuit board; and a ground connector for electrically ground-connecting the first member with the circuit board, such that the power feed connector, the first member, and the ground connector form the conductive loop for radiating the radio signals, wherein the first slit portion is formed between the first end of the first member and a first end of the second member and the second slit portion is formed between the second end of the first member and a second end of the second member.