A mobile communication terminal comprising a case having inner and outer surfaces, the mobile communication terminal comprising: a first layer (141, 241) formed over the outer surface of the case, the first layer (141, 241) comprising conductors for allowing plating on the outer surface of the case; a second layer (142, 242) formed over the first layer (141, 241), the second layer (142, 242) comprising an antenna pattern for transmitting and receiving radio signals corresponding to one or more frequency bands; a third layer (143, 243) formed over the second layer (142, 242) and the outer surface; a circuit board (118, 218, 318) configured to process signals conformable to the radio signals, wherein the circuit board (118, 218, 318) is disposed within the inner surface of the case; a connection unit formed through the case and configured to electrically connect the second layer (142, 242) to the circuit board; an accommodation chamber formed at the outer surface of the case and configured so that a battery is mounted therein; wherein the outer surface comprises a main surface and side surfaces, wherein the antenna pattern is formed over the main surface and at least one of the side surfaces such that the antenna pattern forms a three-dimensional shape, a cover detachably mounted at the case and configured to cover the antenna pattern formed over the main surface and configured to cover the accommodation chamber, respectively, the main surface and the side surfaces are exposed to outside when the cover is detached from the case, and the side surfaces are exposed to outside when the cover is mounted to the case; and wherein a protection plating layer is plated on the antenna pattern and is located between the antenna pattern and the third layer (143, 243). a first layer (141, 241) formed over the outer surface of the case, the first layer (141, 241) comprising conductors for allowing plating on the outer surface of the case; a second layer (142, 242) formed over the first layer (141, 241), the second layer (142, 242) comprising an antenna pattern for transmitting and receiving radio signals corresponding to one or more frequency bands; a third layer (143, 243) formed over the second layer (142, 242) and the outer surface; a circuit board (118, 218, 318) configured to process signals conformable to the radio signals, wherein the circuit board (118, 218, 318) is disposed within the inner surface of the case; a connection unit formed through the case and configured to electrically connect the second layer (142, 242) to the circuit board; an accommodation chamber formed at the outer surface of the case and configured so that a battery is mounted therein; wherein the outer surface comprises a main surface and side surfaces, wherein the antenna pattern is formed over the main surface and at least one of the side surfaces such that the antenna pattern forms a three-dimensional shape, a cover detachably mounted at the case and configured to cover the antenna pattern formed over the main surface and configured to cover the accommodation chamber, respectively, the main surface and the side surfaces are exposed to outside when the cover is detached from the case, and the side surfaces are exposed to outside when the cover is mounted to the case; and wherein a protection plating layer is plated on the antenna pattern and is located between the antenna pattern and the third layer (143, 243).