Abstract: A dual antenna capable of controlling a radiation characteristic in a folder type mobile communication terminal. The dual antenna comprises a first directional antenna mounted on a folder of the mobile communication terminal, and a second directional antenna mounted on a body of the mobile communication terminal. In a suspended state where the folder is folded against the body, the first and second directional antennas have directivities in an opposite direction. However, in a call state where the folder is unfolded away from the body, the first and second directional antennas have directivities in the same direction. Preferably, the first directional antenna is mounted on a rear side of the body of the mobile communication terminal, and the second directional antenna is mounted on an outer side of the folder of the mobile communication terminal.

Abstract: An antenna apparatus for a folder type mobile phone, wherein a first antenna is installed in a main body of the folder type mobile phone, and a second antenna is installed in the folder. The folder type mobile phone installs a main antenna apparatus in the main body, and an antenna apparatus for maximizing the diversity effect in the folder. As a result, it becomes more convenient to carry the folder type mobile phone based on the diversity mode, while securing a broader separation distance between two antennas at the same time.

Abstract: Disclosed is a portable telephone terminal comprising (A) a main housing, (B) a folder housing, and (C) hinge means for rotatably connecting the folder housing to the main housing and including a hinge dummy installed at one side of a hinge axis between the main housing and the folder housing and a hinge module installed on the opposite side to the hinge dummy and providing a force for opening and closing the folder housing from and into the main housing, in characterized in that the portable telephone terminal comprises (a) an outer cylindrical surface provided in a direction of the hinge axis on one side of the hinge dummy, and (b) an antenna member coiled more than one time around the outer cylindrical surface to be fixed to the outer cylindrical surface, one end of the antenna member being connected to a printed circuit board of the main housing so as to form a power-feeding portion.

Abstract: A folder-type portable phone with controllable radiation. In the folder-type portable phone, a body housing is a metal case, a folder housing is a metal case, a hinge device rotatably connects the folder housing to the body housing, and a contact portion makes contact between the body housing and the folder housing when the folder housing is completely opened away from the body housing, thereby minimizing an SAR (Specific Absorption Rate) level of the folder-type portable phone is minimized.

Abstract: A dual antenna capable of controlling a radiation characteristic in a folder type mobile communication terminal. The dual antenna comprises a first directional antenna mounted on a folder of the mobile communication terminal, and a second directional antenna mounted on a body of the mobile communication terminal. In a suspended state where the folder is folded against the body, the first and second directional antennas have directivities in an opposite direction. However, in a call state where the folder is unfolded away from the body, the first and second directional antennas have directivities in the same direction. Preferably, the first directional antenna is mounted on a rear side of the body of the mobile communication terminal, and the second directional antenna is mounted on an outer side of the folder of the mobile communication terminal.