Patent ID: 8271060

Claim:
An antenna device for a portable wireless terminal, the device comprising: a main antenna for transmitting and receiving a signal in a first frequency band; a Transmit (Tx) sub-antenna for transmitting a signal in a second frequency band; a Receive (Rx) sub-antenna for receiving a signal in a third frequency band; and a controller for selectively using one of the Tx sub-antenna and the Rx sub-antenna if the second frequency band overlaps with the third frequency band, and for providing control such that the Tx sub-antenna and the Rx sub-antenna are simultaneously used if the second frequency band does not overlap with the third frequency band, wherein the controller provides control such that the main antenna for mobile communication is continuously used for calling and call waiting, and wherein the Tx sub-antenna comprises: a main board having a power feeding portion electrically connected to an RF connector; a bolster plate for bolstering the main board; an antenna radiator, included in a case frame comprising an outer surface of the terminal, for transmitting signals; and an electrical connection element for electrically connecting the antenna radiator and the power feeding portion.