An electronic device , comprising: a first antenna element ; a first switch configured to enable the first antenna element to receive, selectively, signals of a first frequency band and a second frequency band or signals of the first frequency band and a third frequency band; a second antenna element configured to receive a signal of the third frequency band; a first radio frequency, RF, block configured to process a signal of the first frequency band; a second RF block configured to process a signal of the second frequency band; a third RF block configured to process a signal of the third frequency band; a second switch configured to connect the first antenna element with the second RF block or the third RF block according to a connection of the first switch and connect the second antenna element with third RF block according to whether a network supports carrier aggregation, CA; a transceiver configured to be electrically connected with the first RF block , the second RF block and the third RF block ; and a processor configured to be electrically connected with the transceiver , wherein, if a network supports CA using the second frequency and the third frequency band, the processor controls the first switch such that the first antenna element receives the signals of the first frequency band and the second frequency band, controls the second switch to connect the first antenna element with the second RF block and connect the second antenna element with the third RF block , and enables the transceiver to perform CA using the signal of the second frequency band and the signal of the third frequency band. a first antenna element ; a first switch configured to enable the first antenna element to receive, selectively, signals of a first frequency band and a second frequency band or signals of the first frequency band and a third frequency band; a second antenna element configured to receive a signal of the third frequency band; a first radio frequency, RF, block configured to process a signal of the first frequency band; a second RF block configured to process a signal of the second frequency band; a third RF block configured to process a signal of the third frequency band; a second switch configured to connect the first antenna element with the second RF block or the third RF block according to a connection of the first switch and connect the second antenna element with third RF block according to whether a network supports carrier aggregation, CA; a transceiver configured to be electrically connected with the first RF block , the second RF block and the third RF block ; and a processor configured to be electrically connected with the transceiver , wherein, if a network supports CA using the second frequency and the third frequency band, the processor controls the first switch such that the first antenna element receives the signals of the first frequency band and the second frequency band, controls the second switch to connect the first antenna element with the second RF block and connect the second antenna element with the third RF block , and enables the transceiver to perform CA using the signal of the second frequency band and the signal of the third frequency band. <EOS>