An electronic device comprising: a housing; a wireless communication circuit; a first ground a first antenna radiator electrically connected with the first ground; a second ground; a second antenna radiator electrically connected with the second ground; a feeding unit (721a3) configured to feed at least one of the first antenna radiator or the second antenna radiator; and a first switch configured to: operate at a first connection state where the feeding unit (721a3) and the first antenna radiator are electrically connected to each other, operate at a second connection state where the feeding unit (721a3) and the second antenna radiator are electrically connected to each other, or operate at a third connection state where the feeding unit (721a3) and the first antenna radiator are connected to each other and the feeding unit (721a3) and the second antenna radiator are electrically connected to each other, based on a first control signal from the wireless communication circuit; wherein the wireless communication circuit is configured to: detect a signal resonating at the first antenna radiator and the second antenna radiator, identify a frequency band of the signal, in which a parameter indicating an intensity or communication quality of the signal is smaller than a specified value, and provide the first switch with the first control signal to transmit and receive the signal of the identified frequency band with a value greater than the specified value. a housing; a wireless communication circuit; a first ground a first antenna radiator electrically connected with the first ground; a second ground; a second antenna radiator electrically connected with the second ground; a feeding unit (721a3) configured to feed at least one of the first antenna radiator or the second antenna radiator; and a first switch configured to: operate at a first connection state where the feeding unit (721a3) and the first antenna radiator are electrically connected to each other, operate at a second connection state where the feeding unit (721a3) and the second antenna radiator are electrically connected to each other, or operate at a third connection state where the feeding unit (721a3) and the first antenna radiator are connected to each other and the feeding unit (721a3) and the second antenna radiator are electrically connected to each other, based on a first control signal from the wireless communication circuit; operate at a first connection state where the feeding unit (721a3) and the first antenna radiator are electrically connected to each other, operate at a second connection state where the feeding unit (721a3) and the second antenna radiator are electrically connected to each other, or operate at a third connection state where the feeding unit (721a3) and the first antenna radiator are connected to each other and the feeding unit (721a3) and the second antenna radiator are electrically connected to each other, based on a first control signal from the wireless communication circuit; wherein the wireless communication circuit is configured to: detect a signal resonating at the first antenna radiator and the second antenna radiator, identify a frequency band of the signal, in which a parameter indicating an intensity or communication quality of the signal is smaller than a specified value, and provide the first switch with the first control signal to transmit and receive the signal of the identified frequency band with a value greater than the specified value. detect a signal resonating at the first antenna radiator and the second antenna radiator, identify a frequency band of the signal, in which a parameter indicating an intensity or communication quality of the signal is smaller than a specified value, and provide the first switch with the first control signal to transmit and receive the signal of the identified frequency band with a value greater than the specified value.