An electronic device, comprising: a housing; a sensor module configured to sense user contact with the electronic device; a conductive member forming at least a part of the housing; first to third nonconductive members (161, 162, 163) separating the conductive member, wherein the conductive member includes a first conductive pattern disposed between the first nonconductive member and the second nonconductive member, and a second conductive pattern disposed between the second nonconductive member and the third nonconductive member; a first feeding part connected to the first conductive pattern; a second feeding part connected to the second conductive pattern; a first ground part connected to the first conductive pattern at a point adjacent to the second nonconductive member; and a communication circuit (1020, 1025, 1050) electrically connected with the conductive member, wherein the first conductive pattern and the first feeding part are configured to operate as a first antenna transmitting and receiving a multi-band frequency signal, wherein the second conductive pattern and the second feeding part are configured to operate as a second antenna transmitting and receiving a multi-band frequency signal, wherein the first antenna is configured to transmit and receive signals through a first frequency band, wherein the second antenna is configured ot transmit and receive signals through a second frequency band, at least a part of the second frequency band being common to the first frequency band, and characterized in that the communication circuit (1020, 1025, 1050) is configured to adjust corresponding frequency bands in the first antenna and the second antenna in consideration of influence due to the user contact in response to the sensor module detecting whether the user is gripping the electronic device in his/her right hand or in his/her left hand. a housing; a sensor module configured to sense user contact with the electronic device; a conductive member forming at least a part of the housing; first to third nonconductive members (161, 162, 163) separating the conductive member, wherein the conductive member includes a first conductive pattern disposed between the first nonconductive member and the second nonconductive member, and a second conductive pattern disposed between the second nonconductive member and the third nonconductive member; a first feeding part connected to the first conductive pattern; a second feeding part connected to the second conductive pattern; a first ground part connected to the first conductive pattern at a point adjacent to the second nonconductive member; and a communication circuit (1020, 1025, 1050) electrically connected with the conductive member, wherein the first conductive pattern and the first feeding part are configured to operate as a first antenna transmitting and receiving a multi-band frequency signal, wherein the second conductive pattern and the second feeding part are configured to operate as a second antenna transmitting and receiving a multi-band frequency signal, wherein the first antenna is configured to transmit and receive signals through a first frequency band, wherein the second antenna is configured ot transmit and receive signals through a second frequency band, at least a part of the second frequency band being common to the first frequency band, and characterized in that the communication circuit (1020, 1025, 1050) is configured to adjust corresponding frequency bands in the first antenna and the second antenna in consideration of influence due to the user contact in response to the sensor module detecting whether the user is gripping the electronic device in his/her right hand or in his/her left hand.