An electronic device according to various embodiments of the present invention can comprise: a housing comprising a front plate, a rear plate which faces the opposite direction from the front plate, and a lateral bezel structure which surrounds a space between the front plate and rear plate, and the side bezel structure comprises a first conductive part, a second conductive part and a first insulating part formed between the first conductive part and second conductive part; a printed circuit board which is disposed inside the housing and comprises at least one ground layer electrically connected in a first position of the first conductive part adjacent to the first insulating part; a first conductive pattern which is electrically connected in a second position of the first conductive part further away from the first insulating part than the first position, and is disposed between the first position and second position when seen from the outside of the lateral bezel structure; a first wireless communication circuit which is electrically connected in a second position and transmits and receives a first signal having a first frequency, and is electrically connected in a third position of the second conductive part and transmits and receives a second signal having a second frequency; a second conductive pattern which is disposed between the second position and third position when seen from the outside of a lateral member, and is electrically connected to the ground layer; and a second wireless communication circuit which is electrically connected in the second position and receives a third signal having a third frequency, and is electrically connected in the third position and receives a fourth signal having a fourth frequency. Various other embodiments may be possible.