An electronic device according to various embodiments of the present invention can comprise: a foldable housing, which comprises a hinge structure, a first housing structure connected to the hinge structure and including a first surface facing a first direction, a second surface facing a second direction that is opposite to the first direction, and a first side member that encompasses at least a portion of the space between the first and second surfaces and includes at least one first conductive part, and a second housing structure connected to the hinge structure, including a third surface facing a third direction, a fourth surface facing a fourth direction that is opposite to the third direction, and a second side member that encompasses at least a portion of the space between the third and fourth surfaces and includes at least one second conductive part, and which comes into contact with the first housing structure with the hinge structure as the center thereof, wherein the first surface faces the third surface in a folded state and the third direction is the same as the first direction in an unfolded state; a flexible display extending from the first surface to the third surface; a first communication processor arranged inside the first housing structure; a first wireless communication circuit arranged inside the first housing structure, electrically connected to the first conductive part and the first communication processor, and configured to transmit and/or receive a first signal having a first frequency; and a second wireless communication circuit arranged inside the second housing structure, electrically connected to the second conductive part and the first communication processor, and configured to transmit and/or receive a second signal having a second frequency. Other various embodiments are possible.