According to various embodiments of the present disclosure, an electronic device may include: a housing including a first plate and a second plate; a printed circuit board having a first surface and a second surface; and a communication circuit arranged inside the housing. The printed circuit board may include: a plurality of insulating layers laminated on each other between the first surface and the second surface; an antenna element arranged in a first region above the second surface of the printed circuit board or between a first pair of insulating layers of the printed circuit board, when seen from above the second surface of the printed circuit board; and a plurality of first electroconductive patterns arranged in a second region that at least surrounds one surface of the first region. Various embodiments may be possible.