Disclosed is an electronic device may include a housing including a plate including a first surface, and a support bracket including a (1-1)th side wall extending from an edge of the first surface and a (1-2)th side wall separated from the (1-1)th side wall by a first segmented portion, a camera bracket electrically connected to the (1-2)th side wall of the housing, and a printed circuit board disposed within the housing. An antenna pattern provided on the support bracket may include a conductive portion forming at least a portion of the (1-1)th side wall, and a ground portion connected to the conductive portion may be located between the camera bracket and the first segmented portion.