Disclosed is an electronic device including a housing having a front surface, a rear surface, and a side surface partially surrounding a space between the front surface and the rear surface, wherein at least one of the front surface, the rear surface, and the side surface comprises a non-conductive portion, and at least a partial region of the non-conductive portion comprises a first through hole, a component at least partially overlapping the first through hole when the non-conductive portion is viewed from outside the housing, wherein the component is disposed at a position spaced apart from the non-conductive portion by a first distance, and an antenna structure disposed at a position spaced apart from the non-conductive portion by a second distance shorter than the first distance, wherein the antenna structure is configured to radiate radio waves through the non-conductive portion, and comprises at least one second through hole.