Abstract: An electronic device includes a substrate including a ground layer; and a plurality of antenna structures space apart from each other on the substrate. Each of the plurality of antenna structures may include, on the substrate: a rectangular first conductive patch including a pair of cutting portions in which diagonally opposite corners are cut; a rectangular second conductive patch disposed so as to be coupled to the first conductive patch; and a plurality of conductive pads which are disposed along the periphery of the second conductive patch so as to be spaced apart from each other at a specified interval, and are electrically connected to the ground layer.