ANTENNA AND ELECTRONIC DEVICE INCLUDING SAME

According to an embodiment of this disclosure, an electronic device comprises: a housing including a non-conductive portion; an antenna structure arranged in the housing, wherein the antenna structure includes: a substrate including a first substrate surface facing a first direction and a second substrate surface facing opposite the first substrate surface; and at least one antenna element arranged on the substrate to form a beam pattern in the first direction; a conductive member including a plurality of first slits arranged in an inner space of the housing to at least partially face the second substrate surface and formed at a position where the plurality of first slits at least partially overlap the at least one antenna element when the first substrate surface is viewed from above; and a wireless communication circuit configured to transmit or receive a wireless signal in a predetermined frequency band through the at least one antenna element.