Electronic device including an antenna

An electronic device comprising:

• a housing providing a front surface of the electronic device and a rear surface of the electronic device;
• an antenna structure including a printed circuit board located within the housing and including a first surface facing the front surface or the rear surface and a second surface facing an opposite direction to the first surface, wherein the printed circuit board comprises:
• a first conductive layer including a first antenna element and a second antenna element that do not overlap each other when viewed from above the first surface,
• a second conductive layer located closer to the second surface than the first conductive layer and operating as a ground plane, and
• a dielectric located between the first conductive layer and the second conductive layer;
• and
• a conductive pattern that overlaps the second conductive layer when viewed from above the first surface;
• wherein, when the first surface faces the rear surface, the conductive pattern is located between the front surface and the second surface,
• wherein, when the first surface faces the front surface, the conductive pattern is located between the rear surface and the second surface, and
• wherein, when viewed from above the first surface, the second conductive layer includes a second edge corresponding to a first edge of the first antenna element or the second antenna element, wherein the conductive pattern includes a third edge corresponding to the second edge, and wherein the second edge is located between the first edge and the third edge.