An antenna module includes an antenna substrate having a first surface and a second surface disposed to oppose each other, and including a substrate wiring layer having a first antenna pattern positioned in a first region, a second antenna pattern disposed in a second region adjacent to one side, and first and second feed patterns connected to the first and second antenna patterns, respectively; and a semiconductor package including a connection structure disposed on the second surface except for an area overlapping with the second region of the antenna substrate and redistribution layers electrically connected to the substrate wiring layer, and at least one semiconductor chip having connection pads connected to the redistribution layers. A region overlapping with the second feed pattern in each of the plurality of redistribution layers is provided as an opened region.