Antenna structure and electronic device comprising same

An antenna module comprising:

• a plurality of antennas including a first antenna having an octagon shape and a second antenna having an octagon shape, wherein the first antenna includes a first edge, a second edge, and a third edge connected with the first edge and the second edge;
• a first feeding line connected to the first edge of the first antenna and configured to apply a first signal to the first edge of the first antenna in a first feeding direction perpendicular to the first edge, wherein the first signal has a first polarization;
• and
• a second feeding line connected to the second edge of the first antenna and configured to apply a second signal to the second edge of the first antenna in a second feeding direction perpendicular to the second edge,
• wherein the second signal has a second polarization,
• wherein a direction of the first polarization is parallel with the first feeding direction,
• wherein the second antenna is spaced apart from the first antenna in a direction parallel with the third edge, and
• wherein the direction of the first polarization of the first signal applied to the first edge is +45 degrees with respect to the direction parallel with the third edge.