Electronic device including antenna

An electronic device comprising:

• a first housing comprising a first support member facing in a first direction, a first rear cover facing in a second direction opposite the first direction, and a first side member surrounding a first space between the first support member and the first rear cover;
• a second housing comprising a second support member facing in the first direction, a second rear cover facing in the second direction, and a second side member surrounding a second space between the second support member and the second rear cover;
• a hinge structure connected to the first housing and the second housing and configured to be folded about a folding axis;
• a first antenna structure disposed in the first space and configured to form a first electric field in the second direction so as to pass through the first rear cover;
• a second antenna structure disposed near the first antenna structure in the first space and configured to form a second electric field in a third direction perpendicular to the second direction;
• and
• a conductive member disposed between the first antenna structure and the second antenna structure.