Electronic device comprising antenna and segment structure

An electronic device comprising:

• a housing including a peripheral part forming at least a portion of a lateral side of the electronic device, the peripheral part including:
• a first conductive portion including a first section and a second section thinner than the first section of the first conductive portion, wherein the first conductive portion is configured to function as an antenna,
• a second conductive portion, spaced apart from the first conductive portion, including a third section and a fourth section, the third section being closer to the second section of the first conductive portion than to the first section of the first conductive portion, wherein the third section of the second conductive portion is thinner than the fourth section of the second conductive portion, and
• a non-conductive portion disposed between the first conductive portion and the second conductive portion;
• and
• an antenna module different from the antenna, the antenna module including:
• a substrate, in the housing, disposed in a direction parallel to the peripheral part, and
• a plurality of antenna elements spaced apart from each other on one surface of the substrate in the direction;
• and
• wireless communication circuitry electrically connected to the antenna module and the first conductive portion configured to function as the antenna,
• wherein the antenna module is disposed to overlap a notch portion of the peripheral part and the non-conductive portion, and
• wherein the notch portion is formed by a difference in thickness between the first and second sections of the first conductive portion and a difference in thickness between the third and fourth sections of the second conductive portion.