Antenna and electronic device including the same

An electronic device comprising:

• a housing comprising a conductive part;
• a device substrate disposed in an inner space of the housing;
• an antenna structure disposed in the inner space so as to form a directional beam, the antenna structure comprising:
• a substrate,
• an array antenna comprising a plurality of antenna elements disposed at the substrate, and
• a support bracket disposed to support the substrate,
• an electrical connection member electrically connecting the substrate and the device substrate to each other;
• a conductive contact electrically connecting the electrical connection member and the conductive part to each other;
• a first wireless communication circuit disposed on the substrate and configured to transmit or receive a first wireless signal in at least one first frequency band through the antenna structure;
• and
• a second wireless communication circuit disposed on the device substrate, and configured to transmit or receive a second wireless signal in at least one second frequency band through the conductive part,
• wherein a portion of the conductive contact is fixed to the electrical connection member and another portion of the conductive contact is fixed to the conductive part of the housing, and
• wherein the conductive part of the housing is electrically connected to the second wireless communication circuit disposed on the device substrate through the conductive contact and the electrical connection member.