An electronic device comprising: a housing configured to include a first plate, a second plate facing away from the first plate, and a lateral member surrounding a space between the first plate and the second plate (21 0B); an antenna structure disposed in the housing, wherein the antenna structure includes: a plurality of insulating layers including a first plane, a second plane parallel with the first plane, and an array of loop antennas including conductive patterns and formed at substantially fixed intervals, wherein the conductive patterns include: a first conductive pattern disposed on the first plane of the plurality of insulating layers, a second conductive pattern disposed on the second plane, a third conductive pattern disposed on the second plane spaced apart from the second conductive pattern, a first connecting member (424, 461) electrically connecting the first conductive pattern and the second conductive pattern through or across the plurality of insulating layers, a second connecting member (425, 461) electrically connecting the first conductive pattern and the third conductive pattern through or across the plurality of insulating layers, a fourth conductive pattern disposed on a third plane parallel to the first plane, wherein the first plane is located between the second plane and the third plane, and a third connecting member configured to electrically connect the first conductive pattern and the fourth conductive pattern through or across the plurality of insulating layers; and a wireless communication circuit electrically connected to the loop antennas and set to transmit/receive a first signal having a first frequency of a range of 3 GHz to 100 GHz. a housing configured to include a first plate, a second plate facing away from the first plate, and a lateral member surrounding a space between the first plate and the second plate (21 0B); an antenna structure disposed in the housing, wherein the antenna structure includes: a plurality of insulating layers including a first plane, a second plane parallel with the first plane, and an array of loop antennas including conductive patterns and formed at substantially fixed intervals, a plurality of insulating layers including a first plane, a second plane parallel with the first plane, and an array of loop antennas including conductive patterns and formed at substantially fixed intervals, wherein the conductive patterns include: a first conductive pattern disposed on the first plane of the plurality of insulating layers, a second conductive pattern disposed on the second plane, a third conductive pattern disposed on the second plane spaced apart from the second conductive pattern, a first connecting member (424, 461) electrically connecting the first conductive pattern and the second conductive pattern through or across the plurality of insulating layers, a second connecting member (425, 461) electrically connecting the first conductive pattern and the third conductive pattern through or across the plurality of insulating layers, a fourth conductive pattern disposed on a third plane parallel to the first plane, wherein the first plane is located between the second plane and the third plane, and a third connecting member configured to electrically connect the first conductive pattern and the fourth conductive pattern through or across the plurality of insulating layers; and a first conductive pattern disposed on the first plane of the plurality of insulating layers, a second conductive pattern disposed on the second plane, a third conductive pattern disposed on the second plane spaced apart from the second conductive pattern, a first connecting member (424, 461) electrically connecting the first conductive pattern and the second conductive pattern through or across the plurality of insulating layers, a second connecting member (425, 461) electrically connecting the first conductive pattern and the third conductive pattern through or across the plurality of insulating layers, a fourth conductive pattern disposed on a third plane parallel to the first plane, wherein the first plane is located between the second plane and the third plane, and a third connecting member configured to electrically connect the first conductive pattern and the fourth conductive pattern through or across the plurality of insulating layers; and a wireless communication circuit electrically connected to the loop antennas and set to transmit/receive a first signal having a first frequency of a range of 3 GHz to 100 GHz.