An electronic device for minimizing parasitic emission is provided. The electronic device includes a housing including a front cover, a rear cover located on the opposite side of the front cover, and a lateral member surrounding a space between the front cover and the rear cover, the lateral member having a first conductive portion formed on at least a portion thereof, a support member disposed in the space of the housing and including a second conductive portion having therein at least one opening, a display including a conductive sheet that is disposed between the front cover and the support member so as to be visible from an outside through at least a part of the front cover and is disposed to face the support member, and a wireless communication circuit electrically connected to the first conductive portion. The conductive sheet includes a first portion, a second portion disposed adjacent to the first portion, and a coupling that is partly connected between the first portion and the second portion. In case the front cover is viewed from above, the coupling is disposed at a position overlapping the opening.