Abstract: An electronic device is provided. The electronic device includes a housing including a front surface plate, a rear surface plate, and a side surface portion providing a side surface, a first support positioned between the front surface plate and the rear surface plate and connected to the side surface portion, a display, a wireless communication circuit configured to transmit or receive a signal through an antenna radiator, camera circuitry positioned between the first support and the rear surface plate, and a conductive pattern positioned between the first support and the rear surface plate and at least partially overlapping with the camera circuitry when viewed from a top of the rear surface plate, and electrically connected to a ground of the electronic device, some electromagnetic waves, which travel toward the camera circuitry, among electromagnetic waves radiating from the antenna radiator, flow to the ground through the conductive pattern.