An electronic device according to an embodiment of the disclosure may include a housing including a front plate, a back plate disposed to the opposite side of the front plate, and a side member surrounding a space between the front plate and the back plate, wherein at least a part of the back plate is constructed of a conductive material, and the side member includes an opening, a touch screen display disposed between the front plate and the back plate, a female connector disposed inside the opening, constructed to house a meal connector an external male connector, and including a plurality of pins, a Printed Circuit Board (PCB) disposed inside the space and including a ground plane, a circuit electrically coupled to the ground plane and/or mounted thereon to cut off leak current from the PCB, a first conductive path constructed between the circuit and a first point of at least part of the back plate, and a second conductive path constructed between at least one of the pins and a second point of at least part of the back plate. In addition, various other embodiments are also possible.