1. An electronic device, comprising:a housing including a first face oriented in a first direction, a second face oriented in a second direction opposite the first direction, and a side member at least partially surrounding a space defined between the first face and the second face;
a support member disposed within the housing such that at least a portion of a side face of the support member is oriented towards an inner wall of the side member;
a circuit board mounted on one face of the support member;
an electrically conductive plate mounted on a second face of the support member; and
a contact member mounted on the support member so as to electrically couple at least a portion of the side member to the circuit board,
wherein the contact member includes an end portion disposed adjacent to the plate at a position stepped relative to the plate, and an end face of the end portion includes a width smaller than a width of another portion of the contact member different than the end portion, and
wherein a mid portion of the contact member penetrates through the support member, such that all surfaces of the mid portion physically contact interior surfaces of the support member.