According to embodiments described in the specification, a method and mobile electronic device are provided for tuning an antenna. The mobile electronic device comprises an electrical ground member supporting at least one antenna; a housing containing the electrical ground member and having a conductive ring defining the perimeter of the housing; and a conductive tuning member disposed between the conductive ring and the electrical ground member, for transforming an impedance between the electrical ground member and the conductive ring; wherein the conductive tuning member is connected to the conductive ring by a first short, and to the electrical ground member by a second short.