An antenna arrangement comprising a generally helical antenna body arranged about a longitudinal axis and enclosing a generally helical signal lead body, the antenna body and the signal lead body having opposing rotational directions. Further an implantable electronic device is provided, comprising a header attached to a housing, wherein an antenna arrangement is arranged in the header, the antenna arrangement comprising a generally helical antenna body arranged about a longitudinal axis and coaxially enclosing a generally helical signal lead body, the antenna body and the signal lead body having opposing rotational directions.