A filter element (1) for filtering fluids, such as hydraulic fluids or gases, is in a filter housing (12) having an inlet (18) for the fluid to be filtered, an outlet (20) for the filtered fluid. The filter element has a data storage (52). Data stored in the data storage (52) is electronically readable from the data storage (52) by a read and/or write device (70). An antenna (60) extends outside the data storage (52) and provides the signal coupling between the data storage (52) and the read and/or write device (70). The antenna (60) extends at least in sections about a longitudinal axis (44) of the filter element (1) such that independently from the angular position of the filter element (1) and the attached data storage (52) a signal coupling between the data storage (52) and the read and/or write device (70) is ensured.