Surface acoustic wave filter used for mobile phone

The utility model relates to the surface acoustic wave filter technical field, concretely to a surface acoustic wave filter used for a mobile phone. The surface acoustic wave filter comprises two reflecting gratings and a plurality of parallelly arranged interdigital energy transducers; the interdigital energy transducers are electrically in parallel connection and acoustically in series connection and are arranged between the reflecting gratings; the interdigital energy transducers are respectively divided into a plurality of electrode zones, wherein the electrode period of the electrode finger of each electrode zone is 2.8-4.8 micrometers. The surface acoustic wave filter used for a mobile phone has a wide bandpass width and small insertion loss and can meet radio frequency filtering requirement of a mobile phone.