value 0 be obtained it suffices to select the third vector c such that the result i e the addition of the three vectors yields an amount that lies below a prescribed limit value for example this allows the phase of the vector c to be set only approximately and to then undertake the fine tuning via the amount the amount in the surface active wave filter can then be set via a variation of the aperture the invention is presented here on the basis of only a few exemplary embodiments and of course is not limited to these on the contrary it is possible to vary a number of parameters it is also possible to combine the variation possibilities shown in the various figures and to thereby create more complex surface active wave filters the invention is also not limited to a surface active wave filter with three tracks on the contrary the invention also allows surface active wave filters having a higher number of tracks to be manufactured as a result of the parallel or series circuit of three and more tracks and the superimposition of the signals from the individual tracks that is thus obtained a more complex transmission behavior of the surface active wave filter can be inventively presented given a shortening of the track length a desired transmission behavior that meets these demands specifications of the mobile radiotelephone system can nonetheless be obtained overall despite deteriorated properties of the individual track the particular implementations shown and described herein are illustrative examples of the invention and are not intended to otherwise limit the scope of the invention in any way for the sake of brevity conventional electronics may not.