  On the base of modified mode matching method we obtain some results that can
be useful in the process of tuning of nonunifrom disk-loaded structures. Our
consideration has shown that there are some parameters that depend only on the
geometric sizes of sells and equals known values for the needed phase
distribution of the amplitudes of field expansion. Changing the geometric sized
in such way that these parameters will tend to a given values, we can
numerically design the structure that have the given phase distribution of
these amplitudes. We consider these tuning parameters as a good instrument
under simulation of inhomogeneous structures with sizes that usually used in
accelerators.
