  Possibility of increase of transformer ratio TR in the case of the profiled
sequence of bunches at their injection in a two-beam electron-positron
dielectric-resonator collider is considered. Unlike considered earlier the
waveguide case, for which TR is equal to the doubled number of bunches of
sequence which provide a contribution to the total wakefield, and which is
limited by the effect of the group velocity, in a resonator this limitation is
absent. For deri-vation in the case of resonator of TR, proportional to the
number of bunches, as well as in the waveguide, the ratio of bunch charges is
selected to be equal 1:3:5: ..., lengths of bunches, equal to the half of
wavelength, interval be-tween bunches is multiple to the wavelength. The effect
of transition radiation and dispersion spreading on the transformer ratio is
studied by numerical simulation.
