We investigated theoretically the peculiarities of Bremsstrahlung produced by decelerated Cherenkov electrons. We calculated the form of the wave fronts and the structure of the radiation using Lienard-Wiechert potentials. Significantly found peculiarities of the radiation structure were compared to the case of rectilinear motion considered by I. Tamm and I. Frank. In particular, we found that a significant longitudinal component appeared because of the deceleration of the charge. We found that for some parameters of the electron motion, the electrical field changes its direction for a short time during deceleration.