Mechanically tuned accelerating resonators

Two types of mechanical variators of the accelerating gap capacity are considered. In the first of them the stationary plates placed on the end outer surface of the inner tube and the moving inside of ring rotor of a reactive reductor type motor are placed. The rotor is installed in vacuum with the possibility to roll over inner surface of the outer tube with the stator on its outer surface. In the second variator the moving plates swing along the resonator axis direction in front of the inner tube and by means of the outer electromagnetic driver. The characteristics of the capacity variators in a HOM relationship are compared