Ditherable and tunable magnetron comprising axially tuning and rotational tuning members

摘要

A tunable magnetron is disclosed comprising a first tuning body rotatable in an annular groove formed by axial slots in the anode plates for rapidly varying the magnetron frequency. The rapid frequency tuning is combined with a slow or quasi-stationary frequency variation produced by a second axially displaceable tuning body having conductive projections which extend into the resonant cavities between adjacent anode plates from the end thereof opposite the first rotatable tuning body. The entire tuning range of the first tuning body is shifted along the frequency scale by an axial displacement of the second tuning body.