Spectral approach with iterative clarification of a radiation boundary conditions for modeling of quasimodes of a gyrotrons open cavities
Purpose.The article presents a new method for numerical simulation of quasi-eigenmode oscillations in open resonators of gyrotrons — powerful vacuum generators of electromagnetic waves in the millimeter and submillimeter ranges.The gyrotron cavity has the shape of a weakly inhomogeneous hollow circular metal waveguide.Methods.The proposed app