Asymmetry of the electron beam and electrodynamics system has been demonstrated by PIC codes. THE INFLUENCE OF THE AZIMUTHAL INHOMOGENEITY OF ELECTRON BEAM–MICROWAVE INTERACTION ON THE OPERATION REGIME OF SUBTERAHERTZ GYROTRONS Read more about THE INFLUENCE OF THE AZIMUTHAL INHOMOGENEITY OF ELECTRON BEAM–MICROWAVE INTERACTION ON THE OPERATION REGIME OF SUBTERAHERTZ GYROTRONS