Genoud, J.Alberti, S.Hogge, J-Ph2021-07-312021-07-312021-07-312020-01-0110.1109/IRMMW-THz46771.2020.9370793https://infoscience.epfl.ch/handle/20.500.14299/180254WOS:000662887600361Recently developed self-consistent models for beam-wave interaction simulations of a gyrotron oscillator have been extended to study spurious backward-wave instabilities in smooth-wall circular symmetric beam ducts. Starting from a purely metallic case, the influence of a dielectric coating on different parts of the beam duct is studied.yEngineering, Electrical & ElectronicPhysics, AppliedEngineeringPhysicsLinear studies of spurious backward-wave instabilities in a dielectric-loaded smooth-wall gyrotron beam ductstext::conference output::conference proceedings::conference paper