Safi, DjamschidDjamschidSafiMeyne, SaschaSaschaMeyneJacob, ArneArneJacob2020-02-122020-02-122016-09-062016 IEEE International Vacuum Electronics Conference, IVEC 2016: 7561761 (2016-09-06)http://hdl.handle.net/11420/4889A small-signal model for the gain estimation of traveling-wave tubes with folded-waveguide delay lines is derived from perturbation theory. The model extends an existing formulation from literature, and increases its accuracy significantly. The results are compared to full-wave particle-in-cell simulation.enConference Paper10.1109/IVEC.2016.7561761Other