Meyne, SaschaSaschaMeyneBirtel, PhilipPhilipBirtelJacob, ArneArneJacob2020-02-122020-02-122016-03German Microwave Conference, GeMiC 2016http://hdl.handle.net/11420/4893A modified folded-waveguide (FW) delay line for traveling-wave tubes (TWTs) is proposed. The amplifier performance is assessed by full-wave and interaction simulation. Properly designed nose cones are shown to enhance the beam-wave coupling. This, in turn, improves the amplifier gain, a weak point of conventional FW-TWTs. The achievable beam efficiency is increased without sacrificing too much bandwidth.enTechnology::600: TechnologyConference Paper10.1109/GEMIC.2016.7461634