[HTML][HTML] Exceptional degeneracies in traveling wave tubes with dispersive slow-wave structure including space-charge effect

K Rouhi, R Marosi, T Mealy, AF Abdelshafy… - Applied physics …, 2021 - pubs.aip.org
The interaction between a linear electron beam and a guided electromagnetic wave is
studied in the context of exceptional points of degeneracy (EPD) supported by such an
interactive system, focusing on a linear beam traveling wave tube (TWT) with a realistic helix
waveguide slow-wave structure (SWS). The interaction is formulated by an analytical model
that is a generalization of the Pierce model, assuming a one-dimensional electron flow
along a dispersive single-mode guiding SWS and taking into account space-charge effects …
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