Design procedure for hot-matched severs in folded-waveguide traveling-wave tubes

Publikationstyp
Conference Paper
Publikationsdatum
2016-04-27
Sprache
English
Author
Meyne, Sascha 
Safi, Djamschid orcid-logo
Jacob, Arne 
Institut
Hochfrequenztechnik E-3 
TORE-URI
http://hdl.handle.net/11420/4895
Start Page
361
End Page
364
Article Number
7461631
Citation
GeMiC 2016 - 2016 German Microwave Conference: 7461631 (2016-04-27)
Contribution to Conference
German Microwave Conference, GeMiC 2016 
Publisher DOI
10.1109/GEMIC.2016.7461631
Scopus ID
2-s2.0-84969528620
A design procedure for a hot-matched sever for folded-waveguide traveling-wave tubes (FW-TWTs) is proposed. To determine a starting point for a suitable load design, a realistic three-dimensional sever structure is developed using equivalent circuits and subsequent particle-free (cold) full-wave simulation. Additional wave impedance information, obtained by a small-signal eigenvalue analysis, is used to improve the termination for hot operation. The final full-wave optimization is then performed in the presence of the electron beam with only moderate computational effort. This procedure is applied to develop a sever structure for a given frequency point at Q-band. The simulated results support the approach.