scholarly journals Exceptional points of degeneracy in traveling wave tubes

2021 ◽  
Vol 62 (8) ◽  
pp. 082701
Author(s):  
Alexander Figotin
Keyword(s):  
Traveling Wave ◽  
Exceptional Points ◽  
Traveling Wave Tubes

Traveling wave tubes: a history of people and fates

2019 ◽  
Vol 190 (05) ◽  
pp. 543-556
Author(s):  
Dmitrii I. Trubetskov ◽  
Galina M. Vdovina
Keyword(s):  
Traveling Wave ◽  
History Of ◽  
Traveling Wave Tubes

Investigation of W-band Diverse-shaped Groove-loaded Folded Waveguide Traveling-wave Tubes

2013 ◽  
Vol 34 (7) ◽  
pp. 1760-1766 ◽  
Author(s):  
Bo Peng ◽  
Jun He ◽  
Ming-guang Huang ◽  
Bao-liang Hao ◽  
Pu-kun Liu
Keyword(s):  
Traveling Wave ◽  
Folded Waveguide ◽  
W Band ◽  
Traveling Wave Tubes

Development of High-Power Sub-THz Traveling-Wave Tubes with Multiple Sheet Electron Beams

2020 ◽  
Author(s):  
Nikita M. Ryskin ◽  
Gennadiy V. Torgashov ◽  
Roman A. Torgashov ◽  
Andrey G. Rozhnev ◽  
Vladimir N. Titov ◽  
...  
Keyword(s):  
High Power ◽  
Traveling Wave ◽  
Electron Beams ◽  
Traveling Wave Tubes

A Wideband High-Voltage Longitudinal Output Structure for Ka-Band Sheet Beam Traveling-Wave Tubes

2021 ◽  
Vol 69 (4) ◽  
pp. 2042-2047
Author(s):  
Xinjie Li ◽  
Jianxun Wang ◽  
Yixin Wan ◽  
Wei Jiang ◽  
Zewei Wu ◽  
...  
Keyword(s):  
High Voltage ◽  
Traveling Wave ◽  
Ka Band ◽  
Output Structure ◽  
Traveling Wave Tubes

Design of coaxial and waveguide couplers for helix TWT

Frequenz ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Mukesh Kumar Alaria ◽  
Sanjay Kumar Ghosh
Keyword(s):  
Traveling Wave ◽  
Return Loss ◽  
Characteristic Impedance ◽  
Three Dimensional ◽  
Waveguide Coupler ◽  
Quarter Wavelength ◽  
Different Types ◽  
Waveguide Type ◽  
Transformer Design ◽  
Traveling Wave Tubes

Abstract In this paper, two types of coaxial coupler and waveguide coupler for different frequency helix traveling wave tubes (TWTs) are designed, fabricated and cold tested. The coaxial coupler includes of window ceramic and RF transformer section. At present multi-section impedance transformer design approach is used for wideband helix TWTs. In any helix TWT, impedance of the source is transformed to the characteristic impedance of helix. This is done by the quarter-wavelength (λ/4) impedance transformation approach. The simulated results of different types of couplers are carried out by HFSS and CST microwave studio software and compare with experimental results. Three-dimensional electromagnetic field simulators allowing the any geometry with port excitations it is possible to model the complex coaxial and waveguide type couplers with helix SWS assembly and predict its desired return loss performances.

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