Square-and rectangular-ring vertex-bar slow wave structures for high-efficiency wide bandwidth TWTs

W Wei, S Wang, Y Wei, W Hu, L Zhang… - … on Electron Devices, 2022 - ieeexplore.ieee.org
In this article, novel square-ring vertex-bar (SRVB) and rectangular-ring vertex-bar (RRVB)
slow wave structures (SWSs) are proposed to develop high-efficiency wide bandwidth …

A Novel Conical Cut Frequency-Tapered Ring Bar SWS for High-Power and Wide-Bandwidth K-Band TWTs

G Comparato, G Paterna, G Lipari, E Traina… - IEEE …, 2024 - ieeexplore.ieee.org
This article presents a novel frequency-tapered Ring Bar Slow Wave Structure (RBSWS) for
high-gain and wide-bandwidth Traveling Wave Tubes (TWTs) operating in the K-band for …

[HTML][HTML] Electro-thermal co-simulation of high-frequency structure of staggered double-grating traveling wave tube based on finite difference time domain

Y Wang, Y Zheng, B Liang, Y Dong, S Wang… - Case Studies in Thermal …, 2024 - Elsevier
The heat dissipation issue of a Traveling Wave Tube (TWT) affects its stability and reliability.
In this paper, the particle-in-cell (PIC) code based on the finite difference time domain …

Novel rectangular-ring vertex double-bar slow wave structure for high-power high-efficiency traveling-wave tubes

W Wei, C Yu, Y Wei, M Tan, Z Lu, M Lu… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
A novel rectangular-ring vertex double-bar (RRVDB) slow wave structure (SWS) is proposed
to develop high-power high-efficiency traveling-wave tube (TWT). The remarkable …

Thermo-mechanical analysis on reflection characteristics of deformed coupling system of a helix traveling wave tube

C Mistry, R Guha, SK Ghosh - Journal of Electromagnetic Waves …, 2025 - Taylor & Francis
This paper proposes a fast ANSYS Multiphysics-based system coupling approach to study
the impact of structural deformation on the reflection coefficient (S11) of the helix travelling …

Accurate and efficient thermal analysis of slow wave structures for helix traveling-wave tubes by finite-element method

L Xu, SZ Wu, SY Yang, H Song… - … on Electron Devices, 2021 - ieeexplore.ieee.org
In slow wave structures (SWSs) for helix traveling-wave tubes, both thermal conductivities
(TCs) of materials and thermal contact resistances (TCRs) are temperature-dependent …

A novel helical slow-wave structure of a TWT with increased number of helix-support rods for the suppression of BWO caused by thermal deformation

C Shen, J Wang, J Zhang, J Feng… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Backward-wave oscillation (BWO) is one of the important factors affecting the output power
and operating stability of helix traveling-wave tubes (TWTs). A novel helical slow-wave …

Design of a pseudoperiodic slow wave structure for a 6-kW-level broadband helix traveling-wave tube amplifier

G Wu, H Yin, Z Xu, R Yang, X Lei, Q Li… - … on Plasma Science, 2020 - ieeexplore.ieee.org
In this article, a potentially pseudoperiodic slow wave structure (SWS) for a broadband, high-
power, helix traveling-wave tube (TWT) is studied. The structure considered here …

Thermal study on the dependence of contact resistances on helical SWS of TWTs

V Gahlaut, L Deval, AM Latha… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Broadband operation of traveling wave tubes (TWTs) demands the use of nonresonant helix
structure as the slow-wave structure (SWS). But there are certain limitations to the power …

Thermal Analysis of Traveling-Wave Tubes Considering Thermal Contact Resistance

L Liao, L Xu, J Yin, H Wang, X Li… - 2023 24th International …, 2023 - ieeexplore.ieee.org
Thermal contact resistance is a non-negligible problem in the thermal analysis of traveling
wave tubes. If the influence of thermal contact resistance (TCR) is ignored in the thermal …