Demonstration of a PCM-Focused Sheet Beam TWT Amplifier at G-Band

C Zhang, P Pan, J Cai, X Chen, H Tian… - … on Electron Devices, 2023 - ieeexplore.ieee.org
A sheet beam traveling-wave tube (TWT) amplifier focused by periodically cusped-magnetic
(PCM) fields has been successfully developed. The amplifier produces~ 115 W of peak …

Self-mode-locking operation regimes in a TWT with low-level delayed feedback

RM Rozental, AA Ivanov, DA Sidorov… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
We study the time-domain system of equations of a traveling wave tube (TWT) with delayed
feedback. Under conditions of low-depth feedback, we find the self-mode-locking operation …

Ultra-wideband flattened design enabling the development of sheet beam traveling wave tubes in the SHF band

Y Wan, J Wang, X Li, Z Dai, Q Zheng… - … on Electron Devices, 2023 - ieeexplore.ieee.org
Considerable progress has been made in the development of sheet beam traveling-wave
tubes (SB-TWTs) that operate in the millimeter-wave and terahertz domains. However …

Study of a Terahertz-band Integrated Dual-Sheet Beam Weak Pole Offset Periodic Cusped Magnetic Focusing Structure

G Shu, S Ma, J Liao, J Tang, X Xie… - IEEE Electron …, 2024 - ieeexplore.ieee.org
The long-distance and stable transmission of multiple sheet electron beams is one of the
most critical challenges hindering the development of integrated multiple sheet electron …

Design and experiments of the sheet electron beam transport with periodic cusped magnetic focusing for terahertz traveling-wave tubes

C Zhang, P Pan, X Chen, S Su, B Song, Y Li, S Lü… - Electronics, 2021 - mdpi.com
The successful transport of a sheet electron beam under the periodic cusped magnet (PCM)
focusing at the terahertz frequencies is reported. The sheet beam with a current density of …

Cosimulation and cold test verification of a 220-GHz sheet beam traveling-wave tube amplifier

G Shu, H Pan, Q Li, X Xie, S Ma, J Tang… - … on Electron Devices, 2023 - ieeexplore.ieee.org
The design and cold test verification for a 220-GHz sheet beam traveling-wave tube (SB-
TWT) are presented in this article. Although there are numerous studies regarding the …

A new approach of using low magnetic field to focus SEB

PC Yin, J Xu, LN Yue, SZ Fang, RC Yang, JJ Luo… - Physics of …, 2021 - pubs.aip.org
The transport of sheet electron beam (SEB) is of critical importance for the success of a
number of high-power millimeter wave and terahertz vacuum devices. In this paper, the …

Investigation of high interaction efficiency of sheet beam TWT based on all-period optimization and beam bunching analysis

Q Liu, J Wang, Z Liu, Y Wan, X Li, K Fu… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
This article explores an extremely high beam–wave interaction (BWI) efficiency technology
of sheet beam traveling wave tubes (SBTWTs). An all-period phase velocity tapering …

Demonstration of an Ultracompact, High-Isolation Power Coupler for W-Band Sheet Beam Traveling Wave Tubes

Y Wan, J Wang, X Li, Z Dai, W Jiang… - … on Electron Devices, 2022 - ieeexplore.ieee.org
The emerging sheet beam devices have become a research hotspot in the field of vacuum
electronics due to their excellent performance in the millimeter-wave and even terahertz …

Demonstration of an Even Symmetric Overmoded Coupler for Power Measurement in Sheet Beam Traveling-Wave Tubes

Z Dai, J Wang, Y Wan, X Li, Q Zheng… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
This study proposes a solution to the lack of effective measurement methods in hot tests for
high-power sheet beam traveling-wave tubes (SB-TWTs) with ultra-wideband transmission …