Study on W-Band 2.8kW Sheet-Beam Three-Slot Staggered-Ladder Coupled-Cavity Traveling-Wave Tube

Title:Study on W-Band 2.8kW Sheet-Beam Three-Slot Staggered-Ladder Coupled-Cavity Traveling-Wave Tube

Volume: 11 Issue: 2

Author(s): Hongwei Liu*, Zhanliang Wang, Yubin Gong, Yanyu Wei, Zhaoyun Duan, Huarong Gong, Xiong Xu and Jinjun Feng

Affiliation:

• School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu,China

Keywords: W-band, traveling-wave tube, sheet electron beam, three-slot staggered-ladder, slow-wave structure, small tunable periodic cusped magnet.

Abstract: Background: A W-band Sheet Electron Beam (SEB) Traveling-Wave Tube (TWT) based on Three-Slot Staggered-Ladder (TSTL) Coupled-Cavity Slow-Wave Structure (CC-SWS) is proposed in this paper.

Methods: The high-frequency characteristics of TSTL CC-SWS are analyzed in detail. Well-matched input/output couplers that solve the problem of energy coupling between the SWS and the external circuit are designed. In addition, a Small Tunable Periodic Cusped Magnet (STPCM) system is used to focus the SEB, which is predicted to exhibit 100% beam transmission efficiency.

Finally, the beam-wave interaction was studied with CST particle studio.

Results: The results show that the SEB TWT can produce output power over 1.27kW within the bandwidth ranging from 90GHz to 99.5GHz, and the maximum output power is 2.8kW at 96.5GHz, corresponding to the maximum electronic efficiency of 11%.

Cite this article as:

Liu Hongwei *, Wang Zhanliang , Gong Yubin , Wei Yanyu , Duan Zhaoyun , Gong Huarong , Xu Xiong and Feng Jinjun , Study on W-Band 2.8kW Sheet-Beam Three-Slot Staggered-Ladder Coupled-Cavity Traveling-Wave Tube, Recent Advances in Electrical & Electronic Engineering 2018; 11 (2) . https://dx.doi.org/10.2174/2352096511666180117143448

DOI https://dx.doi.org/10.2174/2352096511666180117143448	Print ISSN 2352-0965
Publisher Name Bentham Science Publisher	Online ISSN 2352-0973