A Research of 140‐GHz Folded Rectangular Groove Waveguide Traveling‐Wave Tube. Issue 4 (1st October 2015)

• Record Type: Journal Article
• Authors: Zhang, Minghao; Wei, Yanyu; Yue, Lingna; Guo, Guo; Wang, Yuanyuan; Shi, Xianbao; Wang, Wenxiang
• Is Part Of: Chinese journal of electronics. Volume 24:Issue 4(2015)
• Page Start: 873
• Page End: 876
• Publication Date: 2015-10-01
• Subjects: Traveling‐wave tube -- Terahertz and millimeter wave -- Slow wave structure; microwave amplifiers -- rectangular waveguides -- slow wave structures; circuit structure -- particle‐in‐cell method -- beam‐wave interaction -- microwave amplification -- traveling wave tube -- slow wave structure -- two‐section folded rectangular groove waveguide -- frequency 136 GHz to 142 GHz -- voltage 18.4 kV -- current 150 mA; Electronics -- Periodicals; Electronics -- China -- Periodicals; Electronics; China; Periodicals; 621.38105
• DOI: 10.1049/cje.2015.10.035
• Languages: English
• ISSNs: 1022-4653

Abstract

Abstract : A two‐section Folded rectangular groove waveguide (FRGWG) Slow wave structure (SWS) Traveling wave tube (TWT) with large dimension of beam tunnel is studied. Compared with the Folded waveguide (FWG) under the same size parameters conditions, the interaction impedance and center frequency of the FRGWG are higher. The advantage is that a beam tunnel with large dimension can be applied to the FRGWG without the influence caused by signal decrease, reflection and oscillation. The microwave amplification capability based on beam‐wave interaction is obtained through the particle‐in‐cell method. This circuit structure can produce an output power of over 100W ranging from 136 to 142GHz when the operation voltage and beam current are set as 18.4kV and 150mA, respectively, for a 95mm long circuit.