Volume 33 Issue 2
Mar.  2024
Turn off MathJax
Article Contents
Xiaoyan ZHAO, Jincheng HU, Haoran ZHANG, et al., “Mode Competition of Low Voltage Backward Wave Oscillator near 500 GHz with Parallel Multi-Beam,” Chinese Journal of Electronics, vol. 33, no. 2, pp. 488–495, 2024 doi: 10.23919/cje.2022.00.003
Citation: Xiaoyan ZHAO, Jincheng HU, Haoran ZHANG, et al., “Mode Competition of Low Voltage Backward Wave Oscillator near 500 GHz with Parallel Multi-Beam,” Chinese Journal of Electronics, vol. 33, no. 2, pp. 488–495, 2024 doi: 10.23919/cje.2022.00.003

Mode Competition of Low Voltage Backward Wave Oscillator near 500 GHz with Parallel Multi-Beam

doi: 10.23919/cje.2022.00.003
More Information
  • Author Bio:

    Xiaoyan ZHAO received the B.E. degree in School of Physics from University of Electronic Science and Technology of China (UESTC). She is currently studying for the M.S. degree in electronic science and technology in the School of Electronic Science and Engineering at University of Electronic Science and Technology of China, mainly engaged in the basic frontier and applied research of terahertz. (Email: 1374889019@qq.com)

    Kaichun ZHANG received the B.S. and M.S. degrees in Sichuan and Ph.D. degree in University of Electronic Science and Technology of China. His research interests inlude terahertz science and technology and its application. (Email: zh.kch@163.com)

  • Corresponding author: Email: zh.kch@163.com
  • Received Date: 2022-01-11
  • Accepted Date: 2022-05-05
  • Available Online: 2022-09-20
  • Publish Date: 2024-03-05
  • A backward wave oscillator with parallel multiple beams and multi-pin slow-wave structure (SWS) operating at the frequency above 500 GHz is studied. Both the cold-cavity dispersion characteristics and CST Particle Studio simulation results reveal that there are obvious mode competition problems in this kind of terahertz source. Considering that the structure of the multi-pin SWS is similar to that of two-dimensional photonic crystals, we introduce the defects of photonic crystal with the property of filtering into the SWS to suppress high-order modes. Furthermore, a detailed study of the effect of suppressing higher-order modes is carried out in the process of changing location and arrangement pattern of the point defects. The stable, single-mode operation of the terahertz source is realized. The simulation results show that the ratio of the output peak power of the higher-order modes to that of the fundamental mode is less than 1.9%. Also, the source can provide the output peak power of 44.8 mW at the frequency of 502.2 GHz in the case of low beam voltage of 4.7 kV.
  • loading
  • [1]
    P. H. Siegel, “Terahertz technology,” IEEE Transactions on Microwave Theory and Techniques, vol. 50, no. 3, pp. 910–928, 2002. doi: 10.1109/22.989974
    [2]
    L. F. Gao, Y. M. Wang, Y. L. Hu, et al., “Study of multiple beam backward wave oscillator based on corrugated waveguide TWT,” in Proceedings of the 2017 Eighteenth International Vacuum Electronics Conference, London, UK, pp.1–2, 2017.
    [3]
    J. F. Federici, B. Schulkin, F. Huang, et al., “THz imaging and sensing for security applications—explosives, weapons and drugs,” Semiconductor Science and Technology, vol. 20, no. 7, pp. S266–S280, 2005. doi: 10.1088/0268-1242/20/7/018
    [4]
    M. Tonouchi, “Cutting-edge terahertz technology,” Nature Photonics, vol. 1, no. 2, pp. 97–105, 2007. doi: 10.1038/nphoton.2007.3
    [5]
    M. Basten, J. Tucek, D. Gallagher, et al., “A multiple electron beam array for a 220 GHz amplifier,” in Proceedings of 2009 IEEE International Vacuum Electronics Conference, Rome, Italy, pp.110–111, 2009.
    [6]
    J. C. Tucek, M. A. Basten, D. A. Gallagher, et al., “A 100 mW, 0.670 THz power module,” in Proceedings of IVEC 2012, Monterey, CA, USA, pp.31–32, 2012.
    [7]
    A. di Carlo, C. Paoloni, F. Brunetti, et al., “The European project OPTHER for the development of a THz tube amplifier,” in Proceedings of 2009 IEEE International Vacuum Electronics Conference, Rome, Italy, pp.100–101, 2009.
    [8]
    X. B. Shi, W. H. Xiong, and C. H. Wen, “A 340GHz 20W staggered double vane traveling wave tube,” in Proceedings of 2019 International Vacuum Electronics Conference, Busan, Korea (South), pp.1–2, 2019.
    [9]
    K. C. Zhang, Z. K. Qi, and Z. L. Yang, “A novel multi-pin rectangular waveguide slow-wave structure based backward wave amplifier at 340 GHz,” Chinese Physics B, vol. 24, no. 7, article no. 079402, 2015. doi: 10.1088/1674-1056/24/7/079402
    [10]
    G. X. Shu, C. Q. Zhou, H. Xiong, et al., “Study of a high-order mode terahertz backward wave ocsillator driven by multiple sheet electron beams,” in Proceedings of the 2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies, Hangzhou, China, pp.1–2, 2018.
    [11]
    K. C. Zhang, Q. Xu, N. Xiong, et al., “Parallel multi-beam and its application in THz band,” in Proceedings of 2019 International Vacuum Electronics Conference, Busan, Korea (South), pp.1–2, 2019.
    [12]
    K. E. Kreischer, R. J. Temkin, H. R. Fetterman, et al., “Multimode oscillation and mode competition in high-frequency gyrotrons,” IEEE Transactions on Microwave Theory and Techniques, vol. 32, no. 5, pp. 481–490, 1984. doi: 10.1109/TMTT.1984.1132711
    [13]
    R. L. Ives, C. Kory, M. Read, et al., “Development of backward-wave oscillators for terahertz applications,” in Proceedings of SPIE 5070, Terahertz for Military and Security Applications, Orlando, FL, USA, pp.71–82, 2003.
    [14]
    C. Inc, CST Studio Suite, 2015.
    [15]
    M. Mineo and C. Paoloni, “Double-corrugated rectangular waveguide slow-wave structure for terahertz vacuum devices,” IEEE Transactions on Electron Devices, vol. 57, no. 11, pp. 3169–3175, 2010. doi: 10.1109/TED.2010.2071876
    [16]
    B. D. McVey, M. A. Basten, J. H. Booske, et al., “Analysis of rectangular waveguide-gratings for amplifier applications,” IEEE Transactions on Microwave Theory and Techniques, vol. 42, no. 6, pp. 995–1003, 1994. doi: 10.1109/22.293568
    [17]
    C. Paoloni and M. Mineo, “Double corrugated waveguide for G-band traveling wave tubes,” IEEE Transactions on Electron Devices, vol. 61, no. 12, pp. 4259–4263, 2014. doi: 10.1109/TED.2014.2364636
    [18]
    X. Z. Li, J. G. Wang, R. Z. Xiao, et al., “Analysis of electromagnetic modes excited in overmoded structure terahertz source,” Physics of Plasmas, vol. 20, no. 8, article no. 083105, 2013. doi: 10.1063/1.4817738
    [19]
    S. H. Kao, C. C. Chiu, K. F. Pao, et al., “Fundamental and harmonic mode competition in the gyromonotron,” in Proceedings of the 2010 8th International Vacuum Electron Sources Conference and Nanocarbon, Nanjing, China, pp.91−92, 2010.
    [20]
    K. F. Pao, T. H. Chang, C. T. Fan, et al., “Dynamics of mode competition in the gyrotron backward-wave oscillator,” Physical Review Letters, vol. 95, no. 18, article no. 185101, 2005. doi: 10.1103/PhysRevLett.95.185101
    [21]
    F. L. Lin, G. X. Qiu, and Y. P. Li, “Characteristic analysis of a two-dimensional photonic crystal and its application in microcavity,” in Proceedings of SPIE 4918, Materials, Devices, and Systems for Display and Lighting, Shanghai, China, pp.352–361, 2002.
    [22]
    S. Y. Yan, F. G. Wu, X. Zhang, et al., “Method of tuning frequency of the defect mode in two-dimensional square photonic crystals,” Modern Physics Letters B, vol. 27, no. 8, article no. 1350054, 2013. doi: 10.1142/S0217984913500541
    [23]
    S. Yamada, Y. Watanabe, Y. Katayama, et al., “Simulation of light propagation in two-dimensional photonic crystals with a point defect by a high-accuracy finite-difference time-domain method,” Journal of Applied Physics, vol. 92, no. 3, pp. 1181–1184, 2002. doi: 10.1063/1.1490157
    [24]
    F. Gadot, A. de Lustrac, J. M. Lourtioz, et al., “High-transmission defect modes in two-dimensional metallic photonic crystals,” Journal of Applied Physics, vol. 85, no. 12, pp. 8499–8501, 1999. doi: 10.1063/1.370634
    [25]
    A. Sugitatsu, T. Asano, and S. Noda, “Line-defect–waveguide laser integrated with a point defect in a two-dimensional photonic crystal slab,” Applied Physics Letters, vol. 86, no. 17, article no. 171106, 2005. doi: 10.1063/1.1920429
    [26]
    S. Li, J. G. Wang, G. Q. Wang, et al., “Theoretical studies on stability and feasibility of 0.34 THz EIK,” Physics of Plasmas, vol. 24, no. 5, article no. 053107, 2017. doi: 10.1063/1.4983621
    [27]
    X. Z. Li, J. G. Wang, J. Sun, et al., “Experimental study on a high-power subterahertz source generated by an overmoded surface wave oscillator with fast startup,” IEEE Transactions on Electron Devices, vol. 60, no. 9, pp. 2931–2935, 2013. doi: 10.1109/TED.2013.2273489
    [28]
    J. G. Wang, G. Q. Wang, D. Y. Wang, et al., “A megawatt-level surface wave oscillator in Y-band with large oversized structure driven by annular relativistic electron beam,” Scientific Reports, vol. 8, no. 1, article no. 6978, 2018. doi: 10.1038/s41598-018-25466-w
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Figures(10)

    Article Metrics

    Article views (337) PDF downloads(33) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return