[1] Datta S K, Jayashree E V, Veena S D, et al. Analysis of a Chiral Dielectric Supported Broadband Helix Slow-Wave Structure for Millimeter-Wave TWTs [J]. International Journal of Infrared & Millimeter Waves, 2007, 28(9): 779-787.
[2] Berman A, Mahle C E. Nonlinear Phase Shift in Traveling-Wave Tubes as Applied to Multiple Access Communications Satellites [J]. IEEE Transactions on Communication Technology, 1970, 18(1): 37-48.
[3] Chong C K, Davis J A, Borgne R H L, et al. Development of high power Ka-band and Q-band helix-TWTs[C]. IEEE International Vacuum Electronics Conference, Monterey, CA, 2004, 16-17.
[4] Chong C K, Davis J A, Borgne R H L, et al. Development of high-power Ka-band and Q-band helix-TWTs [J]. IEEE Transactions on Electron Devices, 2005, 52(5): 653-659.
[5] Chong C K, Davis J A, Forster J, et al. High power Ka-band and Q-band helix-traveling wave tubes for communications and radar applications[C]. IEEE Military Communications Conference, Atlantic City, NJ, 2005, 1926-1930.
[6] Chong C K, Dawson R C, Forster J W, et al. Development of 500 W Ka-band helix-TWT and 200 W Q-Band helix-TWT for communications applications[C]. IEEE International Vacuum Electronics Conference, Monterey, CA, 2008, 191-192.
[7] Chong C K, Menninger W L. Latest Advancements in High-Power Millimeter-Wave Helix TWTs [J]. IEEE Transactions on Plasma Science, 2010, 38(6): 1227-1238.
[8] Liu M, Cai S, Feng J. Design and simulation of a Q-Band helix TWT[C]. IEEE International Vacuum Electronics Conference, Monterey, CA, 2012, 293-294.
[9] Abe D K, Levush B, Antonsen T M, et al. Design of a linear C-band helix TWT for digital communications experiments using the CHRISTINE suite of large-signal codes [J]. IEEE Transactions on Plasma Science, 2002, 30(3):1053-1062.
[10] Chernin D, Antonsen T M, Levush B, et al. A three-dimensional multifrequency large signal model for helix traveling wave tubes [J]. IEEE Transactions on Electron Devices, 2001, 48(1): 3-11.
[11] Hu Y, Yang Z, Li J, et al. Backward-wave oscillation suppression in high-power broadband helix traveling-wave tubes [J]. IEEE Transactions on Electron Devices, 2011, 58(5):1562-1569.
[12] Li B, Yang Z H, Li J Q, et al. Theory and Design of Microwave-Tube Simulator Suite [J]. IEEE Transactions on Electron Devices, 2009, 56(5):919-927.
[13] Li B, Li J Q, Hu Q, et al. Recent Developments to the Microwave Tube Simulator Suite [J]. IEEE Transactions on Electron Devices, 2014, 61(6):1735-1741.
[14] Rao E V R N, Venkateswarlu D S. One Dimensional Large Signal Analysis for Helix TWTs and Multicavity Klystrons [J]. Iete Journal of Research, 2015, 40(1):11-15.
[15] Srivastava V. 2.5-Dimensional Multi-Signal Large-Signal Analysis of Helix TWTs [J]. Iete Journal of Research, 2015, 49(4):239-246.
[16] Datta S, Jain P, Narayan M R, et al. Nonlinear Eulerian hydrodynamical analysis of helix traveling-wave tubes [J]. IEEE Transactions on Electron Devices, 1998, 45(9):2055-2062.
[17] Paschke F. On the nonlinear behavior of electron-beam devices [J]. RCA Rev, 1957, 18(221-242.
[18] Paschke F. Nonlinear theory of a velocity-modulated electron beam with finite diameter [J]. RCA REVIEW, 1960, 21(1):53-74.
[19] Paschke F. Generation of second harmonic in a velocity-modulated electron beam of finite diameter [J]. RCA REVIEW, 1958, 19(4):617-627.
[20] Datta S K, Jain P K, Basu B N. Third-order saturation effects in a helix traveling-wave tube under Eulerian approximations [J]. Microwave & Optical Technology Letters, 1997, 16(6):345-349.
[21] Datta S. Eulerian analysis for harmonic generation and its control in a helix travelling-wave tube [J]. International journal of electronics, 1998, 85(3): 377-395.
[22] Datta S, Reddy S, Jain P, et al. Nonlinear Eulerian analysis of harmonic generation in traveling-wave tubes [J]. International journal of infrared and millimeter waves, 1999, 20(3):483-490.
[23] Datta S K, Jain P K, Narayan R, et al. Nonlinear Eulerian hydrodynamical analysis of helix traveling-wave tubes for harmonic generation and its control [J]. IEEE Transactions on Electron Devices, 1999, 46(2):420-426.
[24] Datta S K, Jain P K, Rajnarayan M D, et al. A simple Eulerian analysis of IM3 distortion in helix traveling-wave tubes [J]. Microwave & Optical Technology Letters, 1999, 22(6):405-408.
[25] Datta S, Jain P, Basu B. Control of IM3 distortion in helix TWTs by harmonic injection-an Eulerian hydrodynamical study [J]. IEEE Transactions on Electron Devices, 2001, 48(1):62-67.
[26] Datta S K, Kumar L, Basu B N. A simple closed-form formula for backward-wave start-oscillation condition for millimeter-wave helix TWTs [J]. International Journal of Infrared and Millimeter Waves, 2008, 29(6):608-616.
[27] Wohlbier J G, Booske J H, Dobson I. The multifrequency spectral Eulerian (MUSE) model of a traveling wave tube [J]. IEEE Transactions on Plasma Science, 2002, 30(3):1063-1075.
[28] Wohlbier J G, Booske J H. Mechanisms for phase distortion in a traveling wave tube [J]. Physical Review E, 2004, 69(6).
[29] Wohlbier J, Booske J, Dobson I. A new view of phase distortion in a traveling wave tube[C]. IEEE International Conference on Vacuum Electronics, Seoul, South Korea, 2003, 328-329.
[30] Ezura E, Kano T. Measured and theoretical nonlinear phase distortion in traveling-wave tubes [J]. IEEE Transactions on Electron Devices, 2005, 22(10): 890-897.
[31] Gilmour A S. Principles of traveling wave tubes. Norwood[J]. MA:ARTECHHOUSE, INC,1994. 1-390.
[32] Hu Y, Yang Z H, Li J, et al. A nonlinear Eulerian theory with phase expansion for traveling wave tubes[C]. IEEE International Vacuum Electronics Conference, Beijing, China, 2015,1-2.