D. K. Abe, M. T. Ngo, B. Levush, T. M. Antonsen, D. P. Jr et al., A Comparison of L-Band Helix TWT Experiments with CHRISTINE, a 1-D Multifrequency Helix TWT Code, IEEE Transaction On Plasma Science, vol.28, issue.3, 2000.

T. M. Antonsen, A. Jr, B. Mondelli, J. P. Levush, C. K. Verboncoeur et al., Advances in modeling and simulation of vacuum electronic devices, Proceedings of the IEEE, pp.804-839, 1999.
DOI : 10.1109/5.757256

S. Bhattacharjee, C. Marchewka, J. Welter, R. Kowalczyc, C. B. Wilsen et al., Suppression of Third-Order Intermodulation in a Klystron by Third-Order Injection, Physical Review Letters, vol.90, issue.9, p.90, 2003.
DOI : 10.1103/PhysRevLett.90.098303

D. Chernin, T. M. Antonsen, B. Levush, and D. R. Whaley, A three-dimensional multifrequency large signal model for helix traveling wave tubes, IEEE Transactions on Electron Devices, vol.48, issue.1, 2001.
DOI : 10.1109/16.892161

C. C. Cutler, The nature of power saturation in traveling wave tubes. The Bell System Technical Journal, pp.841-876, 1956.

S. K. Datta, P. K. Jain, and B. N. Basu, Control of IM3 distortion in helix TWTs by harmonic injection-an Eulerian hydrodynamical study, IEEE Transactions on Electron Devices, vol.48, issue.1, pp.62-66, 2001.
DOI : 10.1109/16.892168

S. K. Datta, P. K. Jain, M. D. Narayan, and B. N. Basu, Nonlinear Eulerian hydrodynamical analysis of helix traveling-wave tubes for harmonic generation and its control, IEEE Transactions on Electron Devices, vol.46, issue.2, pp.420-426, 1999.
DOI : 10.1109/16.740910

A. S. Gilmour and J. , Principles of Traveling Wave Tubes, 1994.

R. O. Jenkins and R. G. Carter, Design of the pitch profile for high linearity helix TWT amplifiers. ITG-Fachbericht, pp.49-54, 2001.

R. O. Jenkins and R. G. Carter, Design of helix TWTs for optimum linearity. 7th-IEEE-High- Frequency-Postgraduate-Student-Colloquium, 2002.

A. Katz, Linearization : Reducing Distortion in Power Amplifiers, IEEE Microwave magazine, 2001.

Y. Y. Lau, Theory of Intermodulation in a Klystron, IEEE Transaction On Plasma Science, vol.28, issue.3, pp.959-970, 0151.

C. Thomas and . Marshall, Free-Electron Lasers, 1985.

A. Nordsieck, Theory of the Large Signal Behavior of Traveling-Wave Amplifiers, Proceedings of the IRE, pp.630-637, 1953.
DOI : 10.1109/JRPROC.1953.274404

J. R. Pierce, Traveling Wave Tubes, 1950.
DOI : 10.1002/j.1538-7305.1950.tb00465.x

J. E. Rowe, Nonlinear Electron-Wave Interaction Phenomena, 1965.

P. Waller, Modélisation numérique de l'interaction et diagnostic expérimental du faisceau d'´ electrons dans un Tubè a Ondes Progressives spatial, 1999.

M. Wirth, A. Singh, J. Scharer, and J. Booske, Third-order intermodulation reduction by harmonic injection in a TWT amplifier, Third IEEE International Vacuum Electronics Conference, 2002.
DOI : 10.1109/TED.2002.1003754

J. G. Wöhlbier, Nonlinear Distortion and Suppression in Traveling Wave Tubes : Insights and Methods, 2003.

J. G. Wöhlbier and J. H. Booske, Mechanisms for Phase Distortion in a Traveling Wave Tube, 2004.

J. G. Wöhlbier, J. H. Booske, and I. Dobson, New Nonlinear Multifrequency TWT Model, Second IEEE International Vacuum Electronics Conference, 2001.

J. G. Wöhlbier, J. H. Booske, and I. Dobson, The multifrequency spectral eulerian (muse) model of a traveling wave tube, IEEE Transactions on Plasma Science, vol.30, issue.3, 2002.
DOI : 10.1109/TPS.2002.801603

J. G. Wöhlbier, J. H. Booske, and I. Dobson, The physics of harmonic injection in a TWT, Third IEEE International Vacuum Electronics Conference (IEEE Cat. No.02EX524), 2002.
DOI : 10.1109/IVELEC.2002.999379

J. G. Wöhlbier, J. H. Booske, and I. Dobson, On the Physics of Harmonic Injection in a Traveling Wave Tube, IEEE Transactions on Plasma Science, vol.32, issue.3, 2004.
DOI : 10.1109/TPS.2004.828820

J. G. Wöhlbier, M. C. Converse, J. Plouin, A. Rawal, A. Singh et al., LATTE/MUSE Numerical Suite : An Open Source Teaching and Research Code for Traveling Wave Tube Amplifiers, Fourth IEEE International Vacuum Electronics Conference, 2003.