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Based on velocity-modulating model, a nonlinear wave-beam interaction theory for folded-waveguide traveling wave tubes is developed. In this theory, the continuing beam is treated as discrete macro-particles with different initial phases. Then beam-wave interaction and energy exchange are analyzed at each crossing point between beam-tunnel and wave-tunnel. Compared with PIC result, the error of output power predicted by this model is within 10%, and the error of saturated length is within 15%. The results of this model are significant for designing folded-waveguide traveling wave tubes.
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Keywords:
- folded-waveguide /
- traveling wave tube /
- nonlinear beam-wave theory
[1] Bhattacharjee S, Booske J H, Lee W J, Kory C L, Gallagher S, Genack M, Van der Weide D W, Limbach S, Lopez M R, Gilgenbach R M 2009 Amer. Phys. Soc. 47 256
[2] Bhattacharjee S, Kory C L, Lee W J, Gallagher S, Van der Weide D W, Booske J H, Limbach S 2002 Proc. 3rd Int. Vacuum Electronics Conference Sokelyac, U.S., 2002 p26
[3] Dohler G, Gallagher D, Richards J 1993 Proc. Vacuum Electronics Annu. Review p15
[4] Sudeep Bhattacharjee, Booske J H, Kory C L, van der Weide D W, Steve Limbach, Gallagher S, Welter J D, Lopez M R, Gilgenbach R M, Ives R L, Read M E, Ralu Divan, Mancini D C 2004 IEEE Transactions on Plasma Science 32 1002
[5] Pierce J R 1950 Traveling Wave Tubes (New York: Van Nostrand) p50
[6] Rowe J E 1956 IRE Trans. Electron Devices 3 39
[7] Detweiler H K 1968 Michigan Electron Physics 4 433
[8] Dayton Jr. J A, Kosmahl H G, Ramins P, Stankiewicz N 1979 IEEE Trans. Electron Devices 26 1589
[9] MacGregor D M 1986 Ann. Arbor 1 86
[10] Dayton Jr. J A, Kosmahl H G 1979 IEEE Trans. Electron Devices 26 1589
[11] Cooke S J, Mondelli A A, Levush B, Antonsen Jr. T M, Chernin D P, McClure T H, Whaley D R, Basten M 2000 IEEE Trans. Plasma Sci. 28 841
[12] Antonsen T M, Levush B 2008 IEEE Trans. Plasma Sci. 38 113
[13] Yin H R, Gong Y B 2005 Acta Phys. Sin. 53 2434 (in Chinese) [殷海荣, 宫玉彬 2005 53 2434]
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[1] Bhattacharjee S, Booske J H, Lee W J, Kory C L, Gallagher S, Genack M, Van der Weide D W, Limbach S, Lopez M R, Gilgenbach R M 2009 Amer. Phys. Soc. 47 256
[2] Bhattacharjee S, Kory C L, Lee W J, Gallagher S, Van der Weide D W, Booske J H, Limbach S 2002 Proc. 3rd Int. Vacuum Electronics Conference Sokelyac, U.S., 2002 p26
[3] Dohler G, Gallagher D, Richards J 1993 Proc. Vacuum Electronics Annu. Review p15
[4] Sudeep Bhattacharjee, Booske J H, Kory C L, van der Weide D W, Steve Limbach, Gallagher S, Welter J D, Lopez M R, Gilgenbach R M, Ives R L, Read M E, Ralu Divan, Mancini D C 2004 IEEE Transactions on Plasma Science 32 1002
[5] Pierce J R 1950 Traveling Wave Tubes (New York: Van Nostrand) p50
[6] Rowe J E 1956 IRE Trans. Electron Devices 3 39
[7] Detweiler H K 1968 Michigan Electron Physics 4 433
[8] Dayton Jr. J A, Kosmahl H G, Ramins P, Stankiewicz N 1979 IEEE Trans. Electron Devices 26 1589
[9] MacGregor D M 1986 Ann. Arbor 1 86
[10] Dayton Jr. J A, Kosmahl H G 1979 IEEE Trans. Electron Devices 26 1589
[11] Cooke S J, Mondelli A A, Levush B, Antonsen Jr. T M, Chernin D P, McClure T H, Whaley D R, Basten M 2000 IEEE Trans. Plasma Sci. 28 841
[12] Antonsen T M, Levush B 2008 IEEE Trans. Plasma Sci. 38 113
[13] Yin H R, Gong Y B 2005 Acta Phys. Sin. 53 2434 (in Chinese) [殷海荣, 宫玉彬 2005 53 2434]
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