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A novel slow-wave structure (SWS)， the folded double-ridged waveguide structure， is presented and its properties used for wide-band traveling-wave tube (TWT) are investigated. A Ka-band folded double-ridged waveguide TWT is modeled by Magic 3D and the beam-wave interaction is simulated and analyzed. Within the same beam condition， it is concluded from the comparison of folded double-ridged waveguide TWT and folded waveguide TWT that: in the condition of similar gain maximum， the folded double-ridged waveguide TWT has wider bandwidth of which is 22%， and higher electron efficiency of which is 9％.
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Keywords:
- folded double-ridged waveguide /
- high frequency characteristics /
- beam-wave interaction /
- bandwidth
[1] ［1］Wei Y Y， Wang W X， Sun J H， Liu S G 2002 Chin. Phys. 11 277
[2] ［2］Lu Z G， Gong Y B， Wei Y Y， Wang W X 2006 Chin. Phys. 15 2661
[3] ［3］Wei Y Y， Wang W X， Gong Y B， Zhou P 2000 Acta Phys. Sin. 49 949 (in Chinese) ［魏彦玉、王文祥、宫玉彬、周鹏 2000 物理学报 49 949］
[4] ［4］Li J Q， Mo Y L 2006 Acta Phys. Sin. 8 4117
[5] ［5］Haddad G I， Trew R J 2002 IEEE Trans. Microwave Theor. Technol. 50 760
[6] ［6］Bhattacharjee S， Booske J H， Kory C L， Weide D W， Limbach S， Gallagher S， Welter J D， Lopez M R， Gilgenbach R M， Ives R L， Read M E， Divan R， Mancini D C 2004 IEEE Trans. Plasma Sci. 32 1002
[7] ［7］Kory C L， Booske J H， Lee W J， Gallagher S， Weide D W， Limbach S， Bhattacharjee S 2002 IEEE MIT-S Digest 1265
[8] ［8］Hopfer S 1955 IRE Trans. Microwave Theor. Technol. MTT-3， 20
[9] ［9］Cohen S B 1947 Proc. IRE. December 1947 35 783
[10] ］Collin R E 1960 Field Theory of Guided Waves（New York: McGraw Hill）338—346
[11] ］Zhang K Q， Li D J 2001 Electromagnetic Theory for Microwaves and Optoelectronics (Beijing: Publishing House of Electronics Industry) p403(in Chinese) ［张克潜、李德杰 2001 微波与光电子学中的电磁理论 (北京:电子工业出版社) 第403页］
[12] ］Han S T 2004 Ph. D. Dissertation (Seoul:Seoul National University)
[13] ］Han S T, Jang K H, So J K, Kim J L, Shin Y M, Ryskin N R, Chang S S, Park G S 2004 IEEE Transc. Plasma Sci. 32 60
[14] ］Wang W X 2005 Microwave Engineering Technology (Beijing: National Defense Industry Press) p332(in Chinese)［王文祥 2005 微波工程技术 （北京:国防工业出版社）第332页］
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[1] ［1］Wei Y Y， Wang W X， Sun J H， Liu S G 2002 Chin. Phys. 11 277
[2] ［2］Lu Z G， Gong Y B， Wei Y Y， Wang W X 2006 Chin. Phys. 15 2661
[3] ［3］Wei Y Y， Wang W X， Gong Y B， Zhou P 2000 Acta Phys. Sin. 49 949 (in Chinese) ［魏彦玉、王文祥、宫玉彬、周鹏 2000 物理学报 49 949］
[4] ［4］Li J Q， Mo Y L 2006 Acta Phys. Sin. 8 4117
[5] ［5］Haddad G I， Trew R J 2002 IEEE Trans. Microwave Theor. Technol. 50 760
[6] ［6］Bhattacharjee S， Booske J H， Kory C L， Weide D W， Limbach S， Gallagher S， Welter J D， Lopez M R， Gilgenbach R M， Ives R L， Read M E， Divan R， Mancini D C 2004 IEEE Trans. Plasma Sci. 32 1002
[7] ［7］Kory C L， Booske J H， Lee W J， Gallagher S， Weide D W， Limbach S， Bhattacharjee S 2002 IEEE MIT-S Digest 1265
[8] ［8］Hopfer S 1955 IRE Trans. Microwave Theor. Technol. MTT-3， 20
[9] ［9］Cohen S B 1947 Proc. IRE. December 1947 35 783
[10] ］Collin R E 1960 Field Theory of Guided Waves（New York: McGraw Hill）338—346
[11] ］Zhang K Q， Li D J 2001 Electromagnetic Theory for Microwaves and Optoelectronics (Beijing: Publishing House of Electronics Industry) p403(in Chinese) ［张克潜、李德杰 2001 微波与光电子学中的电磁理论 (北京:电子工业出版社) 第403页］
[12] ］Han S T 2004 Ph. D. Dissertation (Seoul:Seoul National University)
[13] ］Han S T, Jang K H, So J K, Kim J L, Shin Y M, Ryskin N R, Chang S S, Park G S 2004 IEEE Transc. Plasma Sci. 32 60
[14] ］Wang W X 2005 Microwave Engineering Technology (Beijing: National Defense Industry Press) p332(in Chinese)［王文祥 2005 微波工程技术 （北京:国防工业出版社）第332页］
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