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The relativistic magnetron with axial extraction, also known as magnetron with diffraction output (MDO), is an important device for the miniaturization and compaetification of magnetron. It is also promising to be one of the most compact narrow band high power microwave sources. Based on the manners and traits of the MDO directly radiating the quasi-TE11 mode in axial direction, the investigation of the power combination of double MDOs with a horn antenna is carried out. After discussing the combination ways and results, a modified configuration is proposed for improving the radiation directivity. Finally, the results show that when the adjacent double MDOs have an open angle of 7 and the common horn antenna has the parameters of h = 600 mm and r = 340 mm, the mode reflection coefficient of the power combination system is 0.31, the maximum gain is 21.5 dB, the radiation mode is TE11.
[1] Benford J, Sze H, Woo W, Smith R, Harteneck B 1989 Phys. Rev. Lett. 62 969
[2] Woo W, Benford J, Fittinghoff D, Harteneck B, Price D, Smith R, Sze H 1989 J. Appl. Phys. 65 861
[3] Levine J S, Aiello N, Benford J, Harteneck B 1991 J. Appl. Phys. 70 2838
[4] Benford J, Cooksey N J, Levine J S, Smith R R 1993 IEEE Trans. Plasma Sci. 21 388
[5] Kovalev N F, Kol’chugin B D, Nechaev V E, Ofitserov M M, Soluyanov E I, Fuks M I 1977 Sov. Tech. Phys. Lett. 3 430
[6] Kovalev N F, Kolomenski A A, Krastelev E G, Kuznetsov M I, Maine A M, Nechaev E V, Ofitserov M M, Papdichev V A, Petelin M I, Fuks M, Chekanova L N 1980 Sov. Tech. Phys. Lett. 6 197
[7] Fuks M, Schamiloglu E 2002 Proc. SPIE 4720 18
[8] Fuks Mikhail I, Kovalev Nikolay F, Andreev Andrey D, Schamiloglu E 2006 IEEE Trans. Plasma Sci. 34 620
[9] Daimon M, Jiang W 2007 Appl. Phys. Lett. 91 191503
[10] Li W, Liu Y G 2009 J. Appl. Phys. 106 053303
[11] Fuks M, Schamiloglu E 2009 IEEE Pulsed Power Conference Washington D C. pp74–80
[12] Li W, Liu Y G 2010 J. Appl. Phys. 108 113303
[13] Fuks M, Schamiloglu E 2010 IEEE Trans. Plasma Sci. 38 1302
[14] Li W, Liu Y G 2011 Phys. Plasmas 18 023103
[15] Bai X C, Yang J H, Zhang J D 2007 High Power Laser Part. Beams 19 2099 (in Chinese)[白现臣,杨建华, 张建德 2007 强激光与粒子束 19 2099]
[16] Bai X C, Zhang J D, Yang J H 2008 High Power Laser Part. Beams 20 1675 (in Chinese)[白现臣,张建德, 杨建华 2008 强激光与粒子束 20 1675]
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[1] Benford J, Sze H, Woo W, Smith R, Harteneck B 1989 Phys. Rev. Lett. 62 969
[2] Woo W, Benford J, Fittinghoff D, Harteneck B, Price D, Smith R, Sze H 1989 J. Appl. Phys. 65 861
[3] Levine J S, Aiello N, Benford J, Harteneck B 1991 J. Appl. Phys. 70 2838
[4] Benford J, Cooksey N J, Levine J S, Smith R R 1993 IEEE Trans. Plasma Sci. 21 388
[5] Kovalev N F, Kol’chugin B D, Nechaev V E, Ofitserov M M, Soluyanov E I, Fuks M I 1977 Sov. Tech. Phys. Lett. 3 430
[6] Kovalev N F, Kolomenski A A, Krastelev E G, Kuznetsov M I, Maine A M, Nechaev E V, Ofitserov M M, Papdichev V A, Petelin M I, Fuks M, Chekanova L N 1980 Sov. Tech. Phys. Lett. 6 197
[7] Fuks M, Schamiloglu E 2002 Proc. SPIE 4720 18
[8] Fuks Mikhail I, Kovalev Nikolay F, Andreev Andrey D, Schamiloglu E 2006 IEEE Trans. Plasma Sci. 34 620
[9] Daimon M, Jiang W 2007 Appl. Phys. Lett. 91 191503
[10] Li W, Liu Y G 2009 J. Appl. Phys. 106 053303
[11] Fuks M, Schamiloglu E 2009 IEEE Pulsed Power Conference Washington D C. pp74–80
[12] Li W, Liu Y G 2010 J. Appl. Phys. 108 113303
[13] Fuks M, Schamiloglu E 2010 IEEE Trans. Plasma Sci. 38 1302
[14] Li W, Liu Y G 2011 Phys. Plasmas 18 023103
[15] Bai X C, Yang J H, Zhang J D 2007 High Power Laser Part. Beams 19 2099 (in Chinese)[白现臣,杨建华, 张建德 2007 强激光与粒子束 19 2099]
[16] Bai X C, Zhang J D, Yang J H 2008 High Power Laser Part. Beams 20 1675 (in Chinese)[白现臣,张建德, 杨建华 2008 强激光与粒子束 20 1675]
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