Chinese Physics C > 2012, Vol. 36 > Issue(8): 750-752 DOI: 10.1088/1674-1137/36/8/011

High efficiency X-band relativistic backward wave oscillator with non-uniform slow wave structures

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Abstract：
Backward wave oscillators (BWOs) driven by intense relativistic electron beams are very efficient means of producing high-power microwaves. However, the efficiency of conventional BWO is lower than 30%. An X-band oversized BWO with non-uniform slow wave structure is designed to improve RF output characteristics. In particle-in-cell simulation, a high power microwave with a power of 8.0 GW and efficiency of 40% is obtained, compared with that of 30% obtained in a conventional relativistic BWO.

References

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Benford J, Swegle J, Schamiloglu E. High Power Microwaves. Boston: Artech House, 1992[2] Carmel Y, Ivers J, Kribel R E, Nation J. Phys. Rev. Lett., 1974, 33: 1278[3] Bugaev S P, Cherepenin V A, Kanavets V I, Klimov A I, Kopenkin A D, Koshelev V I, Popov V A, Slepkov A I. IEEE Trans. Plasma Sci., 1990, 18: 525[4] Abe D K, Carmel Y, Miller S M, Bromborsky A, Levush B, Antonsen T M, Destler W W. IEEE Trans. Plasma Sci., 1998, 26: 591[5] Gunin A V, Klimov A I, Korovin S D, Kurkan I K, Pegel I V, Polevin S D, Roitman A M, Rostov V V, Stepchenko A S, Totmeninov E M. IEEE Trans. Plasma Sci., 1998, 26: 326[6] LI Z H. Appl. Phys. Lett., 2008, 92: 054102[7] LI Z H, QI Y. Phys. Plasmas, 2008, 15: 093104[8] MA Q S, LI Z H, LU C Z, WU Y, JU B Q, YU A M, SU C, JIN X. IEEE Trans. Plasma Sci., 2011, 39: 1201[9] Moreland L D, Schamiloglu E, Lemke R W, Korovin S D, Rostov V V, Roitman A M, Hendricks K J, Spencer T A. IEEE Trans. Plasma Sci., 1994, 22: 554[10] Levush B, Antonsen T M, Vlasov A N, Nusinovich G S, Miller S M, Carmel Y, Granatstein V L, Destler W W, Bromborsky A, Schlesiger C, Abe D K, Ludeking L. IEEE Trans. Plasma Sci., 1996, 24: 843[11] XIAO R Z, CHEN C H, ZHANG X W, SUN J. J. Appl. Phys., 2009, 105: 053306

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WU Yang, XU Zhou, LI Zheng-Hong, MA Qiao-Sheng and TANG Chuan-Xiang. High efficiency X-band relativistic backward wave oscillator with non-uniform slow wave structures[J]. Chinese Physics C, 2012, 36(8): 750-752. doi: 10.1088/1674-1137/36/8/011

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Received: 2011-10-26
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

High efficiency X-band relativistic backward wave oscillator with non-uniform slow wave structures

Received Date:2011-10-26
Accepted Date:1900-01-01
Available Online:2012-08-05

Abstract:Backward wave oscillators (BWOs) driven by intense relativistic electron beams are very efficient means of producing high-power microwaves. However, the efficiency of conventional BWO is lower than 30%. An X-band oversized BWO with non-uniform slow wave structure is designed to improve RF output characteristics. In particle-in-cell simulation, a high power microwave with a power of 8.0 GW and efficiency of 40% is obtained, compared with that of 30% obtained in a conventional relativistic BWO.