A high efficient relativistic backward wave oscillator with coaxial nonuniform slow-wave structure and depth-tunable extractor

被引：19
作者：
Ge, Xingjun [1 ]
Zhong, Huihuang [1 ]
Zhang, Jun [1 ]
Qian, Baoliang [1 ]
机构：
[1] Natl Univ Def Technol, Coll Optoelect Sci & Engn, Changsha 410073, Hunan, Peoples R China
来源：
PHYSICS OF PLASMAS | 2013年 / 20卷 / 02期
关键词：
POWER;
D O I：
10.1063/1.4776711
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
A high efficient relativistic backward wave oscillator with coaxial nonuniform slow-wave structures (SWSs) and depth-tunable extractor is presented. The physical mechanism to increase the power efficiency is investigated theoretically and experimentally. It is shown that the nonuniform SWSs, the guiding magnetic field distribution, and the coaxial extractor depth play key roles in the enhancement of the beam-wave power conversion efficiency. The experimental results show that a 1.609 GHz, 2.3 GW microwave can be generated when the diode voltage is 890 kV and the beam current is 7.7 kA. The corresponding power efficiency reaches 33.6%. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4776711]
引用
收藏
页数：4
相关论文
共 19 条
[1]   INVESTIGATION OF A MILLIMETER-WAVELENGHT-RANGE RELATIVISTIC DIFFRACTION GENERATOR [J].
BUGAEV, SP ;
CHEREPENIN, VA ;
KANAVETS, VI ;
KOSHELEV, VI ;
POPOV, VA ;
VLASOV, AN .
IEEE TRANSACTIONS ON PLASMA SCIENCE, 1990, 18 (03) :518-524
[2]   A repetitive X-band relativistic backward-wave oscillator [J].
Chen, CH ;
Liu, GZ ;
Huang, WH ;
Song, ZM ;
Fan, JP ;
Wang, HJ .
IEEE TRANSACTIONS ON PLASMA SCIENCE, 2002, 30 (03) :1108-1111
[3]   Excitation of electromagnetic waves in a plasma-filled backward wave oscillator in the Ku region [J].
Choyal, Y ;
Maheshwari, KP .
PHYSICS OF PLASMAS, 1998, 5 (06) :2442-2446
[4]   Asymmetric-mode competition in a relativistic backward wave oscillator with a coaxial slow-wave structure [J].
Ge, Xingjun ;
Zhong, Huihuang ;
Qian, Baoliang ;
Zhang, Jun ;
Liu, Lie ;
Gao, Liang ;
Yuan, Chengwei ;
He, Juntao .
APPLIED PHYSICS LETTERS, 2010, 97 (24)
[5]   An L-band coaxial relativistic backward wave oscillator with mechanical frequency tunability [J].
Ge, Xingjun ;
Zhong, Huihuang ;
Qian, Baoliang ;
Zhang, Jun ;
Gao, Liang ;
Jin, Zhenxing ;
Fan, Yuwei ;
Yang, Jianhua .
APPLIED PHYSICS LETTERS, 2010, 97 (10)
[6]   Dispersive characteristics and longitudinal resonance properties in a relativistic backward wave oscillator with the coaxial arbitrary-profile slow-wave structure [J].
Ge, Xingjun ;
Zhong, Huihuang ;
Qian, Baoliang ;
Zhang, Jun ;
Fan, Yuwei ;
Shu, Ting ;
Liu, Jinliang .
PHYSICS OF PLASMAS, 2009, 16 (11) :113104
[7]   Relativistic X-Band BWO with 3-GW output power [J].
Gunin, AV ;
Klimov, AI ;
Korovin, SD ;
Kurkan, IK ;
Pegel, IV ;
Polevin, SD ;
Roitman, AM ;
Rostov, VV ;
Stepchenko, AS ;
Totmeninov, EM .
IEEE TRANSACTIONS ON PLASMA SCIENCE, 1998, 26 (03) :326-331
[8]   A multigigawatt X-band relativistic backward wave oscillator with a modulating resonant reflector [J].
Klimov, A. I. ;
Kurkan, I. K. ;
Polevin, S. D. ;
Rostov, V. V. ;
Tot'meninov, E. M. .
TECHNICAL PHYSICS LETTERS, 2008, 34 (03) :235-237
[9]  
Korovin S.D., 2002, P 14 INT C HIGH POW, P255
[10]   Investigation of an oversized backward wave oscillator as a high power microwave generator [J].
Li, Zheng-Hong .
APPLIED PHYSICS LETTERS, 2008, 92 (05)
12