Influence of inner conductor on operation band selection in relativistic backward wave oscillator

ge xingjun; zhong huihuang; qian baoliang; zhang jun

Volume 21 Issue 06

Jun. 2009

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gao chun-xia, chen yu-sheng, wang liang-hou. Application of CPML to two-dimension numerical simulation of nuclear electromagnetic pulse from air explosions[J]. High Power Laser and Particle Beams, 2005, 17.

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ge xingjun, zhong huihuang, qian baoliang, et al. Influence of inner conductor on operation band selection in relativistic backward wave oscillator[J]. High Power Laser and Particle Beams, 2009, 21.

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Influence of inner conductor on operation band selection in relativistic backward wave oscillator

1.
College of Optoelectric Science and Engineering,National University of Defense Technology,Changsha 410073,China

Publish Date: 2009-06-15

Abstract

Abstract

A compact gigawatt relativistic backward wave oscillator with coaxial extractor is investigated using the KARAT 2-5 D particle simulation code. Detailed physical interaction pictures of beam and wave in the oscillator are presented. Simulation results show that under the same parameters (electron beam of 700 keV energy and 11.5 kA current, guiding magnatic field of 10 T), an Lband microwave with an average output power of 2.66 GW can be obtained using an inner conductor, and an S-band microwave with an average output power of 2.0 GW for no inner conductor condition. The average power efficienices are about 34% and 24%, respectively．
- high power microwave,
- relativistic backward wave oscillator,
- coaxial extractor,
- slowwave structure,
- wave band selection

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