jin zhenxing, zhang jun, yang jianhua, et al. Experimental investigation of an S-band longpulse relativistic backward-wave oscillator[J]. High Power Laser and Particle Beams, 2010, 22.
Citation:
jin zhenxing, zhang jun, yang jianhua, et al. Experimental investigation of an S-band longpulse relativistic backward-wave oscillator[J]. High Power Laser and Particle Beams, 2010, 22.
jin zhenxing, zhang jun, yang jianhua, et al. Experimental investigation of an S-band longpulse relativistic backward-wave oscillator[J]. High Power Laser and Particle Beams, 2010, 22.
Citation:
jin zhenxing, zhang jun, yang jianhua, et al. Experimental investigation of an S-band longpulse relativistic backward-wave oscillator[J]. High Power Laser and Particle Beams, 2010, 22.
The main reasons of causing pulse-shortening in high power microwave devices are qualitatively analyzed. Some important rules for designing a long-pulse relativistic backwardwave oscillator(RBWO) are given. According to the above rules and the basic theory of resonant RBWO, an S-band long-pulse RBWO is designed and investigated both numerically and experimentally. Experimental results show that a 2 GW microwave with pulse duration of 90 ns at single shot mode and 1 GW microwaves with pulse duration of 100 ns at 10 Hz repetition rate mode are obtained. The microwave frequency is 3.6 GHz with dominant mode of TM01, and power conversion efficiency is about 20%. The explosive electron emission in intense RF field between the cut-off neck and the first slow-wave structure (SWS) is one of the