title: A repetitive S-band long-pulse relativistic backward-wave oscillator.
abstract: This paper presents both numerical and experimental studies of a repetitive S-band long-pulse relativistic backward-wave oscillator. The dispersion relation curve of the main slow-wave structure is given by the numerical calculation. Experimental results show that a 1 GW microwaves with pulse duration of about 100 ns (full width of half magnitude) under 10 Hz repetitive operation mode are obtained. The microwave frequency is 3.6 GHz with the dominant mode of TM(01), and power conversion efficiency is about 20%. The single pulse energy is about 100 J. The experimental results are in good agreement with the simulation ones. By analyzing the experimental phenomenon, we obtain the conclusion that the explosive emission on the surface of the electrodynamics structure in intense radio frequency field mainly leads to the earlier unexpected termination of microwave output.
authors: College of Opotoelectric Science and Engineering, National University of Defence Technology, Changsha, Hunan, People's Republic of China. jzx0210@163.com
authors: Zhenxing
authors: Z
authors: Jin
authors: Jun
authors: J
authors: Zhang
authors: Jianhua
authors: J
authors: Yang
authors: Huihuang
authors: H
authors: Zhong
authors: Baoliang
authors: B
authors: Qian
authors: Ting
authors: T
authors: Shu
authors: Jiande
authors: J
authors: Zhang
authors: Shengyue
authors: S
authors: Zhou
authors: Liurong
authors: L
authors: Xu