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Study of superradiance based on a low-voltagebackward wave oscillator
Authors:WU Jie  FANG Zhi-Cong  XIE Hong-Quan  LI Zheng-Hong
Abstract:According to the small size requirement for wide-band high-power microwave radiation, a superradiance backward wave oscillator (BWO) is proposed to generate such high-power microwave radiation with a low voltage (~20 kV) pulse power supply and low guiding magnet field (~0.1 T). In order to get a high-efficiency C-band superradiance BWO with a low beam voltage and a low guiding magnet field, the mechanism of superradiance in a BWO is explored in particle-in-cell simulation. With the oversized structure, the simulation shows that a microwave power of 405 kW with a frequency of 5.6 GHz and a spectrum width of 500 MHz can be obtained with a voltage of 23 kV and magnetic field of 0.1 T.
Keywords:
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