摘要
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 （～0.1T）. 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.
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 （～0.1T）. 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.
基金
Supported by National Natural Science Foundation of China (61271109)
