Particle simulation of the device has been done with electromagnetic code KARAT ,in which structure of the BWO has been optimized and the dependence of microwave efficiency on applied magnetic field has been investigated.

• 用 KARAT软件对谐振反射腔返波管进行了宏观粒子模拟 ,得到了优化的返波管结构参数 ,并研究了外加磁场对输出效率的影响。