矩形波导加载双间隙输出腔的粒子模拟

摘要

利用三维PIC软件,建立与速调管双间隙输出腔外接矩形波导耦合装置几何尺寸完全一致的计算模型,对S波段矩形波导输出腔加载做了设计和优化,在工作电压80 kV,束流45 A,工作中心频率为2.9GHz条件下,得到了1.45 MW的输出功率,3 dB带宽达到了12％,经过实验证明,理论仿真计算与实测结果是吻合的.%Three-dimensional PIC software is used to design and optimize the S-band rectangular waveguide loaded output cavity. 1. 45 MW output power at center frequency of 2. 9 GHz and 12% 3 dB bandwidth is achieved which was driven by 80 kV and 45 A electron beam. The experiment shows that the test results are consistent with the theoretical simulation.