3mm回旋行波管高频窗的设计  

Design for High-frequency Millimeter-Wave Window of a 3mm Gyrotron Traveling-Wave Tube

作　　者：张新仁[1] 刘濮鲲[1,2] 徐寿喜[2] 

机构地区：[1]电子科技大学物理电子学院,成都610054 [2]中国科学院电子学研究所,北京100080

出　　处：《微波学报》2008年第5期48-52,共5页Journal of Microwaves

基　　金：国家自然科学基金(60571039)

摘　　要：利用等效电路理论和网络传输矩阵理论设计出了可承受平均功率10kW以上的3mm回旋行波管的输入输出窗。并用三维高频结构仿真软件HFSS和CST-MW S模拟结果与数值计算结果进行了比较,三者吻合得很好。在W波段驻波系数小于1.2的情况下,得到盒型窗输出带宽12.4GHz(13.2%);三层介质矩形窗输出带宽为18.8GHz(20%)。本文所推导的理论结果可直接运用于更高频段高频窗的设计中。A high-frequency millimeter-wave window, which applied to the 3 mm gyrotron Traveling Wave Tubes and is capable of passing average power outputs of more than 10kW, was designed by using microwave equivalent circuit and transfer matrix. Three-dimensional simulation software HFSS and CST-MWS were used to simulate and investigate it, The simulation results agreed with each other very well. The results show that, when VSWR 〈 1.2 in the W-band, the pillbox window＇ s bandwidth can reach about 12.4GHz, and it reaches about 18.8GHz for the three-layer ceramic material rectangle waveguide window. The ideas and the theory can be easily applied to those in higher frequency.

关 键 词：3mm 回旋行波管 高频窗 

分 类 号：TN124[电子电信—物理电子学] TS252.55[轻工技术与工程—农产品加工及贮藏工程]