摘要
本文对现有的Ka波段毫米波行波管用蓝宝石波导输能窗进行了冷测和仿真，并对现有结构进行了优化设计。仿真结果显示，优化前后Ka波段2GHz工作频带内窗传输能量损耗由2．5％～4％下降到0．4％-0．6％；对金刚石结构输能窗进行了设计和模拟优化，结果显示在工作频带内传输能量损耗为0．4％～0．7％。目前采用镀金工艺的蓝宝石结构输能窗已经在Ka波段500W功率的行波管样管上开展了应用研究。
The paper describes the simulation and cold testing results of a Ka-band high-power sapphire window. The power loss of the window is decreased from 2.5%-4%to 0.4%-0.6% over 2 GHz band width in Ka-band after structure optimization. A diamond power window was also designed and simulated. The power loss was nearly 0.4% -0.7%. Both of them can be met the requirement of 500 W output power of Ka-band TWTs.
出处
《真空电子技术》
2016年第3期58-61,共4页
Vacuum Electronics
关键词
输能窗
蓝宝石
金刚石
毫米波
行波管
Energy transmission window, Sapphire, Diamond, Millimeter, Travelling wave tube
