W波段回旋管宽带低损耗输入耦合系统  

Broad band low loss input coupling system in W-band gyrotron

作　　者：孙昊[1,2] 李浩[3] 王峨锋[1,2] 曾旭[1,2] 李安[1,2] 冯进军[1,2] 闫铁昌[1,2] 

机构地区：[1]北京真空电子技术研究所,北京100016 [2]微波电真空国家重点实验室,北京100016 [3]电子科技大学物理电子学院,成都610054

出　　处：《强激光与粒子束》2015年第5期136-139,共4页High Power Laser and Particle Beams

基　　金：国家重点基础研究发展计划项目(2013CB933602)

摘　　要：给出了一种十字交叉型TE□10-TE○01宽带模式转换器的设计原理,同时完成了一套W波段低损耗输入耦合系统的设计方案。根据该设计方案在电磁模拟软件HFSS中建立三维模型进行优化仿真。得到了衰减为0.14dB、最大驻波比为1.388、带宽为10GHz的高性能TE□10-TE○01宽带模式转换器。同时计算得到整套传输系统的衰减小于1dB,远小于采用矩形波导TE10模式的衰减(约15dB),大大提高了传输效率,降低了能量损耗。实际加工得到了一对模式转换器,经测试可得其衰减为1dB左右,整套系统的衰减约为3dB,与矩形波导(衰减约为15dB)相比,有了很大的提高。The design principle of a TE- TE broad band cruciform mode converter was addressed in this paper, and the scheme of a set of W band low loss input coupling system was presented. According to this scheme, the 3 D model was optimized and simulated by HFSS. A TE - TE broad handmode converter with a loss of less than 0.14 dB, a maximum VSWR of 1. 388, and a band width of 10 GHz was obtained through simulation. For the whole system, a calculated loss of less than 1 dB, which was far less than that of TEl0 mode in the rectangle waveguide（about 15 dB）, was given. It leaded to the increase of the transmis- sion efficiency and reduction of the energy loss. A pair of manufactured mode converters was tested in the experiment, and the loss was about 1 dB. So the loss of the whole system was equal to 3 dB, which was greatly improved compared with the loss in the rectangle waveguide.

关 键 词：回旋行波管 低损耗输入耦合系统 模式转换器 

分 类 号：TN129[电子电信—物理电子学]