功率容量大于1GW的组合式旋转关节  

Combined rotary joint with power capability over 1 GW

作　　者：秋实[1,2] 焦永昌[1] 黄惠军[2] 刘国治[2] 张治强[2] 侯青[2] 张庆元[2] 

机构地区：[1]西安电子科技大学天线与微波技术国家重点实验室,西安710071 [2]西北核技术研究所,西安710024

出　　处：《强激光与粒子束》2010年第6期1415-1418,共4页High Power Laser and Particle Beams

基　　金：国家高技术发展计划项目

摘　　要：用耦合波理论分析了过模圆波导中不同模式之间的转换和波导弯曲半径之间的关系,研制了弯曲角度为90°的过模圆波导弯头,设计了一种结构简单的TM01过模圆波导旋转结构。对圆波导弯头和旋转结构的高功率测试证明,它们在X波段功率容量均大于1 GW,微波传输效率均大于93%。在此基础上,提出了一种组合式旋转关节,该关节能够在方位和俯仰上实现360°旋转,可应用于高功率微波的发射天线。The high power microwave（HPM） sources of peak power at GW class have the characteristics of large volume and heavy weight.In the application of HPM directional radiation,the microwave sources are generally static,and with the beam waveguide to adjust the beam pointing,the transmission efficiency is usually 40% to 50%.The radar rotary joint used in the conventional mechanical scanning radar cannot meet the requirements of HPM antenna because of its small power capacity.The relations of conversion between different modes and radii of curvature in bending waveguide were investigated using the coupled wave theory.A waveguide bent 90° and a simple TM01 mode rotary joint were developed and tested.The results indicate that their transmission efficiencies were greater than 93% and the power capacity were greater than 1 GW when they operated in X-band.On this basis,a combined rotary joint was proposed,which was composed of a waveguide bend and a rotary structure.It could be used in the high power microwave transmission in arbitrary directions.

关 键 词：高功率微波 耦合波理论 旋转关节 波导弯头 

分 类 号：TN015[电子电信—物理电子学]