高效率6米高功率天线设计  

The Design of High Efficiency HPM 6-Meter Antenna

作　　者：张琳[1] 田唯人[1] 

机构地区：[1]中国电子科技集团公司第39研究所测控事业部,西安710065

出　　处：《测控与通信》2017年第2期1-6,共6页

摘　　要：高功率天线首次采用了波束波导平面波馈电方式的标准双抛物面反射器设计，解决2GW的极高功率容量传输／发射问题，设计增益为52．65dB，测量增益满足系统的设计要求。后经TICRA公司的GRASP高频仿真软件计算发现BWG远距离传输造成副反射器照射锥销变大，使得天线口径利用效率下降，同时反射镜的安装因素导致增益下降。为此把BWG输出的平面波场分布作为输入函数，首次对反射面进行平面波照射的赋型设计，提高口径效率，将6m高能微波天线的增益提高了1dB以上。The design of standdard dual-parabolic reflector feeded by beam waveguide plane wave is applied to the 6-meter HPM antenna for the first time to slove the problem of extremely high power capacity transmission of 2 GW. To aviod air breakdowns, the design gain is 52.65 dB, and the measured gain meets the system design requirements.After the validation by using the high frequency simulation software GRASP, the increase of BWG subreflector irradiation taper pin which caused by long-distance transmission led to the decrease of the antenna aperture utilization efficiency, while the istallation factors of the mirror led to the decrease of the gain. Therefore, the plane wave field distribution of the BWG output is taken as the input function to form the reflector irradiated by a plane wave to improve the aperture efficiency.Then, the gain of 6-meter HPM antenna is improved more than 1 dB.

关 键 词：高功率 BWG 平面波照射 反射器赋型 

分 类 号：TN82[电子电信—信息与通信工程]