Ka波段波导二进制空间功率合成放大器  

Ka-Band Binary Spatial Power Combiner Based on Branch-Waveguide Coupler

作　　者：褚庆昕[1,2] 康智勇[1] 龚志[1] 

机构地区：[1]华南理工大学电子与信息学院,广州510640 [2]空间微波技术国防科技重点实验室,西安710100

出　　处：《微波学报》2012年第1期44-48,共5页Journal of Microwaves

基　　金：重点实验室基金资助项目(9140C5306021008)

摘　　要：研制了一种连续波Ka波段二进制8路空间功率合成放大器,采用全波导分配/合成结构,结合了分支波导耦合器和空间功率合成技术,具有低损耗、高效率、驻波良好和结构紧凑的特点。在31～36GHz频率范围内,增益为17.5～19.5dB,连续饱和输出平均功率Pout≥10W,工作效率在全频段内大于13%,功率合成效率超过72.5%,最大合成效率超过90%。A Ka-band eight-way spatial power combiner, which is based on the branch-waveguide coupler and spatial power technology, is presented. The structure has advantages of low insertion-loss, high power combining efficiency, low VSWR and Compact structure. In the range of 31 - 36GHz band, the measured gain is 17.5 - 19.5dB, and the average sat- urate output power is higher than 10W and the operation efficiency is more than 13%. Moreover, the overall power combining efficiency is above 72.5% and the highest power combining efficiency is over 90%.

关 键 词：功率放大器 空间功率合成器 分支波导耦合器 波导-微带探针 

分 类 号：TN722.75[电子电信—电路与系统]