Ka频段波导内空间功率合成功率放大器设计  

Design of a Ka-band Spatial Power Combined Amplifier Based on Waveguide

作　　者：卫少卿 陈冠军 WEI Shaoqing;CHEN Guanjun(The 54th Research Institute of CETC, Shijiazhuang 050081, China)

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电工程》2018年第6期497-501,共5页Radio Engineering

基　　金：装备预研领域基金资助项目(61402090101)

摘　　要：针对毫米波固态功率放大器中涉及的功率合成技术,提出了一种波导内H面3路功分器以及2×2鳍线叠层式空间功率分配/合成器的实现方法,基于这2种结构设计了一种12路波导内空间功率合成功率放大器,具有体积小、插损低和输入输出驻波好的优点。该放大器对12片4.5 W的功放芯片进行功率合成,在33.5~35.5 GHz频段内输出功率大于45 W,功率合成效率大于79.6%。For the technology of power combining in millimeter-wave solid-state amplifier,an implementation method is presentedwhich uses an H-plane three-way power divider based on waveguide and a 2×2 fin-line spatial power divider / combiner,and then a 12-way spatial power combined amplifier is designed based on the two kinds of structures. The amplifier has such advantages as small size,low loss,good input and output VSWR. The amplifier has 12 pieces of 4.5 W chips,and the output power is greater than 45 W at the band of 33.5～ 35.5 GHz,power combining efficiency is more than 79.6%.

关 键 词：KA频段 3路功分器 鳍线 空间功率合成 

分 类 号：TN73[电子电信—电路与系统]