宽带高效径向波导基空间功率合成技术  

Study on Efficient and Broadband Spatial Power Combining Technique on Radial Waveguide

作　　者：骆新江[1,2] 项铁铭[1] 吴爱婷[1] 钱志华[1] 吴景峰[2] 

机构地区：[1]杭州电子科技大学天线与微波技术研究所,浙江杭州310018 [2]中国电子科技集团公司第十三研究所,河北石家庄050051

出　　处：《压电与声光》2010年第2期333-336,共4页Piezoelectrics & Acoustooptics

基　　金：杭州电子科技大学博士启动基金资助项目(KYS045609069);杭州电子科技大学校基金资助项目(KYF051508018);浙江省自然科学基金重点资助项目(KYZ051106005)

摘　　要：为获得振幅和相位一致性较好的空间功率合成结构，对径向波导电磁场分布进行了理论分析，推导出径向波导内存在TM00主模。根据TM00波电磁场的轴向对称性，提出了径向波导功分器的简化电磁模型和等效电路。并由此研制出了性能良好的x波段159w固态功率放大器。在整个x波段，无源合成网络的合成效率都大于88％。含单片微波集成电路芯片（MMIC）的整体合成固态功放合成效率在整个MMIC工作频率范围内（11．9～12．3GHz）大于83％。In the paper, we analyzed the electromagnetic field distribution in radial waveguide to design an excel- lently spatial power combiner with identical magnitude and phase of signals from various ways. The result showed there was a TM00 mode in the radial waveguides. The simple model and the equivalent circuit model for the power dividing/combining circuits had been developed by the symmetric field distribution of TM00, which enabled us to characterize the combining circuits and advance the design efficiency. A power amplifier module with a 159 W power output has been developed and its combining efficiency of bigger than 88~ has been achieved in the passive combi- ning system over the whole X band. The combining efficiency of the entire solid-state power amplifier with the mon- olithic microwave integrated circuit（MMIC）was bigger than 83 %over the MIMIC operation frequency range of 11. 9-12.3GHz.

关 键 词：微波 毫米波 固态功率放大器 空间功率合成 径向波导 

分 类 号：TN626[电子电信—电路与系统]