北斗导航射频功率放大器设计  

Beidou RF power amplifier design based on power combiner

作　　者：高贵虎 苏凯雄[1] 范梦怡 Gao Guihu;Su Kaixiong;Fan Mengyi(College of Physics and Information Engineering, Fuzhou University, Fuzhou 350116;School of Communication and Information Engineering, University of Electronic Science and Technology of China, Chengdu 611731)

机构地区：[1]福州大学物理与信息工程学院,福州350116 [2]电子科技大学信息与通信工程学院,成都611731

出　　处：《电气技术》2018年第12期53-56,共4页Electrical Engineering

基　　金：福建省产学研重大基金资助项目(2015H6014)

摘　　要：本文提出一种改进型北斗导航射频功率放大器解决方案,提高了射频功率放大器的效率和线性度。运用负载牵引和源牵引相结合的方法设计末级功率放大器,运用功率回退技术设计前置级放大器和驱动级放大器,运用共轭匹配法设计级间匹配电路减少插损。经过理论分析、仿真设计和实物调试,验证了方案的合理性,制作出可应用于北斗导航终端产品的高效率、高线性度、大功率的射频功率放大器。This paper proposes an improved BeiDou navigation RF power amplifier solution that improves the efficiency and linearity of the RF power amplifier.The final stage power amplifier is designed using a combination of load traction and source traction.The pre-stage amplifier and driver stage amplifier are designed using power back-off technology.The conjugate matching method is used to design the inter-stage matching circuit to reduce the insertion loss.After theoretical analysis,simulation design and physical debugging,the rationality of the scheme was verified,and a high-efficiency,high-linearity,high-power RF power amplifier that can be applied to Beidou navigation terminal products was produced.

关 键 词：北斗卫星导航系统 射频功率放大器 附加功率效率 增益 

分 类 号：TN722.75[电子电信—电路与系统] TN967.1