一种用于北斗手持式终端的高功率放大器  

A High-Power Power Amplifier for BeiDou Satellite Handsets

作　　者：郑耀华[1] 陈思弟 章国豪 

机构地区：[1]广东工业大学,广州510006

出　　处：《微电子学》2016年第3期293-296,共4页Microelectronics

基　　金：广东省领军人才专项资助项目(400130002)

摘　　要：采用完全对称的双链路功率合成架构,设计了一种应用于北斗手持式终端的高输出功率的功率放大器。采用F类输出匹配网络和自适应偏置电路,使得该功率放大器获得较高的功率附加效率和较好的谐波抑制性能。电路采用InGaP/GaAs HBT工艺流片,并通过搭载基板实现了集成化芯片的研制。芯片测试结果表明,该功率放大器的小信号增益为30dB,1dB压缩点为37dBm,饱和输出功率为38dBm,功率附加效率为45%,具有较好的谐波抑制性能。A high-output-power power amplifier was designed with a symmetric double-link power composite architecture for BeiDou satellite handset-based applications. The power added efficiency and the harmonic rejection capability were improved by utilizing the class F output matching network and the adaptive bias circuits. The integrated chip module of the proposed power amplifier was implemented in an InGaP/GaAs HBT process and mounted in a laminate. The measured results showed that the chip achieved 30 dB of S21, 37 dBm of 1 dB compression point, 38 dBm of saturated output power with 45% of PAE. High performances of harmonic suppression were obtained.

关 键 词：北斗卫星导航系统 功率放大器 异质结双极型晶体管 高功率 高效率 

分 类 号：TN722.75[电子电信—电路与系统] TN323.4