基于HBT工艺的北斗手持终端功率放大器设计  

Design of HBT Power Amplifier for Beidou Satellite Mobile Communication

作　　者：陈思弟 郑耀华[1] 章国豪 

机构地区：[1]广东工业大学,广州510006

出　　处：《固体电子学研究与进展》2015年第4期334-339,共6页Research & Progress of SSE

摘　　要：针对北斗卫星通信手持终端,基于InGaP/GaAs HBT工艺,采用功率合成的方式设计了两种输出功率为5 W的功率放大器,其中一种采用两路完全对称的功率放大器合成,另一种在两路功率放大器的输出端引入了90°的相位差。实测结果表明,在输出端引入90°相移的功率放大器获得了极好的抗烧毁能力,其在负载开路情况下仍能可靠工作。该功率放大器的功率附加效率为43%,增益为30dB,饱和输出功率为37.8dBm。A power amplifier for Beidou satellite mobile communication was presented.Based on the power combination,two types of power amplifiers were designed using InGaP/HBT technology.One was combined with two identical power amplifiers and for the other one there exited90°phase difference in the output match network.It is experimentally shown that the power amplifier with 90°phase difference in output match network has excellent ruggedness and operates normally even though the load is open.The PAEof this kind of power amplifier is 43% and 30 dB of the gain and 37.8dBm of the Psatare also achieved.

关 键 词：北斗卫星通信 功率放大器 可靠性 磷化铟镓/砷化镓异质结双极型晶体管 

分 类 号：TN722.75[电子电信—电路与系统] TN323