应用于IEEE 802.11 ac的高线性InGaP/GaAs HBT功率放大器  

A High-linearity InGaP/GaAs HBT Power Amplifier for IEEE 802.11ac Applications

作　　者：郑耀华[1] 郑瑞青 林俊明[1] 陈思弟 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329-333,共5页Research & Progress of SSE

摘　　要：针对应用于无线局域网IEEE 802.11ac标准的终端,通过采用自适应线性化偏置和宽带匹配技术,设计一种高线性度的InGaP/GaAs HBT功率放大器。芯片测试结果表明,在4.9~5.9GHz的工作频段内,该功率放大器小信号增益超过26.2dB,1dB压缩点输出功率超过29.1dBm,实现了在64正交振幅调制-正交频分复用输入信号下,误差矢量幅度在3%时超过19dBm的线性输出功率。A high-linearity InGaP/GaAs HBT power amplifier for the IEEE 802.11 ac wireless-LAN applications was developed with the adaptive bias circuit and the broadband matching technique.From 4.9GHz to 5.9GHz,the measured results of the chip showed that S21 over26.8dB,output power at 1dB compression point over 29.1dBm,and an error vector magnitude of 3% at an average output power of 19 dBm with 64-QAM-OFDM signals was exhibited.

关 键 词：IEEE 802.11ac 功率放大器 异质结双极型晶体管 高线性 误差向量幅度 

分 类 号：TN722.75[电子电信—电路与系统] TN322.8