现代信息科技2024，Vol.8Issue(5)：73-76,80,5.DOI:10.19850/j.cnki.2096-4706.2024.05.016
7～13GHz宽带高效率驱动放大器设计
Design of 7～13 GHz Broadband High-efficiency Driver Amplifier
豆兴昆 1李彬 1谭小媛 1蒋乐 1叶坤1
作者信息
- 1. 中科芯集成电路有限公司,江苏 无锡 214000
- 折叠
摘要
Abstract
A 7～13 GHz microwave monolithic high-efficiency driver amplifier based on 0.25 μm GaAs PHEMT process is designed.The chip uses a two-stage cascade topology,introduces a common source parallel negative feedback structure in the input stage to broaden the working bandwidth.In order to take into account both the output power and efficiency in the output stage,an equivalent RC model is introduced to fit the optimal impedance of the output transistor.Based on the equivalent RC model,high output power and power added efficiency are achieved by using a reactance matching topology to reduce the loss of the output broadband matching network.The simulation curves agree well with the measured curves,and test results show that during the bandwidth from 7 to 13 GHz,the input VSWR is less than 1.5,the output VSWR is less than 1.8,the linear gain is more than 13 dB,the 3 dB compression point output power is greater than 24 dBm,and the power added efficiency is higher than 35%,and the chip area is 1.8 mm×0.8 mm.关键词
砷化镓/微波单片集成电路/驱动放大器/功率附加效率/并联负反馈/阻抗匹配Key words
GaAs/MMIC/driver amplifier/PAE/parallel negative feedback/impedance matching分类
信息技术与安全科学引用本文复制引用
豆兴昆,李彬,谭小媛,蒋乐,叶坤..7～13GHz宽带高效率驱动放大器设计[J].现代信息科技,2024,8(5):73-76,80,5.
