摘要
本文实现了一款GaN宽带Doherty功率放大器.基于CCGH40025管芯,在ADS(Advanced Design system)中进行微带线建模与模型的电磁场仿真.利用双阻抗匹配的原理,使用ADS中随机优化以及梯度优化的方法,进行微带线的优化仿真,设计一款工作在3.3~3.9GHz的Doherty宽带功率放大器.仿真实现最大输出功率48dBm,效率65%以上,功率回退6dB,输出功率42dBm,效率47%以上.这种设计方法可应用于宽带射频通信系统中.
In this paper,a GaN broadband Doherty power amplifier is designed.A broadband power amplifier of 3.3-3.9 GHz based on CGH40025 chip model is designed,with modeling and electromagnetic field simulation of micro-strip in ADS（Advanced Design system）.Using random optimization and gradient optimization method in the ADS with the principle of double impedance matching.The simulation result show that the broadband power amplifier module have a good performance in the wide band of 3.3-3.9 GHz,the gain is 12-13 dB,the maximum output power is 47.7 dBm,and the efficiency is above 65%,the power is back 6 dB,the output power is 41.7 dBm,and the efficiency is above 47%.The design method can be applied to the broadband radio frequency communication system.
作者
王浩全
李志强
WANG Hao-quan;LI Zhi-qiang(Beijing Key Laboratory of Radio Frequency IC Technology for Next Generation Communications,Institute of Microelectronics of Chinese Academy of Sciences,Beijing 100029,China;R＆D Center of HealthCare Electronics,Institute of Microelectronics of Chinese Academy of Sciences,Beijing 100029,China;School of Electronic,Electrical and Communication Engineering,University of Chinese Academy of Sciences,Beijing 101400,China)
出处
《微电子学与计算机》
CSCD
北大核心
2018年第8期97-100,共4页
Microelectronics & Computer
基金
国家自然科学基金项目(61404166)
湖北省中科院科技合作项目(5G毫米波小基站发射前端芯片组与设备原型研发)
