CDMA800多载波线性功率放大器的设计  

The Design of CDMA800 Multi-Carrier Linear Power Amplifier

作　　者：邓家胜[1] 黄世震[1] 

机构地区：[1]福州大学福建省微电子与集成电路重点实验室,福州350002

出　　处：《电子器件》2011年第3期282-285,共4页Chinese Journal of Electron Devices

摘　　要：设计了一款6载波的高线性功率放大器。在功放管绝对稳定基础上,利用Loadpu ll和Sourcepu ll技术得到管子的最佳输入输出匹配电路。整个模块采用了4级放大,增益达到了50 dB,最大输出功率42 dBm,互调衰减达到了-47 dBc,ACPR和PAE效率均达到了电信的系统标准。末级采用了双平衡放大以提高功放的线性度。A 6-carrier CDMA800 high linear power amplifier（PA）was designed in this paper.Based on the unconditional stability of the Transistor,4-stage microwave power amplifier was successfully designed.We combined Loadpull and Sourcepull technology to get the best input and output matching circuit.Its maximum output power is over 42 dBm,power gain is 50dB,the IMD3 is less than-47dBc.ACPR and PAE also reached the standard of telecommunication systems.Double-balanced circuit was used in the last stage to improve on the PA＇s linearity.

关 键 词：功率放大器 码分多址 ADS仿真 横向扩散金属氧化物半导体 负载牵引 源牵引 

分 类 号：TN722.75[电子电信—电路与系统]