偏置电路对功率放大器性能的影响  

The Effect of DC-bias Circuit on the Performance of Power Amplifier

作　　者：崔浩[1] 罗维玲[1] 何兵哲[1] 胡文宽[1] 陈炽[1] 

机构地区：[1]中国空间技术研究院西安分院,西安710000

出　　处：《空间电子技术》2013年第1期96-98,共3页Space Electronic Technology

摘　　要：文章首先给出偏置电路影响功率放大器性能的理论依据,然后采用3种不同的偏置电路,得出了3种不同的试验结果。试验结果表明,偏置电路会对放大器的输出功率、线性度、三阶交调产生影响。最后给出了一种比较好的偏置电路和元件取值。In the first section of this paper,the theory about effect of DC-Bias Circuit on the performance of power am- plifier was proposed. Three different dc bias circuits were designed, and the corresponding results were analyzed. The results show that DC-Bias Circuits have an effect on the output power,linear performance and third order Intermodulation. Finally, the better design of DC-Bias Circuit was achieved.

关 键 词：偏置电路 功率放大器 输出功率 三阶交调 

分 类 号：TN722.75[电子电信—电路与系统]