| 提高共源共栅CMOS功率放大器效率的方法 |
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| 引用本文： | 韦小刚,吴明赞,李竹.提高共源共栅CMOS功率放大器效率的方法[J].电子器件,2011,34(2):184-186. |
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| 作者姓名： | 韦小刚 吴明赞 李竹 |
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| 作者单位： | 南京理工大学自动化学院,南京,210094 |
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| 摘 要： | 利用共源共栅电感可以提高共源共栅结构功率放大器的效率。这里描述了一种采用共源共栅电感提高效率的5.25 GHz WLAN的功率放大器的设计方法,使用CMOS工艺设计了两级全差分放大电路,在此基础上设计输入输出匹配网络,然后使用ADS软件进行整体仿真,结果表明在1.8 V电源电压下,电路改进后与改进前相比较,用来表示功率放大器效率的功率附加效率(PAE)提高了两个百分比。最后给出了功放版图。
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| 关 键 词： | 功率放大器 共源共栅电感 效率 CMOS工艺 |
Method of a Efficiency-Boosting by Cascode CMOS Power Amplifiers |
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| WEI Xiaogang,WU Mingzan,LI zhu.Method of a Efficiency-Boosting by Cascode CMOS Power Amplifiers[J].Journal of Electron Devices,2011,34(2):184-186. |
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| Authors: | WEI Xiaogang WU Mingzan LI zhu |
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| Affiliation: | (School of Automation,Nanjing University of Science and Technology,Nanjing 210094,China) |
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| Abstract: | The efficiency of the cascode power amplifier can be boosted by use of cascode-inductance.The design of power amplifier using cascode-inductance for 5.25 GHz WLAN is described.The method is applied to a full differential two-stage amplifier,and then the input-output matching network is designed.Then the global simulation is completed by the ADS software.The results show that,with 1.8 V supply voltage,the power-added efficiency of the improved PA has an increase about two-percent.Finally,the layout of the improved PA is presented. |
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| Keywords: | power amplifier cascode-inductance efficiency CMOS process |
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