| 5．8GHz／0．18μm低噪声放大器噪声分析 |
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| 引用本文： | 陈建新,王文静,袁志鹏,张弛.5．8GHz／0．18μm低噪声放大器噪声分析[J].北京工业大学学报,2006,32(5):396-399. |
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| 作者姓名： | 陈建新 王文静 袁志鹏 张弛 |
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| 作者单位： | 1. 北京工业大学,电子信息与控制工程学院,北京,100022
2. 北京嵌入式系统重点实验室,北京,100022 |
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| 基金项目： | 中国科学院资助项目;60476034; |
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| 摘 要： | 为了优化设计的5．8 GHz低噪声放大器(LNA)后仿真的各项性能指标,分析了LNA各部分寄生效应对整个电路噪声系数和增益的影响,提出了电路设计和版图设计中应采取的各种措施,使优化后的后仿真结果与前仿真结果基本一致．在考虑MOS管栅电阻和栅感应噪声电流的情况下,后仿真噪声系数为1．6 dB,前向增益为13．7 dB,功耗为8．3 mW,达到了802．11a系统集成的要求．最后给出了LNA版图和后仿真结果．
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| 关 键 词： | 低噪声放大器 无线局域网 集成电路的噪声 电感 CMOS集成电路 |
| 文章编号： | 0254-0037(2006)05-0396-04 |
| 修稿时间： | 2005年9月8日 |
Analyze Noise of 5.8 GHz/0.18 μm CMOS Integrated Low Noise Amplifier |
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| CHEN Jian-xin,WANG Wen-jing,YUAN Zhi-peng,ZHANG Chi.Analyze Noise of 5.8 GHz/0.18 μm CMOS Integrated Low Noise Amplifier[J].Journal of Beijing Polytechnic University,2006,32(5):396-399. |
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| Authors: | CHEN Jian-xin WANG Wen-jing YUAN Zhi-peng ZHANG Chi |
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| Abstract: | To optimize the post simulation result of 5.8 GHz low noise amplifiers( LNA), we analyzed the parasitic effect on gain and noise figure (NF). We took some measures in circuit design and layout design, which improved the post simulation result. The post simulation result is similar to pre simulation. In the simulation, we considered the effect of gate resistor and gate induced current noise. The LNA possesses a 13.7 dB gain with 1.6 dB NF and 8.3 mW. It reached the requirement of 802.11a. At last, we provided the layout and post simulation of the LNA. |
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| Keywords: | low noise amplifier wireless LAN integrated circuit noise inductors amplifier noise CMOS analog integrated circuits |
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