低噪声放大器通过匹配网络的ESD保护设计

北京大学学报（自然科学版）

低噪声放大器通过匹配网络的ESD保护设计

严伟^1,2,王雨辰^1,3,王振宇¹,时广轶^1,4

1. 北京大学软件与微电子学院, 北京100871; 2. 上海北京大学微电子研究院SHRIME, 上海201203; 3. 中国科学院上海高等研究院, 上海201210; 4. 北京大学深圳研究生院, 深圳518055;

收稿日期:2013-09-27 出版日期:2014-07-20 发布日期:2014-07-20

Design of ESD Protection for Low Noise Amplifier through Matching Network

YAN Wei^1,2, WANG Yuchen^1,3, WANG Zhenyu¹, SHI Guangyi^1,4

1. School of Software and Microelectronics, Peking University, Beijing 100871; 2. Shanghai Research Institute of Microelectronics, Shanghai 201203; 3. Chinese Academy of Science Shanghai Advanced Research Institute, Shanghai 201210; 4. Shenzhen Graduate School of Peking University, Shenzhen 518055;

Received:2013-09-27 Online:2014-07-20 Published:2014-07-20

摘要/Abstract

摘要： 将GaAs PHEMT工艺设计应用于北斗卫星导航的LNA电路, 工作频率为2.45 GHz, 噪声系数为0.55 dB, 并在输入输出的匹配网络上添加ESD保护。通过使用ADS2011进行仿真, 对比分析有ESD保护的电路与没有ESD保护的电路, 得到以下结论: 虽然考虑ESD保护使电路的性能有一些下降, 如增益从16 dB下降到15 dB, 但噪声系数几乎没有变化; 加入ESD保护后, 可以极大地提高电路整体的性能和鲁棒性, 使电路能够很好地抵抗静电干扰。

关键词: 静电泄漏, 低噪声放大器, 阻抗匹配, 鲁棒性

Abstract: A low noise amplifier (LNA) for Beidou navigation system was designed through the standard GaAs pHEMT technology. This circuit had the operating frequency of 2.45 GHz and noise figure of 0.55 dB. ESD protection circuit was added through the input and output matching network. Finally ADS2011 was used to simulate the design. According to the comparison of the circuit with ESD protection and that without ESD protection, the conclusion can be drawn that the circuit with ESD protection will induce some decline of the performance, such as the gain drawn from 16 dB down to 15 dB, but the noise has no change; with the ESD protection, the circuit can be greatly improved in overall performance and robustness, and the circuit has good resistance to electrostatic interference.

Key words: ESD, LNA, matching network, robustness

中图分类号:

TN722
TN03

严伟,王雨辰,王振宇,时广轶. 低噪声放大器通过匹配网络的ESD保护设计[J]. 北京大学学报（自然科学版）.

YAN Wei,WANG Yuchen,WANG Zhenyu,SHI Guangyi. Design of ESD Protection for Low Noise Amplifier through Matching Network[J]. Acta Scientiarum Naturalium Universitatis Pekinensis.

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