广西师范大学学报（自然科学版） ›› 2016, Vol. 34 ›› Issue (3): 7-13.doi: 10.16088/j.issn.1001-6600.2016.03.002

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2.4 GHz CMOS低噪声放大器设计

程远垚, 宋树祥, 蒋品群   

  1. 广西师范大学电子工程学院,广西桂林541004
  • 收稿日期:2016-01-15 出版日期:2016-09-30 发布日期:2018-09-17
  • 通讯作者: 宋树祥(1970—),男,湖南双峰人,广西师范大学教授,博士。E-mail:songshuxiang@mailbox.gxnu.edu.cn
  • 基金资助:
    国家自然科学基金资助项目(61361011);广西自然科学基金资助项目(2014jjAA70058);广西高等学校优秀中青年骨干教师培养工程资助(GXQG022014002)

Design of 2.4 GHz CMOS Low-noise Amplifier

CHENG Yuanyao, SONG Shuxiang, JIANG Pinqun   

  1. College of Electronic Engineering,Guangxi Normal University,Guilin Guangxi 541004,China
  • Received:2016-01-15 Online:2016-09-30 Published:2018-09-17

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摘要： 本文采用TSMC 0.18 μm CMOS工艺,设计了两款可工作在2.4 GHz频率上的窄带低噪声放大器(LNA)。两款LNA的电路结构分别为Cascode电路结构应用电流复用技术,以及应用正体偏置效应的折叠Cascode结构。所设计的两款窄带LNA的仿真结果表明,在2.4 GHz工作频率上,Cascode结构LNA在1.5 V供电电压下电路功耗为4.9 mW,增益为23.5 dB,输入输出反射系数分别为-16.9 dB与-16.3 dB,噪声系数为0.72 dB且IIP3为3.12 dBm;折叠Cascode结构LNA可在0.5 V供电电压下工作,功耗为1.83 mW,增益为23.8 dB,输入输出反射系数分别为-28.2 dB与-24.8 dB,噪声系数为0.62 dB且IIP3为-7.65 dBm,适用于低电压低功耗应用。

关键词: CMOS, 窄带, 低噪声放大器, Cascode, 电流复用, 正体偏置

Abstract: In this paper, two narrowband low-noise amplifiers (LNAs) are designed, which can operate in the 2.4 GHz frequency with TSMC 0.18 μm CMOS technology. One of the circuit structures is Cascode structure with current-reuse technique,and the other is folded Cascode structure with forward-body-bias technique. The simulation results of the designed narrowband LNAs show that,in the 2.4 GHz frequency,Cascode LNA consumes 4.9 mW from a 1.5 V DC supply,gain is 23.5 dB,input and output reflection coefficients are -16.9 dB and -16.3 dB,noise figure is 0.72 dB and IIP3 is 3.12 dBm; and the folded Cascode LNA can operate under 0.5 V DC supply,power consumption is 1.83 mW,gain is 23.8 dB,input and output reflection coefficients are -28.2 dB and -24.8 dB,noise figure is 0.62 dB and IIP3 is -7.65 dBm, which is suitable for low voltage and low power applications.

Key words: CMOS, narrowband, low-noise amplifier, Cascode, current-reuse, forward-body-bias

中图分类号: 

  • TN432
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