5.8 GHz CMOS全集成低噪声放大器设计

广西师范大学学报（自然科学版） ›› 2013, Vol. 31 ›› Issue (2): 13-18.

5.8 GHz CMOS全集成低噪声放大器设计

张尚坤, 宋树祥

广西师范大学电子工程学院,广西桂林541004

收稿日期:2013-01-15 出版日期:2013-06-20 发布日期:2018-11-26
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@gxnu.edu.cn
基金资助:
国家自然科学基金资助项目(61061006)

Design of a 5.8 GHz and Fully Integrated CMOS Low Noise Amplifier

ZHANG Shang-kun, SONG Shu-xiang

College of Electronic Engineering,Guangxi Normal University,Guilin Guangxi 541004,China

Received:2013-01-15 Online:2013-06-20 Published:2018-11-26

摘要/Abstract

摘要： 针对目前在LNA设计中存在需要在任意给定的功耗条件下噪声和输入阻抗同步匹配的问题,本文采用TSMC 0.18 μm RF工艺,通过利用共源共栅结构和功耗受限下噪声和阻抗同步匹配技术(PCSNIM),提出了一个可支持IEEE 802.11a无线局域网(WLAN)标准的5.8 GHz CMOS低噪声放大器,在中心频率处所提出的低噪放大器的噪声系数(NF)只有0.972 dB。仿真结果表明:在1.8 V供电电压下LNA的功耗为6.4 mW,增益可达17.04 dB,输入1 dB压缩点(P1 dB)约为-21.22 dBm,同时具有良好的输入输出匹配特性。

关键词: 低噪声放大器, 噪声系数, 功耗

Abstract: In view of the problem of needing synchronous matching of noise and input impedance in the LNA design in any given power,in this paper,a 5.8 Ghz CMOS low noise amplifier which supports the IEEE 802.11a WLAN standards is presented utilizing a standard TSMC 0.18 μm RF process by using the cascade structure and power-constrained simultaneous noise and input matching technique(PCSNIM).The noise figure (NF) of the proposed LNA at the central frequencyis only 0.972 dB.The simulation results demonstrate that the LNA has a power consumption of 6.4 mW,a gain of 17.04 dB,and an input 1 dB compression point (P1 dB) about -21.22 dBm while at 1.8 V supply voltage.The proposed LNA also achievesgood input and output match performance.

Key words: low noise amplifier, noise figure, power consumption

中图分类号:

TN432

张尚坤, 宋树祥. 5.8 GHz CMOS全集成低噪声放大器设计[J]. 广西师范大学学报（自然科学版）, 2013, 31(2): 13-18.

ZHANG Shang-kun, SONG Shu-xiang. Design of a 5.8 GHz and Fully Integrated CMOS Low Noise Amplifier[J]. Journal of Guangxi Normal University(Natural Science Edition), 2013, 31(2): 13-18.

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