Variable Gain Broadband Low Noise Amplifier Using Tunable Active Inductor

被引：0
|
作者：
Deng, Qiangwei [1 ]
Zhang, Wanrong [1 ]
Jin, Dongyue [1 ]
Xie, Hongyun [1 ]
Wang, Na [1 ]
机构：
[1] Beijing Univ Technol, Coll Elect Informat & Control Engn, Beijing 100124, Peoples R China
来源：
9TH INTERNATIONAL CONFERENCE ON MICROWAVE AND MILLIMETER WAVE TECHNOLOGY PROCEEDINGS, VOL. 1, (ICMMT 2016) | 2016年
关键词：
LOW-POWER; VGA; LNA;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The variable gain broadband low noise amplifier (LNA) is presented in this paper using tunable active inductor(TAI). The active inductor is adopted instead of feedback spiral inductor in the intermediate amplification stage to achieve variable gain and extend bandwidth. Furthermore, a high gain push-pull inverter with the feedback resistor is employed to realize a good trade-off between wideband matching and low noise figure(NF) in the input stage. At output stage, a source follower structure is adopted to achieve good output impedance matching. The LNA is verified by Advanced Design System (ADS). The results show that over the range of 0.5GHz-5.5GHz, the gain can be tuned from 15.5dB to 19.6dB, input and output return loss are better than -10dB, the NF is less than 5 dB, and the total chip size is reduced dramatically.
引用
收藏
页码：114 / 116
页数：3
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