Variable gain broadband low noise amplifier using tunable active inductor - 文章详情页

作者：

Deng, Qiangwei (Deng, Qiangwei.) | Zhang, Wanrong (Zhang, Wanrong.) | Jin, Dongyue (Jin, Dongyue.) | Xie, Hongyun (Xie, Hongyun.) | Wang, Na (Wang, Na.)

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EI Scopus

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.　©　2016　IEEE.

关键词：

Low noise amplifiers Noise figure Variable gain amplifiers Millimeter waves Economic and social effects Electric inductors Broadband amplifiers

作者机构：

[ 1 ] [Deng, Qiangwei]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Zhang, Wanrong]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Jin, Dongyue]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing; 100124, China
[ 4 ] [Xie, Hongyun]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing; 100124, China
[ 5 ] [Wang, Na]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing; 100124, China

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