A low power dual-band variable gain low noise amplifier - 文章详情页

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A　low　power　dual-band　variable　gain　low　noise　amplifier　(DB-VGLNA)　with　multiple　tunable　gain　control　terminals　was　designed　and　implemented.　In　the　proposed　DB-VGLNA,　a　serial-parallel　resonant　filter　network　was　used　to　achieve　dual-band　input　impedance　matching.　In　order　to　enhance　gain　tunability,　three　gain-adjustment　stages,　i.e.　cascode　amplifier　with　active　inductor　as　variable　load,　common-gate　amplifier　and　source　follower　with　variable　current　mirror　were　simultaneously　employed　to　vary　and　control　gain.　The　current-reuse　in　cascode　amplifier　and　common-gate　amplifier　reduced　power　consumption.　Based　on　TSMC　0.18μm　BiCMOS　technology,　the　DB-VGLNA　was　verified.　The　results　show　that　the　DB-VGLNA　has　tunable　gain　(S21)　ranges　of　1∼13.5　dB　and　0∼16.5　dB　at　respective　frequencies　of　2.4　GHz　and　5.2　GHz　by　three　gain-adjustment　stages.　The　both　input　return　loss　(S11)　and　output　return　loss　(S22)　are　less　than　-10　dB,　the　noise　figure　(NF)　is　below　than　5　dB.　With　the　supply　voltage　of　3.3　V,　the　static　power　consumption　is　less　than　15　mW.　©　2016　IEEE.

关键词：

Analog circuits Cascode amplifiers Electric power utilization Low noise amplifiers Millimeter waves Noise figure Variable gain amplifiers

作者机构：

[ 1 ] [Huang, Xin]Research Lab of RF Devices and RFICs, College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Zhang, Wan-Rong]Research Lab of RF Devices and RFICs, College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Jin, Dong-Yue]Research Lab of RF Devices and RFICs, College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing; 100124, China
[ 4 ] [Xie, Hong-Yun]Research Lab of RF Devices and RFICs, College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing; 100124, China
[ 5 ] [Zhao, Yan-Xiao]Research Lab of RF Devices and RFICs, College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing; 100124, China
[ 6 ] [Chen, Ji-Tian]Research Lab of RF Devices and RFICs, College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing; 100124, China
[ 7 ] [Liu, Ya-Ze]Research Lab of RF Devices and RFICs, College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing; 100124, China
[ 8 ] [Liu, Shuo]Research Lab of RF Devices and RFICs, College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing; 100124, China

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