Design of dual band SiGe HBT LNA with current reuse topology - 文章详情页

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摘要：

This　paper　presents　a　general　methodology　to　design　a　LNA　with　current　reuse　topology　for　two　standards　which　can　operate　at　mobile　band　of　1.8GHz　and　WLAN　band　of　5.2GHz.　A　novel　current　reuse　topology　is　proposed　to　reduce　the　power　consumption　and　enhance　the　transmission　gain.　The　input　matching　is　achieved　through　serial　and　parallel　LC　circuit.　Inductor　degeneration　in　emitter　is　introduced　to　decouple　the　input　impedance　from　the　noise　factor.　The　proposed　LNA　is　designed　in　JAZZ　SiGe　HBT　0.35μm　process.　It　achieves　transmission　gains　of　30dB　and　20dB,　noise　figures　of　2.1dB　and　-1.7　dB　respectively　at　1.8GHz　and　5.2GHz.　And　both　S11　are　below　17dB.　The　power　consumption　is　24.5mW　under　a　power　supply　voltage　of　3.5V.　©　2011　IEEE.

关键词：

Design Electric power utilization Low noise amplifiers Resonant circuits Si-Ge alloys Solid state devices Topology

作者机构：

[ 1 ] [Lu, Z.Y.]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Xie, H.Y.]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Zhang, W.R.]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Huo, W.J.]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China
[ 5 ] [Guo, Z.J.]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China
[ 6 ] [Xing, G.H.]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China
[ 7 ] [Ding, C.B.]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China
[ 8 ] [Chen, L.]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China
[ 9 ] [Zhang, Y.J.]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China

通讯作者信息：

[lu, z.y.]college of electronic information and control engineering, beijing university of technology, beijing 100124, china

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