A novel 3.1~6GHz ultra-wideband low noise amplifier with high gain - 文章详情页

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摘要：

A　novel　ultra-wideband　(UWB)　low　noise　and　high　gain　Darlington　amplifier　is　presented　based　on　the　traditional　narrow-band　Darlington　amplifier.　In　the　new　amplifier,　the　high-frequency　transistors,　and　the　compensation　techniques　of　inductor　and　positive　real　resistance　are　adopted　to　keep　the　advantage　of　high　gain　of　Darlington　amplifier,　and　to　achieve　low　noise,　good　input　and　output　match,　and　good　wideband　stability.　The　simulation　results　show　that　the　new　amplifier　has　high　gain　of　21　dB　with　variation　less　than　0.3　dB,　low　noise　figure　from　1.5　to　2.1　dB,　matched　input　and　output　reflections　(S11,　S22)　less　than　-14　dB,　and　good　stability　in　the　frequency　range　from　3.1　to　6GHz.

关键词：

Broadband amplifiers High frequency amplifiers Low noise amplifiers Noise figure Ultra-wideband (UWB)

作者机构：

[ 1 ] [Shen, Pei]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Zhang, Wan-Rong]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Jin, Dong-Yue]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Xie, Hong-Yun]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China
[ 5 ] [You, Yun-Xia]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China
[ 6 ] [Sun, Bo-Tao]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China
[ 7 ] [Xiao, Ying]College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China

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