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Analog Integrated Circuits and Signal Processing

, Volume 101, Issue 3, pp 651–657 | Cite as

A 2.99 dB NF 15.6 dB Gain 3-10GHz Ultra-wideband low-noise amplifier for UWB systems in 65 nm CMOS

  • Peng Luo
  • Maliang LiuEmail author
  • Long Chen
  • Ji Gao
  • Zhangming Zhu
  • Yintang Yang
Article
  • 71 Downloads

Abstract

A low noise figure (NF) and high power gain (S21) 3–10 GHz ultra-wideband (UWB) low noise amplifier (LNA) in 65 nm CMOS technology is proposed for UWB system which has a high figure of merit. A shunt–shunt resistive feedback technique is used to achieve wideband input impedance matching. A differential current-reused structure is used to achieve high common noise suppression and low power consumption. The implemented LNA achieves a high and flat aS21 of 15.6 ± 1.07 dB with an input return loss (S11) which is better than − 8.7 dB and a low NF of 2.99 ± 0.18 dB at frequencies of 3–10 GHz. The measured input third-order intermodulation point (IIP3) is − 5.7 dBm at 6 GHz.

Keywords

CMOS Ultra-wideband (UWB) Low noise amplifier (LNA) Noise figure 

Notes

Funding

The funding was provided by National Natural Science Foundation of China (Grand No. 61874082).

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Peng Luo
    • 1
  • Maliang Liu
    • 1
    Email author
  • Long Chen
    • 1
  • Ji Gao
    • 1
  • Zhangming Zhu
    • 1
  • Yintang Yang
    • 1
  1. 1.Xidian UniversityXi’anChina

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