An ultra-wideband CMOS low noise amplifier for 3-5-GHz UWB system

@article{Kim2005AnUC,
  title={An ultra-wideband CMOS low noise amplifier for 3-5-GHz UWB system},
  author={Chang-Wan Kim and Min-Suk Kang and Phan Tuan Anh and Hoon-Tae Kim and Sang-Gug Lee},
  journal={IEEE Journal of Solid-State Circuits},
  year={2005},
  volume={40},
  pages={544-547}
}
An ultra-wideband (UWB) CMOS low noise amplifier (LNA) topology that combines a narrowband LNA with a resistive shunt-feedback is proposed. The resistive shunt-feedback provides wideband input matching with small noise figure (NF) degradation by reducing the Q-factor of the narrowband LNA input and flattens the passband gain. The proposed UWB amplifier is implemented in 0.18-/spl mu/m CMOS technology for a 3.1-5-GHz UWB system. Measurements show a -3-dB gain bandwidth of 2-4.6GHz, a minimum NF… CONTINUE READING
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