AI Summary & Key Takeaways
AI InsightThe proposed LNA has noise-figure (NF) equal to 3.36–4.68 dB, with input ($S_{11}$) and output ($S_{22}$) reflection coefficients of less than −9.3 dB and −11.35 dB, respectively across the entire UWB range.
📌 3 Key Takeaways
Özet
This paper presents the circuit of a low-noise amplifier (LNA) using active inductor (AI) input matching with common gate (CG) current-reused technique. This configuration is implemented in 90 nm CMOS and enables to achieve high power-gain ($S_{21}$) with ultra-wideband (UWB) input matching at low power levels. Utilization of modified high-Q AI at the input side of the proposed LNA reduces the number of inductors and achieves UWB from only two inductors. Proposed LNA dissipates 10.4 mW from 1.0 V supply and exhibits an $S_{21}$ response of 18.0 ± 0.8 dB for 3.1–10.6 GHz with a maximum and average S21 of 18.8 dB and 18.22 dB, respectively. The proposed LNA has noise-figure (NF) equal to 3.36–4.68 dB, with input ($S_{11}$) and output ($S_{22}$) reflection coefficients of less than −9.3 dB and −11.35 dB, respectively across the entire UWB range.