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Progress In Electromagnetics Research C
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A COMPACT WIDEBAND MATCHING 0.18-μm CMOS UWB LOW-NOISE AMPLIFIER USING ACTIVE FEEDBACK TECHNIQUE

By J.-Y. Li, W.-J. Lin, M.-P. Houng, and L.-S. Chen

Full Article PDF (357 KB)

Abstract:
This work presents an ultra-wideband (UWB) low noise amplifier (LNA) with active shunt-feedback technique for wideband and flat gain by using standard 0.18 μm CMOS processes. Different from past resistive shunt-feedback technique, the capacitor supersedes by a transistor in active shunt-feedback technique. The active shunt-feedback provides input matching generating a 50 Ω real part with proper design and achieves flat gain from 2.5 GHz to 12 GHz. The UWB LNA achieved 11.4±0.2 dB gains, 4.5~5.2 dB noise figure (NF), 13.5 mW power consumption at frequency 3.1 GHz to 10.6 GHz, -15 dBm of 1-dB compression point (P1dB), and -3 dBm of input third intercept point (IIP3) at 6 GHz. The chip size including pads is only 0.6×0.5 mm2.

Citation:
J.-Y. Li, W.-J. Lin, M.-P. Houng, and L.-S. Chen, "A Compact Wideband Matching 0.18-μM CMOS UWB Low-Noise Amplifier Using Active Feedback Technique," Progress In Electromagnetics Research C, Vol. 16, 161-169, 2010.
doi:10.2528/PIERC10090201

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