Title: A Low-Power Self-Forward-Body-Bias CMOS LNA for 3-6.5-GHz UWB Receivers
Authors: Li, Chen-Ming
Li, Ming-Tsung
He, Kuang-Chi
Tarng, Jenn-Hwan
Institute of Communications Engineering
Keywords: CMOS;forward body bias (FBB);low noise amplifier (LNA);low power;ultra-wideband (UWB)
Issue Date: 1-Feb-2010
Abstract: A low-power low-noise amplifier (LNA) implemented in 0.18 mu m CMOS technology utilizing a self-forward-body-bias (SFBB) technique is proposed for UWB low-frequency band system. By using the SFBB technique, it reduces supply voltage as well as saves additional bias circuits, which leads to low power consumption of 4.5 mW with low supply voltage of 1.06 V for two drain-to-source voltage drops. The complementary architecture and direct coupling technique between the first two stages also save bias circuits. The measurement result shows that the proposed LNA presents a maximum power gain of 16 dB with a good input impedance matching (S11 < -12 dB) and an average noise figure of 2.65 dB in the frequency range of 3-6.5 GHz.
URI: http://dx.doi.org/10.1109/LMWC.2009.2038526
ISSN: 1531-1309
DOI: 10.1109/LMWC.2009.2038526
Volume: 20
Issue: 2
Begin Page: 100
End Page: 102
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