A Low-Power Self-Forward-Body-Bias CMOS LNA for 3–6.5-GHz UWB Receivers

Author

Li, Chen-Ming ; Li, Ming-Tsung ; He, Kuang-Chi ; Tarng, Jenn-Hwan

Author_Institution

Dept. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan

Volume

20

Issue

2

fYear

2010

Firstpage

100

Lastpage

102

Abstract

A low-power low-noise amplifier (LNA) implemented in 0.18 ??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.

Keywords

CMOS integrated circuits; low noise amplifiers; radio receivers; ultra wideband communication; CMOS LNA; UWB low-frequency band system; UWB receiver; direct coupling technique; frequency 3 GHz to 6.5 GHz; gain 16 dB; impedance matching; low-power low-noise amplifier; low-power self-forward-body-bias technique; noise figure 2.65 dB; power 4.5 mW; size 0.18 micron; voltage 1.06 V; CMOS; forward body bias (FBB); low noise amplifier (LNA); low power; ultra-wideband (UWB);

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2009.2038526

Filename

5398816