Title :
A CMOS Low-Noise Amplifier With Reconfigurable Input Matching Network
Author :
El-Nozahi, Mohamed ; Sánchez-Sinencio, Edgar ; Entesari, Kamran
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas A&M Univ., College Station, TX
fDate :
5/1/2009 12:00:00 AM
Abstract :
A reconfigurable low-noise amplifier (LNA) with tunable input matching network is proposed. The tunable input matching network provides continuous tuning of the input resonant circuit. The LNA is implemented using 0.13-mum CMOS technology. The amplifier has a tuning range of 1.9-2.4 GHz with an input return loss better than -13 dB. The LNA has a measured voltage gain of 10-14 dB and a noise figure of 3.2-3.7 dB within the band. The LNA consumes 14 mA from a 1.2-V supply. The detailed analysis of the proposed LNA, including the tuning range and additional noise of the proposed reconfigurable input matching network, is presented. To our knowledge, this is the first architecture that provides continuous tuning of the input matching network.
Keywords :
circuit tuning; low noise amplifiers; 0.13-mum CMOS technology; LNA; current 14 mA; frequency 1.9 GHz to 2.4 GHz; gain 10 dB to 14 dB; input matching network; input return loss; low-noise amplifier; noise figure; noise figure 3.2 dB to 3.7 dB; size 0.13 mum; tuning; voltage 1.2 V; Low-noise amplifier (LNA); reconfigurable input matching network; tunable inductor;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2009.2017249
