WSEAS Transactions on Circuits and Systems
Print ISSN: 1109-2734, E-ISSN: 2224-266X
Volume 14, 2015
Design of a LNA in The Frequency Band 1.8-2.2ghz in CMOS Technology
Authors: , , , ,
Abstract: As the first active stage of receivers, Low Noise Amplifier (LNA) play a critical role in the overall performance and their design is governed by the parameters. This paper presents the design of LNA and development of low bias (VDS=3V,ID=20mA), which operating in frequency range 1.8-2.2GHz using a feedback circuit. The proposed Single Stage and Two Stage LNA are simulated with Advanced Design System (ADS) 2012. The paper compares the simulated results of Single Stage LNA and Two Stage LNA. Simulation results of the final Single Stage LNA have indicated that the S21=16.332±0.348dB, NF=0.445±0.05dB, S12<-22.441dB and S11<-16.631dB over the wide frequency band of 1.8-2.2GHz. Simulation results of the final Two Stage LNA have indicated that the S21=29.929±0.591dB, NF=0.482±0.055dB, S12<-40.783dB and S11<-16.126dB over the wide frequency band of 1.8-2.2GHz.
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Pages: 99-107
WSEAS Transactions on Circuits and Systems, ISSN / E-ISSN: 1109-2734 / 2224-266X, Volume 14, 2015, Art. #11