Noise canceling LNA with gain enhancement by using double feedback

I. Bastos; L. B. Oliveira; J. Goes; J. P. Oliveira; M. Silva

doi:10.1016/j.vlsi.2015.07.003

Noise canceling LNA with gain enhancement by using double feedback

I. Bastos, L. B. Oliveira, J. Goes, J. P. Oliveira, M. Silva

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

In this paper we present a balun low noise amplifier (LNA) in which the gain is boosted by using a double feedback structure. The circuit is based on a conventional balun LNA with noise and distortion cancelation. The LNA is based on the combination of a common-gate (CG) stage and common-source (CS) stage. We propose to replace the load resistors by active loads, which can be used to implement local feedback loops (in the CG and CS stages). This will boost the gain and reduce the noise figure (NF). Simulation results, with a 130nm CMOS technology, show that the gain is 24dB and the NF is less than 2.7dB. The total power dissipation is only 5.4mW (since no extra blocks are required), leading to a figure-of-merit (FOM) of 3.8mW^-1 using a nominal 1.2V supply. Measurement results are presented for the proposed DFB LNA included in a receiver front-end for biomedical applications (ISM and WMTS).

Original language	English
Pages (from-to)	309-315
Journal	Integration-The Vlsi Journal
Volume	52
DOIs	https://doi.org/10.1016/j.vlsi.2015.07.003
Publication status	Published - Jan 2016

Keywords

CMOS LNAs
Noise canceling
RF front-end receivers
Wideband LNA

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title = "Noise canceling LNA with gain enhancement by using double feedback",

abstract = "In this paper we present a balun low noise amplifier (LNA) in which the gain is boosted by using a double feedback structure. The circuit is based on a conventional balun LNA with noise and distortion cancelation. The LNA is based on the combination of a common-gate (CG) stage and common-source (CS) stage. We propose to replace the load resistors by active loads, which can be used to implement local feedback loops (in the CG and CS stages). This will boost the gain and reduce the noise figure (NF). Simulation results, with a 130nm CMOS technology, show that the gain is 24dB and the NF is less than 2.7dB. The total power dissipation is only 5.4mW (since no extra blocks are required), leading to a figure-of-merit (FOM) of 3.8mW-1 using a nominal 1.2V supply. Measurement results are presented for the proposed DFB LNA included in a receiver front-end for biomedical applications (ISM and WMTS).",

keywords = "CMOS LNAs, Noise canceling, RF front-end receivers, Wideband LNA",

author = "I. Bastos and Oliveira, {L. B.} and J. Goes and Oliveira, {J. P.} and M. Silva",

note = "Sem pdf conforme despacho. Portuguese Foundation for Science and Technology (FCT/MCTES) (CTS multi-annual funding) through PIDDAC program funds; Portuguese Foundation for Science and Technology (FCT/MCTES) (CTS multi-annual funding) - (EXCL/EEI-ELC/0261/2012 ; PEST-OE/EEI/UI0066/2014; SFRH/BD/68946/2010)",

year = "2016",

month = jan,

doi = "10.1016/j.vlsi.2015.07.003",

language = "English",

volume = "52",

pages = "309--315",

journal = "Integration-The Vlsi Journal",

issn = "0167-9260",

publisher = "Elsevier Science B.V., Amsterdam.",

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TY - JOUR

T1 - Noise canceling LNA with gain enhancement by using double feedback

AU - Bastos, I.

AU - Oliveira, L. B.

AU - Goes, J.

AU - Oliveira, J. P.

AU - Silva, M.

N1 - Sem pdf conforme despacho. Portuguese Foundation for Science and Technology (FCT/MCTES) (CTS multi-annual funding) through PIDDAC program funds; Portuguese Foundation for Science and Technology (FCT/MCTES) (CTS multi-annual funding) - (EXCL/EEI-ELC/0261/2012 ; PEST-OE/EEI/UI0066/2014; SFRH/BD/68946/2010)

PY - 2016/1

Y1 - 2016/1

N2 - In this paper we present a balun low noise amplifier (LNA) in which the gain is boosted by using a double feedback structure. The circuit is based on a conventional balun LNA with noise and distortion cancelation. The LNA is based on the combination of a common-gate (CG) stage and common-source (CS) stage. We propose to replace the load resistors by active loads, which can be used to implement local feedback loops (in the CG and CS stages). This will boost the gain and reduce the noise figure (NF). Simulation results, with a 130nm CMOS technology, show that the gain is 24dB and the NF is less than 2.7dB. The total power dissipation is only 5.4mW (since no extra blocks are required), leading to a figure-of-merit (FOM) of 3.8mW-1 using a nominal 1.2V supply. Measurement results are presented for the proposed DFB LNA included in a receiver front-end for biomedical applications (ISM and WMTS).

AB - In this paper we present a balun low noise amplifier (LNA) in which the gain is boosted by using a double feedback structure. The circuit is based on a conventional balun LNA with noise and distortion cancelation. The LNA is based on the combination of a common-gate (CG) stage and common-source (CS) stage. We propose to replace the load resistors by active loads, which can be used to implement local feedback loops (in the CG and CS stages). This will boost the gain and reduce the noise figure (NF). Simulation results, with a 130nm CMOS technology, show that the gain is 24dB and the NF is less than 2.7dB. The total power dissipation is only 5.4mW (since no extra blocks are required), leading to a figure-of-merit (FOM) of 3.8mW-1 using a nominal 1.2V supply. Measurement results are presented for the proposed DFB LNA included in a receiver front-end for biomedical applications (ISM and WMTS).

KW - CMOS LNAs

KW - Noise canceling

KW - RF front-end receivers

KW - Wideband LNA

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JO - Integration-The Vlsi Journal

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ER -

Noise canceling LNA with gain enhancement by using double feedback

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Keywords

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