A 1.5-7.5GHz low power low noise amplifier (LNA) design using subthreshold technique for Wireless Sensor Network (WSN) application

Aravinth Kumar, A R and Dutta, Asudeb and Singh, Shiv Govind (2012) A 1.5-7.5GHz low power low noise amplifier (LNA) design using subthreshold technique for Wireless Sensor Network (WSN) application. In: IEEE International Symposium on Circuits and Systems, 20-23, May 2012, Seoul; South Korea.

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Abstract

A novel wide band low power low noise amplifier using subthreshold technique is presented in this paper. This LNA built with Common-Gate (CG) input stage for wide band input matching and a Common Source (CS) -Common Gate (CG) cascode stage for gain boosting. Power reduction is achieved by driving the front end CG transistor in sub-threshold region and input matching is done by LC circuit instead of traditional CG method (Rs=1/g m). The circuit is simulated using Spectra-RF simulator in 0.18μm CMOS technology, and achieved 13.5-14.5 dB (7.5 to 8.5 dB + 6dB loss in buffer) gain over entire band of 1.5-7.5GHz with a 5-10.5dB NF while consuming 4.9mW of power from 1.8V supply

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IITH Creators:

IITH Creators	ORCiD
Dutta, Asudeb	UNSPECIFIED
Singh, Shiv Govind	http://orcid.org/0000-0001-7319-879X

Item Type:

Conference or Workshop Item (Paper)

Uncontrolled Keywords:

Cascode; CMOS technology; Common gates; Common source; Front end; Gain boosting; Input matching; LC circuits; Low Power; Power reductions; Subthreshold; Wide-band

Subjects:

Physics > Electricity and electronics

Divisions:

Department of Electrical Engineering

Depositing User:

Team Library

Date Deposited:

11 Nov 2014 04:02

Last Modified:

11 Sep 2017 09:59

URI:

http://raiithold.iith.ac.in/id/eprint/673