A Low-Power Reconfigurable Narrowband/Wideband LNA for Cognitive Radio-Wireless Sensor Network

Kumar, A R Aravinth and Dutta, Asudeb and Sahoo, Bibhu Datta (2020) A Low-Power Reconfigurable Narrowband/Wideband LNA for Cognitive Radio-Wireless Sensor Network. IEEE Transactions on Very Large Scale Integration (VLSI) Systems, 28 (1). pp. 212-223. ISSN 1063-8210

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Abstract

This article proposes a low-power reconfigurable multimode low-noise amplifier (LNA) that can be configured for multiple narrowband as well as wideband operations while providing simultaneous input matching and output load reconfigurabilty. A component sharing technique and a component-Q-aware impedance-matching technique are introduced in the proposed LNA circuit. The proposed LNA, implemented in a United Microelectronics Corporation (UMC) 0.18- \mu \text{m} CMOS process, can operate in a narrowband mode with center frequencies around 1.8, 2.1, and 2.4 GHz as well as in a wideband mode (2-5 GHz). Measured results show that the LNA has achieved 14.1, 14.5, and 14.1 dB of voltage gain, 8.5, 8.2, and 8.7 dB of noise figure (NF) in 1.8-, 2.1-, and 2.4-GHz modes, respectively. In the wideband mode, the measured gain and the NF are 14.5 and 7.8 dB, respectively. The LNA consumes 2 and 3.8 mW of power from the 1.8-V supply in the narrowband and wideband modes, respectively.

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IITH Creators:

IITH Creators	ORCiD
Dutta, Asudeb	UNSPECIFIED

Item Type:

Article

Uncontrolled Keywords:

Cognitive, current reuse, impedance matching, low power, low-noise amplifier (LNA)multiband, multimode, narrowband, reconfigurable, wideband, wireless-sensor network (WSN), Indexed in Scopus

Subjects:

Electrical Engineering

Divisions:

Department of Electrical Engineering

Depositing User:

Team Library

Date Deposited:

27 Jan 2020 11:31

Last Modified:

27 Jan 2020 11:31

URI:

http://raiithold.iith.ac.in/id/eprint/7369