A 0.18μm CMOS low power LNA for 6–8.5 GHz UWB receivers

Author

Djugova, Alena ; Radic, Jelena ; Videnovic-Misic, Mirjana

Author_Institution

Dept. of Power, Electron. & Commun. Eng., Univ. of Novi Sad, Novi Sad, Serbia

Volume

1

fYear

2011

fDate

17-19 Oct. 2011

Firstpage

215

Lastpage

218

Abstract

This paper presents the design of an ultra-wideband (UWB) low noise amplifier (LNA) in 0.18μm CMOS technology. Proper input matching is achieved with inductive degenerated amplifier circuit modified with resistive feedback. To provide good isolation and stability, cascode amplifier, as a first amplifying stage, is used. Additional common source stage is introduced by using current reuse technique. Operated at 1.8 V LNA consumes only 5.26 mW. The simulation results show maximum power gain of 14.3 dB, while the input and output return loss is less than -10 dB, within the bandwidth from 6 to 8.5 GHz. The noise figure of the LNA varies from 3.9 to 6.8 dB.

Keywords

CMOS analogue integrated circuits; MMIC amplifiers; feedback amplifiers; field effect MMIC; low noise amplifiers; low-power electronics; radio receivers; ultra wideband technology; CMOS low power LNA technology; UWB receivers; bandwidth 6 GHz to 8.5 GHz; cascode amplifier; current reuse technique; gain 14.3 dB; inductive degenerated amplifier circuit; noise figure 3.9 dB to 6.8 dB; power 5.26 mW; resistive feedback; return loss; size 0.18 mum; ultra-wideband low noise amplifier; voltage 1.8 V; CMOS integrated circuits; Gain; Impedance matching; Noise measurement; Topology; Transistors; Wideband; Broad band; Current reuse; Low noise amplifier (LNA); Ultra-wideband (UWB);

fLanguage

English

Publisher

ieee

Conference_Titel

Semiconductor Conference (CAS), 2011 International

Conference_Location

Sinaia

ISSN

1545-827X

Print_ISBN

978-1-61284-173-1

Type

conf

DOI

10.1109/SMICND.2011.6095762

Filename

6095762