Title :
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
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);
Conference_Titel :
Semiconductor Conference (CAS), 2011 International
Conference_Location :
Sinaia
Print_ISBN :
978-1-61284-173-1
DOI :
10.1109/SMICND.2011.6095762
