A novel low-power fully-differential current-reuse cascaded CG-CS-LNA for 6-9-GHz UWB receivers

Peng Wang, Fredrik Jonsson, Li Rong Zheng

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

This paper proposes a novel low-power fully-differential ultra-wideband (UWB) low noise amplifier (LNA) for 6-9-GHz UWB receivers in digital 90nm CMOS. The capacitive cross-coupled common-gate (CG) stage is cascaded with a cross-coupled common-source (CS) second stage to perform the wideband input impedance matching, low noise figure (NF), low power, and flat-high-wideband gain which is due to the stagger tuning amplification. The DC power consumption is further reduced by the current-reuse topology. The simulation results achieve the minimum NF of 2.55dB, maximum voltage gain of 24.8dB with 3-dB bandwidth of 6-9-GHz, and IIP3 of 3.57dBm at 9GHz. The return loss is less than -12dB in the desired band because of the CG stage as the input stage. The proposed UWB LNA consumes 2.3m W core DC power at 1V supply voltage.

Original languageEnglish
Title of host publication2010 IEEE International Conference on Electronics, Circuits, and Systems, ICECS 2010 - Proceedings
Pages1188-1191
Number of pages4
DOIs
StatePublished - 2010
Externally publishedYes
Event2010 IEEE International Conference on Electronics, Circuits, and Systems, ICECS 2010 - Athens, Greece
Duration: 12 Dec 201015 Dec 2010

Publication series

Name2010 IEEE International Conference on Electronics, Circuits, and Systems, ICECS 2010 - Proceedings

Conference

Conference2010 IEEE International Conference on Electronics, Circuits, and Systems, ICECS 2010
Country/TerritoryGreece
CityAthens
Period12/12/1015/12/10

Keywords

  • CG-CS-LNA
  • Current-reuse
  • Fully-differential
  • Low-power
  • UWB

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