A 0.5-6GHz low gain linear RF front-end in 90nm CMOS

Rashad Ramzan, Rashad Ranzan, Naveed Ahsan, Jerzy Dabrowski, Christer Svensson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents the design and measurement results of low gain RF front-end manufactured in 90nm CMOS covering the frequency range of 0.5-6GHz. The front-end is a modified form of a balanced active mixer to enhance its gain and achieve wideband input matching. The transconductance stage of a mixer is split into NMOS-PMOS inverter pair for better linearity and partial noise cancellation. The inverter stage with common drain feedback achieves wideband input impedance match better than -8dB up to 8GHz. The voltage conversion gain is 5dB at 6GHz with 3dB bandwidth of more than 5.5GHz. The measured single side band noise figure at LO frequency of 1.5GHz and IF of 30MHz is 7dB. The measured 1dB compression point is -17dBm at 2.4GHz. Similarly, measured IIP3 is 2.5dBm and IIP2 is 40dBm at 1GHz. The complete front-end consumes 23mW with active chip area of only 0.048mm2.

Original languageEnglish
Title of host publicationProceedings of the 17th International Conference on Mixed Design of Integrated Circuits and Systems, MIXDES 2010
Pages168-171
Number of pages4
Publication statusPublished - Oct 6 2010
Externally publishedYes
Event17th International Conference - Mixed Design of Integrated Circuits and Systems, MIXDES 2010 - Wroclaw, Poland
Duration: Jun 24 2010Jun 26 2010

Publication series

NameProceedings of the 17th International Conference - Mixed Design of Integrated Circuits and Systems, MIXDES 2010

Other

Other17th International Conference - Mixed Design of Integrated Circuits and Systems, MIXDES 2010
Country/TerritoryPoland
CityWroclaw
Period6/24/106/26/10

Keywords

  • Integrated LNA and mixer
  • Multi-standard
  • RF front-end
  • Software defined radio (SDR)
  • Wideband receiver
  • Zero-IF

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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