A 0.1-6 GHz inductorless differential common gate LNA

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

2 Scopus citations

Abstract

A 0.1-6 GHz fully differential common gate low noise amplifier (CGLNA) is proposed in this paper. High equivalent transconductance (gm) is realized with active transconductance-boosting with cross coupling capacitance. By introducing a positive feedback path in active transconductance-boosting circuit, this circuit increases freedom of transconductance, thus alleviates the trade-off between input matching and noise performance. It also improves the noise performance and realizes the high gain under low power consumption. The circuit is implemented in 40nm CMOS process. From the post-layout simulation, this circuit shows 13 dB gain with a 3-dB bandwidth of 4.4 GHz. It achieves a simulation NF of 3 dB at 1 GHz. And the input-referred third-order intercept (IIP3) value is -15.59dBm. The power consumption is 3.6mW from 1V supply.

Original languageEnglish
Title of host publication2015 IEEE International Wireless Symposium, IWS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479919284
DOIs
StatePublished - 22 Jul 2015
Externally publishedYes
EventIEEE International Wireless Symposium, IWS 2015 - Shenzhen, China
Duration: 30 Mar 20151 Apr 2015

Publication series

Name2015 IEEE International Wireless Symposium, IWS 2015

Conference

ConferenceIEEE International Wireless Symposium, IWS 2015
Country/TerritoryChina
CityShenzhen
Period30/03/151/04/15

Keywords

  • CGLNA
  • Inductor-less
  • active g-boosted
  • positive feedback

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