A CMOS Active Balun-LNA With Imbalance Correction and Noise Cancelling

Pei Qin*, Quan Xue

*Corresponding author for this work

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

Abstract

This paper presents an active balun topology with differential imbalance correction and noise cancelling schemes. The imbalance correction scheme can effectively ameliorate both the magnitude and phase errors induced by circuit asymmetry, parasitic and layout mismatch. Noise cancelling exists in each individual stage, which leads to good noise performance. With sufficient gain and low noise figure, this balun can also work as a low noise amplifier (LNA) in RF front end. Implemented in 65nm CMOS process, the balun-LNA exhibits maximum power gain of 16dB, minimum noise figure of 3.8dB and input matching better than -20dB. The measured magnitude and phase errors are less than 0.6dB and 7 degrees, respectively.

Original languageEnglish
Title of host publication2016 IEEE INTERNATIONAL WORKSHOP ON ELECTROMAGNETICS: APPLICATIONS AND STUDENT INNOVATION COMPETITION (IWEM)
PublisherIEEE
Pages1-3
DOIs
Publication statusPublished - 2016
Event2016 IEEE International Workshop on Electromagnetics (iWEM2016): Applications and Student Innovation Competition - Nanjing, China
Duration: 16 May 201618 May 2016

Conference

Conference2016 IEEE International Workshop on Electromagnetics (iWEM2016): Applications and Student Innovation Competition
PlaceChina
CityNanjing
Period16/05/1618/05/16

Research Keywords

  • Active balun
  • low noise amplifier (LNA)
  • phase errors
  • magnitude errors
  • imbalance correction
  • noise cancelling schemes
  • CMOS integrated circuits
  • baluns
  • integrated circuit layout
  • low noise amplifiers
  • radiofrequency amplifiers
  • CMOS active balun-LNA
  • CMOS process
  • RF front end
  • active balun topology
  • circuit asymmetry
  • differential imbalance correction
  • gain 16 dB
  • layout mismatch
  • noise figure
  • noise figure 3.8 dB
  • noise performance
  • parasitic mismatch
  • size 65 nm
  • Decision support systems
  • Impedance matching
  • Noise cancellation
  • Radiofrequency integrated circuits
  • low noise amplifier
  • Low-noise amplifiers
  • magnitude error
  • phase error

Fingerprint

Dive into the research topics of 'A CMOS Active Balun-LNA With Imbalance Correction and Noise Cancelling'. Together they form a unique fingerprint.

Cite this