Evaluation of error vector magnitude due to combined IQ imbalances and phase noise

Apostolos Georgiadis, Christos Kalialakis

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Novel closed form expressions for the error vector magnitude (EVM) are presented. The expressions combine the in-phase quadrature (IQ) amplitude and phase imbalances and the DC offsets along with the phase noise. Both the Gaussian and the Tikhonov probability density functions are utilised for the oscillator phase noise distribution. The explicit conditions when the EVM computations based on the Tikhonov distribution converge to a Gaussian based are investigated. Furthermore, the application of the proposed EVM expressions is demonstrated by including phase noise masks, providing a direct means to the phase locked loop/voltage controlled oscillator design parameters. The measurements are used to validate the proposed expressions.

Original languageEnglish
Pages (from-to)421-426
Number of pages6
JournalIET Circuits, Devices and Systems
Volume8
Issue number6
DOIs
Publication statusPublished - Nov 2014

Keywords

  • RECEIVERS
  • SYSTEMS
  • COMPENSATION
  • TRANSMITTER
  • CONVERSION

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