Experimental Testbed for PA Characterization and Pre-Distortion with Relaxed Sampling Rate Requirements

Peter Bagot, Souheil Ben Smida, Oualid Hammi

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

Abstract

This paper explores an interleaving approach to expand the effective sampling rate of analog-to-digital converters (ADCs) with application to power amplifier characterization and digital pre-distortion. By interleaving a known test signal, it is shown that a 250 MSPS ADC can be used to effectively sample at 2 GSPS, providing 1 GHz of observational bandwidth. A 200 MHz “stretched” LTE signal is then acquired using this technique, and digital pre-distortion is applied to an amplifier under test to prove the concept.
Original languageEnglish
Title of host publication2017 89th ARFTG Microwave Measurement Conference (ARFTG)
PublisherIEEE
ISBN (Electronic)9781538627471
DOIs
Publication statusPublished - 8 Aug 2017

Keywords

  • Analog-to-digital converters
  • characterization
  • digital pre-distortion
  • radio frequency
  • receivers
  • wideband

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    Bagot, P., Ben Smida, S., & Hammi, O. (2017). Experimental Testbed for PA Characterization and Pre-Distortion with Relaxed Sampling Rate Requirements. In 2017 89th ARFTG Microwave Measurement Conference (ARFTG) [8000819] IEEE. https://doi.org/10.1109/ARFTG.2017.8000819