Single-Ended Oscillation-Based Test Technique for Passive RF Phase Shifters

Johannes J.P. Venter, Tinus Stander

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

1 Citation (Scopus)

Abstract

Phased array systems have become paramount to the development of next generation wireless communication networks, with errors on phase shifters contributing to beam pointing error. Oscillation-based built-in self-testing (OBIST) of phase shifters may improve on this accuracy. We propose a single-ended oscillation-based test technique for passive RF phase shifters. The method uses a negative resistance oscillator topology, where the phase shifter is used to capacitively load the active negative resistance circuit resulting in a dependency between relative phase shift and output oscillation frequency. Simulation results indicate an average sensitivity of 0.14 MHz/° of phase shift around a nominal 617 MHz output oscillation when testing an X-band reflection-type phase shifter, while the addition of OBT circuitry increases the phase shifter's mid-band insertion loss by 0.93 dB..

Original languageEnglish
Title of host publication2021 15th International Conference on Advanced Technologies, Systems and Services in Telecommunications, TELSIKS 2021 - Proceedings
EditorsBratislav D. Milovanovic, Nebojsa S. Doncov, Zoran Z. Stankovic, Biljana P. Stosic
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages103-106
Number of pages4
ISBN (Electronic)9781665444422
DOIs
Publication statusPublished - 2021
Externally publishedYes
Event15th International Conference on Advanced Technologies, Systems and Services in Telecommunications, TELSIKS 2021 - Virtual, Nis, Serbia
Duration: 20 Oct 202122 Oct 2021

Publication series

Name2021 15th International Conference on Advanced Technologies, Systems and Services in Telecommunications, TELSIKS 2021 - Proceedings

Conference

Conference15th International Conference on Advanced Technologies, Systems and Services in Telecommunications, TELSIKS 2021
Country/TerritorySerbia
CityVirtual, Nis
Period20/10/2122/10/21

Keywords

  • Built-in self-test
  • Oscillation-based test
  • Phase shifters
  • Phased arrays

ASJC Scopus subject areas

  • Information Systems and Management
  • Computer Networks and Communications
  • Hardware and Architecture
  • Safety, Risk, Reliability and Quality
  • Instrumentation

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