Varactor-Based 360° Differential Phase Shifter Pair

Yuan Yuan, Shengjian Jammy Chen, Christophe Fumeaux

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

1 Citation (Scopus)

Abstract

A differential phase shifter pair which is able to supply full 360° phase difference between two output ports is demonstrated. Thanks to the differential pair configuration, the phase shifter element requires much less phase dynamic range compared to conventional phase shifters. The basic phase-tuning unit contains a 50 Ω host microstrip line, with three identical shorted-stub-loaded varactors and two open-ended stubs on its edge. The phase shifter pair is able to produce full 360° phase difference continuously with a maximum insertion loss of 2.3 dB at 5 GHz and 2.5 dB between 4.75 and 5.25 GHz. The good agreement between simulation and measurement suggests that the differential phase shifter pair is promising and practical for microwave and antenna applications.

Original languageEnglish
Title of host publication2023 5th Australian Microwave Symposium (AMS)
Place of PublicationUnited States
PublisherInstitute of Electrical and Electronics Engineers
Pages29-30
Number of pages2
ISBN (Electronic)979-8-3503-9936-3
ISBN (Print)979-8-3503-9937-0
DOIs
Publication statusPublished - 13 Mar 2023
Event5th Australian Microwave Symposium - Melbourne, Australia
Duration: 16 Feb 202317 Feb 2023

Conference

Conference5th Australian Microwave Symposium
Abbreviated titleAMS 2023
Country/TerritoryAustralia
CityMelbourne
Period16/02/2317/02/23

Keywords

  • differential mode
  • full 360°phase shift
  • low loss
  • Phase shifter pair

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