A Broadband Reflection-Type Phase Shifter with Low Loss Variation Using Magic-T and Anti-Phase Reflection Loads

Jo Tamura, Hiroyuki Arai

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

3 Citations (Scopus)

Abstract

This paper presents a design of a broadband reflection-type phase shifter (RTPS) with a low insertion-loss variation. Unlike traditional RTPSs with a 90° hybrid coupler, the proposed one employs a Magic-T to enhance phase shifter performance. Additionally, anti-phase reflection loads are introduced, leading to compactness and broadband operation. The theoretical analysis reveals that the insertion loss is 0.4±0.3 dB in 50% fractional bandwidth, and the relative phase shift is 140°±10. The proposed RTPS is designed using a planar Magic-T, and the back-to-back configuration is tested for proof of concept. The results confirm the loss variation of less than 1.2 dB and the relative phase shift over 290° within 29% bandwidth.

Original languageEnglish
Title of host publication2023 IEEE/MTT-S International Microwave Symposium, IMS 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1054-1057
Number of pages4
ISBN (Electronic)9798350347647
DOIs
Publication statusPublished - 2023
Externally publishedYes
Event2023 IEEE/MTT-S International Microwave Symposium, IMS 2023 - San Diego, United States
Duration: 11 Jun 202316 Jun 2023

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
Volume2023-June
ISSN (Print)0149-645X

Conference

Conference2023 IEEE/MTT-S International Microwave Symposium, IMS 2023
Country/TerritoryUnited States
CitySan Diego
Period11/06/2316/06/23

Keywords

  • high-pass and low-pass phase shifters
  • Magic-T
  • reflection-type phase shifters
  • Tunable phase shifters

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