A 28-GHz Butler Matrix Based Switched Beam-Forming Network with Phase Inverting Switch for Dual-Port Excitation in 28-nm CMOS

Youngjoo Lee, Bosung Suh, Byung Wook Min

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

2 Citations (Scopus)

Abstract

This paper demonstrates a 28-GHz $\mathbf{4}\times \mathbf{4}$ Butler matrix based switched beam-forming network with phase inverting switch for dual-port excitation in 28-nm CMOS. The beam-forming network consists of a SPDT reconfigurable switch network (RSN), two SPDT phase inverting switch networks (PSNs) and a Butler matrix. By using the SPDT RSN and SPDT PSNs, the proposed beam-forming network provides dual-port excitation modes without three crossovers and 180° delay lines which are required for a SP4T RSN. The total insertion loss of beam-forming network is around 8.7 dB at 28 GHz, excluding the power division loss of the Butler matrix. From the array factors based on the measured S-parameters, the proposed beam-forming network can generate 7 beams, $\pm \mathbf{14.9}^{\circ}\boldsymbol{,} \pm \mathbf{48.5}^{\circ}$ in single-port excitation modes, and $\mathbf{0}^{\circ}, \pm \mathbf{28.6}^{\circ}$ in dual-port excitation modes.

Original languageEnglish
Title of host publication2022 IEEE/MTT-S International Microwave Symposium, IMS 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1002-1005
Number of pages4
ISBN (Electronic)9781665496131
DOIs
Publication statusPublished - 2022
Event2022 IEEE/MTT-S International Microwave Symposium, IMS 2022 - Denver, United States
Duration: 2022 Jun 192022 Jun 24

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
Volume2022-June
ISSN (Print)0149-645X

Conference

Conference2022 IEEE/MTT-S International Microwave Symposium, IMS 2022
Country/TerritoryUnited States
CityDenver
Period22/6/1922/6/24

Bibliographical note

Publisher Copyright:
© 2022 IEEE.

All Science Journal Classification (ASJC) codes

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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