A 28 GHz Optically Synchronized CMOS Phased Array with an Integrated Photodetector

Matan Gal-Katziri, Craig Ives, Armina Khakpour, Ali Hajimiri

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

1 Scopus citations

Abstract

This paper presents a modular 28 GHz phased array. Each of its $\mathrm{2}\times \mathrm{4}$-modules is driven by a CMOS RFIC, whose RF output is optically synchronized using a fully integrated silicon photodiode. The photocurrent is amplified using a tuned injection-locked TIA to serve as the reference for an on-chip synthesizer, which generates and distributes the RF signal to the PAs that drive the antennas. We demonstrate beam steering, data transmission, and synchronization of array modules up to 25m away from the clock source.

Original languageEnglish
Title of host publication2021 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages111-114
Number of pages4
ISBN (Electronic)9781665425490
DOIs
StatePublished - 7 Jun 2021
Externally publishedYes
Event2021 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2021 - Virtual, Atlanta, United States
Duration: 20 Jun 202125 Jun 2021

Publication series

NameDigest of Papers - IEEE Radio Frequency Integrated Circuits Symposium
Volume2021-June
ISSN (Print)1529-2517

Conference

Conference2021 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2021
Country/TerritoryUnited States
CityVirtual, Atlanta
Period20/06/2125/06/21

Keywords

  • CMOS
  • Injection-locked oscillators
  • Optoelectronics
  • Phased arrays
  • Photodiodes
  • Silicon photonics

ASJC Scopus subject areas

  • Engineering (all)

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