Sub-THz beam-forming using near-field coupling of distributed active radiator arrays

Kaushik Sengupta, Ali Hajimiri

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

28 Scopus citations

Abstract

The paper demonstrates Distributed Active Radiator (DAR) arrays as a novel way of beam-forming at sub-THz frequencies in CMOS. Near-field coupling is shown to be a scalable method for mutually locking multiple DARs to beam-form and generate high EIRP. As proofs of concept, 2x1 and 2x2 arrays of DARs, mutually synchronized through near-field coupling, are implemented in 65nm bulk CMOS. The paper also shows beam-forming near 200GHz for the 2x2 array with broadside EIRP of -1.9 dBm, total radiated power of 54 μW and beam-scanning range for approximately ± 30° in each of the two orthogonal directions in 2D space.

Original languageEnglish (US)
Title of host publication2011 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2011 - Digest of Papers
DOIs
StatePublished - Aug 1 2011
Externally publishedYes
Event2011 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2011 - Baltimore, MD, United States
Duration: Jun 5 2011Jun 7 2011

Publication series

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

Other

Other2011 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2011
CountryUnited States
CityBaltimore, MD
Period6/5/116/7/11

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Keywords

  • CMOS
  • VCO
  • beam-steering
  • doubler
  • near-field
  • oscillator
  • radiation
  • sub-millimeter wave
  • terahertz

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  • Cite this

    Sengupta, K., & Hajimiri, A. (2011). Sub-THz beam-forming using near-field coupling of distributed active radiator arrays. In 2011 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2011 - Digest of Papers [5940677] (Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium). https://doi.org/10.1109/RFIC.2011.5940677