A low‐profile 28‐GHz Rotman lens‐fed array beamformer for 5G conformal subsystems

Ardavan Rahimian, Qammer H. Abbasi, Akram Alomainy, Yasir Alfadhl

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This paper reports on the first demonstration of an experimental millimeter‐wave (mm‐wave) beamforming based on the conformal Rotman lens. The passive switched‐beam network is intended for operation in the 28‐GHz band, covering the 18‐38 GHz range, for the deployment in the fifth generation (5G) subsystems. The primary objective of this work is to conduct the feasibility of designing a beamforming network (BFN) based on the liquid‐crystal polymer substrate, and to evaluate the performances in terms of the scattering (S)‐parameters and surface currents for the proposed flexural case of the convex‐circumferential bending. A prototype has been accurately fabricated, and a setup has also been deployed to conduct the measurements. The performance in terms of the linear progressive phase behavior, as the main figure of merit, has been shown. The BFN exhibits significant characteristics to be used as a low‐profile unit of the transceivers with the in‐built beam steering for the conformal 5G subsystems.
LanguageEnglish
Pages671-675
Number of pages5
JournalMicrowave and Optical Technology Letters
Volume61
Issue number3
Early online date3 Dec 2018
DOIs
Publication statusPublished - 31 Mar 2019

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beamforming
lenses
profiles
beam steering
transmitter receivers
figure of merit
millimeter waves
coverings
liquid crystals
prototypes
polymers
scattering

Keywords

  • 5G, beamforming network
  • Rotman lens
  • conformal antenna array
  • mm-wave
  • wireless subsystem

Cite this

Rahimian, Ardavan ; Abbasi, Qammer H. ; Alomainy, Akram ; Alfadhl, Yasir. / A low‐profile 28‐GHz Rotman lens‐fed array beamformer for 5G conformal subsystems. In: Microwave and Optical Technology Letters. 2019 ; Vol. 61, No. 3. pp. 671-675.
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A low‐profile 28‐GHz Rotman lens‐fed array beamformer for 5G conformal subsystems. / Rahimian, Ardavan; Abbasi, Qammer H.; Alomainy, Akram; Alfadhl, Yasir.

In: Microwave and Optical Technology Letters, Vol. 61, No. 3, 31.03.2019, p. 671-675.

Research output: Contribution to journalArticle

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