Design of Phased Array Architectures for Full-Duplex Joint Communications and Sensing

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Abstract

The short wavelength of millimeter-waves in fifth-generation (5G) mobile communications enables the implementation of multi-element antenna arrays in relatively small space, e.g., in user devices and small base stations. Joint communication and sensing (JCAS) is a scheme which utilizes the beamsteering capabilities of the multi-element antenna arrays for simultaneously maintaining a communication link and sensing the surroundings with a radar beam and receiving it with the same device. The simultaneous transmission and reception requires a beam weighting algorithm which cancels the self-interference while at the same time maintaining the integrity of both beams. In this paper, the performance of different linear patch antenna array architectures is studied in terms of self-interference cancellation performance and obtained maximum gain in the beamsteering range. A mirror-beam problem in the self-interference cancellation algorithm for parallel arrays is studied and novel coupling randomization is introduced for the arrays to prevent the forming of the mirror beams.

Original languageEnglish
Title of host publication2021 15th European Conference on Antennas and Propagation (EuCAP)
PublisherIEEE
Number of pages5
ISBN (Electronic)9788831299022
ISBN (Print)9781728188454
DOIs
Publication statusPublished - 22 Mar 2021
Publication typeA4 Article in a conference publication
EventEuropean Conference on Antennas and Propagation - Dusseldorf, Germany
Duration: 22 Mar 202126 Mar 2021

Publication series

NameProceedings of the European Conference on Antennas and Propagation
ISSN (Print)2164-3342

Conference

ConferenceEuropean Conference on Antennas and Propagation
Country/TerritoryGermany
CityDusseldorf
Period22/03/2126/03/21

Keywords

  • antenna coupling
  • in-band full-duplex
  • Joint communications and sensing
  • phased array antennas

Publication forum classification

  • Publication forum level 1

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing
  • Instrumentation

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