Nonconvex phaseless near-field far-field transformation for electrically large problems

Alexander Paulus, Josef Knapp, Thomas F. Eibert

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

5 Scopus citations

Abstract

A phaseless near-field far-field transformation (NFFFT) based on nonconvex optimization and suitable for electrically large problems is presented. Features include efficient forward and adjoint operators taken from the fast irregular antenna field transformation algorithm (FIAFTA) and the memory limited L-Broyden, Fletcher, Goldfarb and Shannon (L-BFGS) method for the solution of the nonconvex optimization. Measurement results show the benefit of specialized probes, which effectively incorporate the knowledge of partial phase differences, for phaseless near-field measurements. The applicability of those probes and of the proposed nonconvex transformation algorithm to electrically large problems is verified by measured and simulated results.

Original languageEnglish
Title of host publicationIET Conference Publications
PublisherInstitution of Engineering and Technology
EditionCP741
ISBN (Electronic)9781785618161, 9781785618437, 9781785618468, 9781785618871, 9781785619427, 9781785619694, 9781839530036
ISBN (Print)9781785617911
DOIs
StatePublished - 2018
Event12th European Conference on Antennas and Propagation, EuCAP 2018 - London, United Kingdom
Duration: 9 Apr 201813 Apr 2018

Publication series

NameIET Conference Publications
NumberCP741
Volume2018

Conference

Conference12th European Conference on Antennas and Propagation, EuCAP 2018
Country/TerritoryUnited Kingdom
CityLondon
Period9/04/1813/04/18

Keywords

  • Electrically large
  • Inverse problem
  • Near-field far-field transformation
  • Phaseless

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