A study of near-field imaging and diagnostic applications of surface equivalent current methods

Arslan Azhar, Thomas F. Eibert, Li Li

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

1 Scopus citations

Abstract

The utilization of surface equivalent current (SEC) methods in near-field imaging and diagnostics of flat scatterers with fine details is discussed. Of special interest is the ability to identify and locate electrically small physical changes on the scatterers by analyzing the equivalent surface current densities obtained by transforming the observed near fields. Using two test objects as scattering targets for an incident plane wave at 77 GHz, it is shown that sub-wavelength physical changes can even be localized using SEC methods. Finally, the need for an appropriate excitation method and measurement setup is discussed in the light of experimental results.

Original languageEnglish
Title of host publication2018 International Applied Computational Electromagnetics Society Symposium in Denver, ACES-Denver 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9780996007870
DOIs
StatePublished - 23 May 2018
Event2018 International Applied Computational Electromagnetics Society Symposium in Denver, ACES-Denver 2018 - Denver, United States
Duration: 25 Mar 201829 Mar 2018

Publication series

Name2018 International Applied Computational Electromagnetics Society Symposium in Denver, ACES-Denver 2018

Conference

Conference2018 International Applied Computational Electromagnetics Society Symposium in Denver, ACES-Denver 2018
Country/TerritoryUnited States
CityDenver
Period25/03/1829/03/18

Keywords

  • antenna diagnostics
  • equivalent sources
  • near-field imaging

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