Using Planar Probe Array Near Field Measurement to Obtain Accurate Far Field Antenna Pattern Efficiently

Heng Chen, Tapan K. Sarkar

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

Abstract

The objective of this paper is to illustrate that using a planar probe array over the measurement plane to do the near field measurements and applying computational electromagnetics method rather than the classical Fourier base methods to do the near-field (NF) to far-field (FF) transformation can obtain accurate far field antenna pattern efficiently. Also, in this approach there is no need to incorporate probe correction unlike in the existing approaches. This is accomplished by solving for the equivalent magnetic current over a plane near the original antenna source and then employing the method of moments approach to solve for the equivalent currents. In this methodology there is no need to satisfy the Nyquist sampling criteria and a super resolution can be achieved in the solution of the equivalent magnetic current to predict the operation of the antenna. The two components of the equivalent currents can be solved independently from the two components of the measured electric fields. Sample numerical results are presented to illustrate the potential of a novel planar near field to far field transformation for the planar near field measurement technique.

Original languageEnglish (US)
Title of host publication2019 IEEE International Conference on Computational Electromagnetics, ICCEM 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538671115
DOIs
StatePublished - Mar 2019
Event5th IEEE International Conference on Computational Electromagnetics, ICCEM 2019 - Shanghai, China
Duration: Mar 20 2019Mar 22 2019

Publication series

Name2019 IEEE International Conference on Computational Electromagnetics, ICCEM 2019 - Proceedings

Conference

Conference5th IEEE International Conference on Computational Electromagnetics, ICCEM 2019
CountryChina
CityShanghai
Period3/20/193/22/19

Keywords

  • Antenna diagnostics
  • Measurements without probe correction
  • Near Field to Far Field Transformation
  • equivalent currents
  • integral equations
  • source reconstruction method (SRM)
  • super-resolution reconstruction

ASJC Scopus subject areas

  • Computational Mathematics
  • Electrical and Electronic Engineering
  • Instrumentation
  • Radiation

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  • Cite this

    Chen, H., & Sarkar, T. K. (2019). Using Planar Probe Array Near Field Measurement to Obtain Accurate Far Field Antenna Pattern Efficiently. In 2019 IEEE International Conference on Computational Electromagnetics, ICCEM 2019 - Proceedings [8779025] (2019 IEEE International Conference on Computational Electromagnetics, ICCEM 2019 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/COMPEM.2019.8779025