Characterization of relative complex permittivity and permeability for magneto-dielectric sheets

Ahmad Hosseinbeig*, Shubhankar Marathe, David Pommerenke

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A new method is developed to extract relative complex permittivity and permeability of magneto-dielectric sheets. Two test fixtures are used to separately extract electric and magnetic properties of the material under test (MUT). The unknown parameters corresponding to dispersion models of the complex permittivity and permeability of the magneto-dielectric sheet are optimized by comparing the measured |S21| of the test fixtures containing the MUT with the |S21| obtained from full-wave simulation. CST Microwave Studio is used to perform the simulations and optimization. The method is verified and the extracted electromagnetic properties of two ferrite sheet samples are presented. Also, the uncertainty of the system due to air gaps in the test fixtures is investigated.

Original languageEnglish
Article number8085184
Pages (from-to)1786-1794
Number of pages9
JournalIEEE Transactions on Electromagnetic Compatibility
Issue number6
Publication statusPublished - 1 Dec 2018
Externally publishedYes


  • Dispersion model
  • Ferrite
  • Material characterization
  • Optimization
  • Permeability
  • Permittivity

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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