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Characterization of magneto-dielectric materials by a rectangular waveguide using the 2D-FDTD method

Abstract: In this paper, a new measurement method is proposed to estimate simultaneously the complex permittivity and the complex permeability for a magneto-dielectric sample using a X-band rectangular waveguide WR90. The Sij-parameters at the reference planes in the rectangular waveguide loaded by a material sample are measured as a function of frequency using the E8634A Vector Network Analyzer. Also, by applying the two-dimensional finite difference in time domain (2D-FDTD), the expressions for these parameters as a function of complex permittivity and complex permeability are calculated. The Nelder-Mead algorithm is then used to estimate the complex permittivity and complex permeability by matching the measured and calculated Sij-parameters. This method has been validated by estimating, at the X-band, the complex permittivity and complex permeability of two materials such as FR4 Epoxy and Titanium Carbide powder (TiC).

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Autoría: Benali L.A., Tribak A., Terhzaz J., Mediavilla A.,

 Fuente: International Journal of Microwave and Optical Technology, 2021, 16(2), 168-174

Editorial: Electrical Engineering Department,University of Nevada

 Fecha de publicación: 01/03/2021

Nº de páginas: 7

Tipo de publicación: Artículo de Revista

ISSN: 1553-0396