Modelling of pyramid absorbers used in EMC facilities

Author

Lubkowski, Grzegorz ; Ihsan, Zainul ; Adami, Christian ; Suhrke, Michael

Author_Institution

Nucl. & Electromagn. Effects, Fraunhofer INT, Euskirchen, Germany

fYear

2012

fDate

17-21 Sept. 2012

Firstpage

1

Lastpage

4

Abstract

In this work we show some numerical aspects related to the full-wave 3D simulations of absorber wall properties. Two problems are discussed: (i) characterization of the dielectric properties of the absorber medium and (ii) modelling of the absorber wall geometry terminating the EMC facility. It is shown that approximation of the constitutive properties of the absorber medium by Debye models with several relaxation terms can lead to a better accuracy than for a single term based Debye formula description. Regarding absorber wall geometry: multilayer models characterized by anisotropic permittivity distribution offer better approximation properties than isotropic multilayer models.

Keywords

electromagnetic compatibility; permittivity; Debye model; EMC facility; absorber wall geometry modelling; absorber wall property; anisotropic permittivity distribution; dielectric property; full-wave 3D simulation; multilayer model; pyramid absorber modelling; relaxation term; Approximation methods; Electromagnetic compatibility; Electromagnetic waveguides; Nonhomogeneous media; Numerical models; Permittivity; Permittivity measurement; Debye model; TEM waveguide; multilayer absorber model; numerical field simulation; pyramid absorber;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility (EMC EUROPE), 2012 International Symposium on

Conference_Location

Rome

ISSN

2325-0356

Print_ISBN

978-1-4673-0718-5

Type

conf

DOI

10.1109/EMCEurope.2012.6396686

Filename

6396686