FDTD evaluation of scattering by metallic objects in GTEM cells

Author

De Leo, R. ; Schiavoni, A.

Author_Institution

Dipartimento di Elettronica e Autom., Ancona Univ., Italy

Volume

141

Issue

4

fYear

1994

fDate

7/1/1994 12:00:00 AM

Firstpage

287

Lastpage

292

Abstract

The finite difference time domain (FDTD) technique, developed in a polar coordinate system, is used to analyse the scattering by metallic objects in a gigahertz transverse electromagnetic (GTEM) cell. The advantage of using the FDTD method is the noticeable mathematical simplification, with respect to the analytical approach, which allows one to treat general structures and electrical characteristics without further analytical effort, and use of computer resources. The analysis has been carried out both at discrete frequencies, to compare our results with those in the literature, and with pulse sources to extract, by means of a discrete Fourier transform, the frequency domain behaviour of the system. The measurements inside the GTEM cell show a good correlation with those made in anechoic chambers

Keywords

electromagnetic compatibility; electromagnetic wave scattering; electronic equipment testing; finite difference time-domain analysis; microwave measurement; EMC; FDTD evaluation; GTEM cells; anechoic chambers; boundary conditions; correlation; discrete Fourier transform; electrical characteristics; finite difference time domain technique; gigahertz transverse electromagnetic cell; mathematical simplification; metallic objects; polar coordinate system; pulse sources; radiated susceptibility testing; scattering;

fLanguage

English

Journal_Title

Science, Measurement and Technology, IEE Proceedings -

Publisher

iet

ISSN

1350-2344

Type

jour

DOI

10.1049/ip-smt:19941206

Filename

300346