Susceptibility analysis of arbitrarily shaped 2-D slotted screens using a hybrid generalized scattering matrix finite-element technique

Author

Tejedor, Juan V Balbastre ; Nuño, Luis ; Bataller, Miguel Ferrando

Author_Institution

Dept. de Commicaciones, Univ. Politecnica de Valencia, Spain

Volume

40

Issue

1

fYear

1998

fDate

2/1/1998 12:00:00 AM

Firstpage

47

Lastpage

54

Abstract

The electromagnetic susceptibility (EMS) inside slotted screens has been studied using a hybrid technique. The screen is characterized by a generalized admittance or impedance matrix, computed using the finite element method (FEM), which is then combined with a modal solution in free-space. The scattering matrix for the screen can then be easily computed. As a practical application, the electrical performance of a slotted square envelope has been studied. In general, it is shown that coupling to the interior of slotted screens is maximized at frequencies corresponding to resonances of the shorted screen, provided that the fields do not vanish near the aperture

Keywords

S-matrix theory; electric admittance; electric impedance; electromagnetic interference; electromagnetic shielding; electromagnetic wave scattering; finite element analysis; matrix algebra; 2D slotted screens; EM coupling; EM fields; EM shielding; EMI protection; FEM; electrical performance; electromagnetic susceptibility; finite element method; free-space; generalized admittance matrix; generalized impedance matrix; hybrid generalized scattering matrix finite-element; modal solution; resonance frequencies; shorted screen; slotted square envelope; susceptibility analysis; Admittance; Boundary conditions; Circuits; Cutoff frequency; Electromagnetic scattering; Finite element methods; Impedance; Medical services; Resonance; Transmission line matrix methods;

fLanguage

English

Journal_Title

Electromagnetic Compatibility, IEEE Transactions on

Publisher

ieee

ISSN

0018-9375

Type

jour

DOI

10.1109/15.659519

Filename

659519