PSNet
Susceptibility Analysis of Arbitrarily Shaped 2-D Slotted Screens
Using a Hybrid Generalized Scattering Matrix Finite-element Technique by J
V B Tejedor, L Nuno & M F Battaller , Spanish authors in IEEE Transactions
on Electromagnetic Compatibility, Vol 40, No 1, February 1998
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
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 scree, provided that the
fields do not vanish near the aperture.
Index Terms: Electromagnetic coupling, finite-element methods,
scattering matrices, shielding.
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