The near-field shielding effectiveness of composite screens characterized by spatial periodicity along one dimension is investigated in the presence of an electric line source (i.e., an aperiodic source) placed in proximity of the screen. The metal strip grating and the wire-medium screen supported by a dielectric board are studied as examples of one-dimensional periodic screens. Both full-wave analyses and approximate homogeneous models are adopted in order to investigate the limits of the homogenization techniques for the study of the interaction between a finite source and a periodic screen. Moreover, differences in shielding-effectiveness values for such periodic structures are discussed when considering finite-source or plane-wave excitations.

Shielding effectiveness of one-dimensional periodic composite screens in the presence of electric line sources: Full-wave analysis and limits of homogenization / Lovat, Giampiero. - ELETTRONICO. - (2009), pp. 95-98. (Intervento presentato al convegno 2009 IEEE EMC Europe Workshop tenutosi a Athens, Greece nel 11-12 June 2009) [10.1109/EMCEUROPE.2009.5189710].

Shielding effectiveness of one-dimensional periodic composite screens in the presence of electric line sources: Full-wave analysis and limits of homogenization

LOVAT, GIAMPIERO
2009

Abstract

The near-field shielding effectiveness of composite screens characterized by spatial periodicity along one dimension is investigated in the presence of an electric line source (i.e., an aperiodic source) placed in proximity of the screen. The metal strip grating and the wire-medium screen supported by a dielectric board are studied as examples of one-dimensional periodic screens. Both full-wave analyses and approximate homogeneous models are adopted in order to investigate the limits of the homogenization techniques for the study of the interaction between a finite source and a periodic screen. Moreover, differences in shielding-effectiveness values for such periodic structures are discussed when considering finite-source or plane-wave excitations.
2009
2009 IEEE EMC Europe Workshop
Aperiodic source; Homogenization; metafilms; metamaterials; Near field; Periodic Structures; Shielding effectiveness
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Shielding effectiveness of one-dimensional periodic composite screens in the presence of electric line sources: Full-wave analysis and limits of homogenization / Lovat, Giampiero. - ELETTRONICO. - (2009), pp. 95-98. (Intervento presentato al convegno 2009 IEEE EMC Europe Workshop tenutosi a Athens, Greece nel 11-12 June 2009) [10.1109/EMCEUROPE.2009.5189710].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/216867
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