The electromagnetic interaction between a circular disk with finite conductivity and finite thickness and a coaxial circular loop of constant current is addressed here. The finite conductivity and thickness of the material disk lead to the adoption of suitable generalized boundary conditions, and the problem is thereby reduced to the solution of two sets of dual integral equations in the Hankel transform domain. Such equations are then solved by expanding the spectral unknowns in Neumann series of Bessel functions. An alternative formulation that is valid for purely conductive screens with no magnetic properties, which is computationally much faster, is proposed as well. The magnetic shielding effectiveness of the structure is studied in detail, pointing out its dependencies and possible critical situations.

A Dual Integral Equation Approach for Evaluating the Shielding of Thick Circular Disks against a Coaxial Loop / Lovat, G; Burghignoli, P; Araneo, R; Celozzi, S. - In: APPLIED SCIENCES. - ISSN 2076-3417. - 13:9(2023), pp. 1-13. [10.3390/app13095819]

A Dual Integral Equation Approach for Evaluating the Shielding of Thick Circular Disks against a Coaxial Loop

Lovat, G
;
Burghignoli, P;Araneo, R;Celozzi, S
2023

Abstract

The electromagnetic interaction between a circular disk with finite conductivity and finite thickness and a coaxial circular loop of constant current is addressed here. The finite conductivity and thickness of the material disk lead to the adoption of suitable generalized boundary conditions, and the problem is thereby reduced to the solution of two sets of dual integral equations in the Hankel transform domain. Such equations are then solved by expanding the spectral unknowns in Neumann series of Bessel functions. An alternative formulation that is valid for purely conductive screens with no magnetic properties, which is computationally much faster, is proposed as well. The magnetic shielding effectiveness of the structure is studied in detail, pointing out its dependencies and possible critical situations.
2023
dual integral equations; electromagnetic shielding; regularizing Galerkin methods
01 Pubblicazione su rivista::01a Articolo in rivista
A Dual Integral Equation Approach for Evaluating the Shielding of Thick Circular Disks against a Coaxial Loop / Lovat, G; Burghignoli, P; Araneo, R; Celozzi, S. - In: APPLIED SCIENCES. - ISSN 2076-3417. - 13:9(2023), pp. 1-13. [10.3390/app13095819]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1682311
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