학술논문

Notes on “Analytical Model for Low-Frequency Magnetic Field Penetration Through a Circular Aperture on a Perfect Electric Conductor Plate”
Document Type
Periodical
Source
IEEE Transactions on Electromagnetic Compatibility IEEE Trans. Electromagn. Compat. Electromagnetic Compatibility, IEEE Transactions on. 66(2):640-643 Apr, 2024
Subject
Fields, Waves and Electromagnetics
Engineered Materials, Dielectrics and Plasmas
Apertures
Magnetic shielding
Magnetic noise
Electric potential
Vectors
Surface treatment
Power systems
Circular aperture
magnetic shielding
perfect electric conductor (PEC)
Language
ISSN
0018-9375
1558-187X
Abstract
Recently, the magnetic field penetration through a circular aperture in a thin perfect electric conductor when excited by a loop antenna placed coaxially with the aperture is solved analytically in the quasi-static frame. However, the analytical solution is only applicable to the longitudinal component. Here, we present two approaches to obtain the transverse component. The first one belongs to the direct extension of the earlier results, but lengthy mathematic derivations are performed to solve a complex integral. The second one utilizes the magnetic vector potential formulation and then converts it into a known scalar potential problem.