Title :
Magnetic Shielding of Apertures Loaded by Resistive Coating
Author :
Amore, Marcello D. ; De Santis, Valerio ; Feliziani, Mauro
Author_Institution :
Dept. of Electr. Eng., Sapienza Univ. of Rome, Rome, Italy
Abstract :
The paper deals with the numerical prediction of the magnetic shielding of a coated aperture in a perfectly conductive planar shield. The single layer or multilayer thin film resistive coating is characterized and homogenized by using the transmission line approach. The electromagnetic analysis is performed by two methods: 1) a lumped circuit approach with numerically calculated parameters; 2) a finite element method (FEM) approach using the impedance network boundary conditions (INBCs). The results obtained by the two methods in some test configurations are validated and discussed.
Keywords :
coating techniques; finite element analysis; lumped parameter networks; magnetic shielding; thin film circuits; transmission lines; coated aperture; conductive planar shield; electromagnetic analysis; finite element method approach; impedance network boundary conditions; lumped circuit approach; magnetic shielding; multilayer thin film resistive coating; numerical prediction; transmission line approach; Apertures; Coatings; Conductive films; Distributed parameter circuits; Electromagnetic analysis; Finite element methods; Magnetic multilayers; Magnetic shielding; Planar transmission lines; Thin film circuits; Apertures; equivalent lumped circuit; finite element method (FEM)-impedance network boundary conditions (INBCs); magnetic shielding effectiveness; thin film transparent coating;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2010.2044232
