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Content Provider | IEEE Xplore Digital Library |
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Author | Zhibin Zhao Mingxia Zhang Xiang Cui Lin Li |
Copyright Year | 1965 |
Abstract | Based on the method of moment (MOM), a new method is developed to evaluate the electromagnetic shielding effectiveness of the rectangular metal enclosure with aperture covered with wire grid. The wire grid is modeled as thin wire, and the currents on the wire segments, which are taken as unknowns, are modeled by triangular basic functions. In order to expand the unknown electric currents on the surface of the cavity, Rao-Wilton-Glisson (RWG) basic functions are used on the surface patches to model the concerned objects. In terms of the continuity of the tangential electric fields on the surface of conductive plane and thin wire, a set of equations can be established. From the equations set, the currents on the surface patches and wire grids can be obtained. The accurate shielding effectiveness of the rectangular enclosure of metal structure with apertures covered with wire grid can be determined. By comparing the calculation with measurement results, the method is validated. Finally, the shielding performance of a protection cell in a practical substation is analyzed as an application. |
Sponsorship | IEEE Magnetics Society |
Starting Page | 1068 |
Ending Page | 1071 |
Page Count | 4 |
File Size | 218701 |
File Format | |
ISSN | 00189464 |
Volume Number | 45 |
Issue Number | 3 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2009-03-01 |
Publisher Place | U.S.A. |
Access Restriction | One Nation One Subscription (ONOS) |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Wire Apertures Electromagnetic fields Equations Electromagnetic shielding Substation protection Moment methods Current Electromagnetic measurements Performance analysis numerical analysis electromagnetic shielding moment methods |
Content Type | Text |
Resource Type | Article |
Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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