Analysis for shielding effectiveness of infinite metal plate with arrayed apertures using semi-analytical FDTD

2003 ◽  
Author(s):  
Bao Yongfang ◽  
Lu Yinghua
Keyword(s):  
Metal Plate ◽  
Shielding Effectiveness

scholarly journals Optically transparent and very thin structure against electromagnetic pulse (EMP) using metal mesh and saltwater for shielding windows

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Duy Tung Phan ◽  
Chang Won Jung
Keyword(s):  
Electromagnetic Pulse ◽  
Low Cost ◽  
High Energy ◽  
Metal Plate ◽  
Optical Transparency ◽  
Shielding Effectiveness ◽  
Concrete Wall ◽  
Metal Mesh ◽  
Wide Range ◽  
Optically Transparent

AbstractAn electromagnetic pulse (EMP) with high energy can damage electronic equipment instantly within a wide range of thousands of kilometers. Generally, a metal plate placed inside a thick concrete wall is used against an EMP, but it is not suitable for an EMP shielding window, which requires not only strong shielding effectiveness (SE) but also optical transparency (OT). In this paper, we propose a very thin and optically transparent structure with excellent SE for EMP shielding window application. The proposed structure consists of a saltwater layer held between two glass substrates and two metal mesh layers on the outside of the glass, with a total thickness of less than 1.5 cm. The SE and OT of the structure are above 80 dB and 45%, respectively, which not only meet the requirement of EMP shielding for military purposes but also retain the procedure of good observation. Moreover, the OT of the structure can be significantly improved using only one metal mesh film (MMF) layer, while the SE is still maintained high to satisfy the required SE for home applicants. With the major advantages of low cost, optical transparency, strong SE, and flexible performance, the proposed structure can be considered a good solution for transparent EMP shielding windows.

Analysis of Electromagnetic Shielding Effectiveness of Metal Material

2012 ◽  
Vol 538-541 ◽  
pp. 655-659 ◽  
Author(s):  
Long Fei Liu ◽  
Qi Shan Zhang
Keyword(s):  
Design Method ◽  
Metal Plate ◽  
Electromagnetic Shielding ◽  
Frequency Region ◽  
Shielding Effectiveness ◽  
Metal Material ◽  
Wave Interference ◽  
Metallic Mesh ◽  
Electromagnetic Shielding Effectiveness ◽  
Test Result

Due to obvious predominances of airing, daylighting and so on, metallic mesh is widely applied in electromagnetic shielding projects. In this paper, we introduce the EMI technique, which the metal material is applied in shielding the strong electromagnetic wave interference on some frequency region in field space, and analyze the electromagnetic shielding principle of the metal plate and the metallic mesh. The design method and the actual manufacture about the shielding system are also given. The test result shows that the system’s shielding effectiveness is practical and effective.

Interface Microstructure and Deformation Behavior of an Al-Cu Dissimilar Metal Plate

2013 ◽  
Vol 51 (7) ◽  
pp. 535-545 ◽  
Author(s):  
Kwang-Seok Lee ◽  
Su-Eun Lee ◽  
Jung Su Kim ◽  
Min Jung Kim ◽  
Dong Hyun Bae ◽  
...  
Keyword(s):  
Deformation Behavior ◽  
Metal Plate ◽  
Interface Microstructure ◽  
Dissimilar Metal

A New CCM (Carbon Composite Matrix) Material with Improved Shielding Effectiveness for X-Band Application

2010 ◽  
Vol E93-C (6) ◽  
pp. 929-931 ◽  
Author(s):  
Yeong-Chul CHUNG ◽  
Kyung-Won LEE ◽  
Ic-Pyo HONG ◽  
Kyung-Hyun OH ◽  
Jong-Gwan YOOK
Keyword(s):  
Matrix Material ◽  
Carbon Composite ◽  
Shielding Effectiveness ◽  
Composite Matrix ◽  
X Band
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