scholarly journals Formulation for shielding effectiveness analysis of a rectangular enclosure with an electrically large aperture

2014 ◽  
Vol 63 (23) ◽  
pp. 234101
Author(s):  
Zhang Ya-Pu ◽  
Da Xin-Yu ◽  
Zhu Yang-Kun ◽  
Zhao Meng
Keyword(s):  
Shielding Effectiveness ◽  
Large Aperture ◽  
Rectangular Enclosure ◽  
Effectiveness Analysis

Shielding effectiveness analysis of rectangular cavity with aperture by modification and expansion of transmission line method

2013 ◽  
Vol 25 (9) ◽  
pp. 2355-2362 ◽  
Author(s):  
彭强 Peng Qiang ◽  
周东方 Zhou Dongfang ◽  
侯德亭 Hou Deting ◽  
余道杰 Yu Daojie ◽  
胡涛 Hu Tao ◽  
...  
Keyword(s):  
Transmission Line ◽  
Rectangular Cavity ◽  
Shielding Effectiveness ◽  
Line Method ◽  
Effectiveness Analysis ◽  
Transmission Line Method

Shielding Effectiveness Analysis of a Spherical Shield Made of Medium Conductivity Material against Low-Frequency Electric Field

2015 ◽  
Vol 734 ◽  
pp. 858-863
Author(s):  
Ming Yang Li ◽  
Chong Qing Jiao ◽  
Jing Kai Nie
Keyword(s):  
Electric Field ◽  
Low Frequency ◽  
Field Approximation ◽  
Static Field ◽  
Analytic Formula ◽  
Shielding Effectiveness ◽  
Effectiveness Analysis ◽  
Spherical Shield ◽  
Frequency Electric Field ◽  
Medium Conductivity

With quasi-static field approximation, an analytic formula is derived for shielding effectiveness analysis of a spherical shield made of medium conductivity material (10 S/m-1000 S/m) against low-frequency electric field. The effects of frequency, material conductivity, and shield dimensions on shielding effectiveness are investigated. It is shown that the shielding effectiveness decreases at first and then increases with the frequency increasing from DC to MHz if the thickness of the shield is large. However, the shielding effectiveness decreases versus the increase of frequency continuously if the thickness is small. The shielding effectiveness can be enhanced by increasing either the material conductivity or the shield thickness. This research is helpful for the evaluation of composite conductive material for electromagnetic shielding applications.

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