Shielding effectiveness through narrow slots in dual conducting screens

IEICE Electronics Express

Ki-Chai Kim¹  Kwang-Sik Lee¹  Wonzoo Park¹ 

[1] Department of Electrical Engineering, Yeungnam University

关键词: dual plate;    shielding effectiveness;    narrow slot;    incident plane wave;   

DOI  :  10.1587/elex.10.20130750

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(12)Cited-By(1)This paper presents the electric shielding effectiveness (SE) of a dual metallic wall with narrow slots when the plane wave is incident. In the analysis, integral equations for aperture electric fields on slots are derived and solved by applying Galerkin’s method of moments (MoM). The numerical results show that plane-wave SE depends on both slot lengths and plate spacing for a given frequency. Plane wave SE fluctuates with the spacing of the plate, and the fluctuation period is about 0.5λ. A high level of electric SE can be obtained for small slots and low frequencies. Also obtained is the electric SE below 0dB when the plate spacings are smaller than 0.1λ. Experimental measurements are also presented to validate the theory.

【 授权许可】

Unknown