Analysis of a multimode transmission line model of the shielding effectiveness of enclosures with apertures |
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| Authors: | LI Yong ming ZHENG Chun xu HAO Zhan duo LIU Guang ming |
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| Affiliation: | State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044,P. R. China;State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044,P. R. China;Xuji Power Co.Ltd., Xuchang 461000,Henan, P. R. China;Liaoning Pushihe Pumped Storage Co.Ltd., Dandong 118216, Liaoning, P. R. China |
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| Abstract: | The equivalent transmission line method is extended to multi-transverse electric modes of cavity which are introduced by aperture coupling, and it is used to analyze the shielding effectiveness of rectangular enclosures with apertures. The multimode transmission line method is verified by HFSS(High Frequency Structure Simulator). The results show that higher-order mode is essential to obtain an accurate shielding effectiveness of rectangular enclosure on wide frequency domain. Below the frequency of 1 GHz, nearer to the slot, the impact of higher-order mode on the shielding effectiveness is greater in the place mear the slot. Higher-order mode leads to a better shielding effectiveness. |
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| Keywords: | transmission line multimode apertures shielding effectiveness enclosures |
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