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http://dx.doi.org/10.5515/KJKIEES.2016.27.8.735

Analysis of EMP Shielding Effectiveness and Flow of Fluid with Multi-Layered Waveguide-Below-Cutoff Array  

Kim, Sangin (Department of Electrical and Electronic Engineering, Yonsei University)
Kim, Yuna (Department of Electrical and Electronic Engineering, Yonsei University)
Pang, Seung-Ki (Department of Architecture, Kyunmin College)
Kim, Suk-Bong (Department of Civil Engineering and Environmental Sciences, Korea Military Academy)
Yook, Jong-Gwan (Department of Electrical and Electronic Engineering, Yonsei University)
Publication Information
Abstract
Increasing the total length of waveguide-below-cutoff array(WBCA) as it is used to the duct in order to enhance shielding effectiveness, the design could cause higher cost, higher levels of difficulties in construction and the interruption a flow velocity. The multi-layered WBCA can compensate for this problem, which can be designed by crossing each waveguide layer. By conducting simulations from 2-layer to 8-layer structure, it can be observed that the shielding effectiveness increases from 52 dB to 75 dB. Comparing with the original WBCA in a shape of mono layer rectangular, our proposed waveguide becomes similar with the original value as the number of crossing layer increases. In addition, the analysis with the flow of fluid in the duct installed multi-layered WBCA are required. We demonstrate this analysis by doing the flow of fluid simulation, and concluded that the multi-layered WBCA has loss of flow of fluid less than unit rectangular WBCA.
Keywords
EMP; Shielding Effectiveness; Waveguide; Multilayer; Flow of Fluid; Honeycomb;
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Times Cited By KSCI : 4  (Citation Analysis)
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