平板式針織護幕電磁波吸收體

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Please use this identifier to cite or link to this item: https://irlib.pccu.edu.tw/handle/987654321/27474

Title:	平板式針織護幕電磁波吸收體 The Slab of Knitted Fabric Screen on Electromagnetic-Wave Absorption
Authors:	林佳詩
Contributors:	材料科學與奈米科技研究所
Keywords:	電磁波吸收體反射損失阻抗 Electromagnetic-Wave Reflection loss Impedance Absorption
Date:	2006
Issue Date:	2014-06-16 13:33:53 (UTC+8)
Abstract:	本研究主要利用導電纖維（不鏽鋼混紡紗），製作為平板式吸收體之導電護幕層，此部份的電磁波吸原理：是利用導電針織物之材料結構特性，使電磁波穿透護幕層內能降低反射量，達到有效之電磁波破壞性干涉、多重反射、共振吸收等作用。再將錳鋅鐵氧磁體粉墨製作為磁損耗層，以粉末含量為實驗控制變因，使電磁波入射波在磁損耗層內進行衰減、共振作用。最後將進行本研究護幕層與磁損耗層吸收體之整合，將不同表面阻抗、材料，針圈規格之針織護幕與不同含量之磁損耗層匹配測試。本研究最終目的，改良以往傳統之平板式電磁波吸收體為達電磁吸收效能高及吸收頻寬寬廣之特性。 This research is to use conductive fiber to be an electromagnetic-wave absorption screen layer. This theory of electromagnetic-wave absorption is based on the knitted structure ,which the knitted structure can make electromagnetic-wave interference ,diffraction and reflection on the screen layer. The MnZn Ferrite as the magnetic absorber layer, which distance of material and content of powder are controlled; the parameters will effect the attenuation of the electromagnetic-wave when the electromagnetic-wave transmits the magnetic absorber layer. Finally, the screen layer composites with magnetic absorber layer to have wide absorption broadband and fine attenuation ratio of electromagnetic-wave.
Appears in Collections:	[Department of Chemical & Materials Engineering] thesis

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