A Study of Electromagnetic Wave Absorptio Efficiency of Plain Fabric with Copper/Nickel/Aluminum Wire

• Main Authors: Huan-Shu Lee, 李歡恕
• Other Authors: Kuei-Chi Lee
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/02986753512773674166

碩士 === 中國文化大學 === 化學工程與材料工程學系奈米材料碩士班 === 103 === In this study, the main use of copper / nickel wire / aluminum and permeability characteristics of three kinds of conductive metal lines plus plain fabric analogy absorber network structure, and in the absorber added non-conductive, non-magnetic PE pipe and straw, the impact of the electromagnetic wave absorption efficiency of this experiment will be divided into three parts of the experiment, the first part of the copper and carbon fiber woven into plain weave fabric, and change gauge copper wire, copper wire diameter change, a different number of carbon fibers adding PE pipe, after the presence or absence of effect on the frequency of twisting, the second part is a nickel wire with a carbon fiber woven into a plain fabric, and nickel wire gauge changes, changing the nickel wire diameter, different number of carbon fibers, PE pipe is added, whether the impact on the frequency after twisting, the third part is aluminum and the carbon fiber woven into a plain fabric, and changing gauge aluminum, aluminum wire diameter change, a different number of carbon fibers, PE tube was added, with or without twisting After the effect on the frequency of three parts compared with each other, respectively, compare three kinds of metal wire gauge, wire diameter, different number of carbon fibers, with or without PE pipes, with or without twist, because of changes in five kinds of variable data rate and bandwidth and do comparative analysis, expected to make the best of the electromagnetic wave absorber. From the experimental results that, at the time the sample gauge copper wire 0.5cm, compared to the other two metals have the best absorption value reaches 28dB, and at 6GHz ~ 8.5GHz bandwidth widest range of diameter 0.5 cm when the electromagnetic wave absorption is best reached 34 dB, within 2cm number of carbon fibers 7 have the best wave absorption value was reached 30 dB, join PE pipe has the best absorption value was reached 28 dB, there was twisting sample up to 29 dB. 0.5cm in gauge aluminum sample when compared to 6GHz ~ 8.5GHz bandwidth in the widest range of electromagnetic wave absorption effect 0.5cm diameter at best, to achieve the best line in absorption values of nickel, to 26B, and 27 dB, within 2cm number of carbon fibers 7 have the best wave absorption value was reached 26 dB, join PE pipe has the best absorption value was reached 28 dB, there was a sample twisting up 28dB. Samples of nickel wire gauge 0.5cm in when compared to the other two metals have the best absorption value reaches 21dB, and the widest range at 4GHz ~ 6GHz bandwidth, 0.5cm diameter for the best results when the electromagnetic wave absorption achieve 22dB, within 2cm number of carbon fibers 7 have the best wave absorption value was reached 24 dB, join PE pipe has the best absorption value was reached 25 dB, there was a sample twisting up 27 dB.