| 摘要: | 本研究主要利用銅線／鎳線／鋁線3種金屬線的導電與導磁特性再加上平紋織物的類比網路吸收體結構，並於吸收體中加入不導電、不導磁PE管，對電磁波吸收效益之影響。本實驗將實驗分成三個部分，第一個部分為銅線與碳纖維織成平紋織物，並且改變銅線經紗隔距、改變銅線線徑、不同碳纖維根數、加入PE管、有/無加撚後各變因對電磁波頻率的影響，第二個部分為鎳線與碳纖維織成平紋織物，並且改變鎳線經紗隔距、改變鎳線線徑、不同碳纖維根數、加入PE管、有無加撚後各變因對電磁波頻率的影響，第三個部分為鋁線與碳纖維織成平紋織物，並且改變鋁線經紗隔距、改變鋁線線徑、不同碳纖維根數、加入PE管、有/無加撚後對各變因電磁波頻率的影響。三個部分互相比較，分別比較3種金屬線的經紗隔距、線徑、不同碳纖維根數，有無PE管、有/無加撚，5種變因的數據與電磁波頻率的變化，並做比對分析，期望做出最佳的電磁波吸收體。由實驗結果得知，銅線的試片在隔距0.5cm時，相較於其他兩種金屬有最好的吸收值，達到28dB，且在6GHz~8.5GHz頻寬範圍最廣;線徑為0.5cm時電磁波吸收值最佳，達到34 dB;2cm內碳纖維根數7根有最好的電磁波吸收值，達到30 dB ;加入PE管有最好的吸收值，達到28 dB;有加撚的試片達29 dB。鋁線的試片在隔距0.5cm時，相較於鎳線最好的吸收值，達到26dB，且在6GHz~8.5GHz頻寬範圍最廣;線徑為0.5cm時電磁波吸收效果最佳，達到27 dB;2cm內碳纖維根數7根有最好得電磁波吸收值，達到26 dB;加入PE管有最好得吸收值，達到28 dB;有加撚的試片達28dB。鎳線的試片在隔距0.5cm時，相較於其他兩種金屬有最好的吸收值，達到21dB，且在4GHz~6GHz頻寬範圍最廣;線徑為0.5cm時電磁波吸收值最佳，達到22dB;2cm內碳纖維根數7根有最好的電磁波吸收值，達到24 dB;加入PE管有最好的吸收值，達到25 dB;有加撚的試片達27 dB。
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. |
