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[1]陳海燕,謝建良,周佩珩,等.電磁缺陷修復材料研究進展[J].中國材料進展,2013,(8):001-10.[doi:10.7502/j.issn.1674-3962.2013.08.05]
 Hai-Yan Chen,Jian-Liang Xie,Pei-Heng Zhou,et al.Research Development of Electromagnetic Discontinuities Repairing Materials[J].MATERIALS CHINA,2013,(8):001-10.[doi:10.7502/j.issn.1674-3962.2013.08.05]
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電磁缺陷修復材料研究進展()
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中國材料進展[ISSN:1674-3962/CN:61-1473/TG]

卷:
期數:
2013年第8期
頁碼:
001-10
欄目:
特約研究論文
出版日期:
2013-08-31

文章信息/Info

Title:
Research Development of Electromagnetic Discontinuities Repairing Materials
文章編號:
1674—3962 (2013)01-
作者:
陳海燕謝建良周佩珩陸海鵬鄧龍江*
(電子科技大學,國家電磁輻射控制材料工程技術研究中心,四川 成都 610054)
Author(s):
Hai-Yan Chen Jian-Liang Xie Pei-Heng Zhou and Hai-Peng Lu Long-Jiang Deng*
(University of Electronic Science and Technology of China, National Engineering Research Center of Electromagnetic Radiation Control Materials, Chengdu, 610054, China)
關鍵詞:
電磁缺陷漸變阻抗材料邊緣散射電磁缺陷修復材料
分類號:
TN34
DOI:
10.7502/j.issn.1674-3962.2013.08.05
文獻標志碼:
A
摘要:
研究了電磁缺陷修復材料在飛行器邊緣、縫隙等表面電磁缺陷散射控制中的應用,闡述了其原理和發展狀況。給出了表面電磁缺陷的基本定義,分析了其散射特點,并提出電磁缺陷修復原理及基本方法。電磁缺陷修復材料主要包括用于表面波抑制的磁性材料、用于窄縫隙保證電連續的導電材料和用于邊緣散射控制的漸變阻抗材料等三類,本文重點介紹了用于邊緣散射控制的漸變阻抗材料。該漸變阻抗材料基于圖形漸變頻率選擇表面的概念,加載于邊緣考慮平行極化和垂直極化兩種情況,并與邊緣鋸齒化和未加載情況進行比較。從研究情況來看,經過恰當的材料選取和合理的阻抗梯度設計,漸變阻抗材料可以有效控制邊緣散射,并能取得寬帶效果。最后展望了漸變阻抗材料在電磁散射及電磁輻射領域的應用前景。
Abstract:
The theory, application and development of electromagnetic discontinuities repairing materials in scattering controlling of electromagnetic discontinuities such as edge, gaps and grooves, and steps, are described in this paper. The definition and characteristic of surface electromagnetic discontinuities are analyzed, and the theory and methods for repairing electromagnetic discontinuities are also proposed. Electromagnetic discontinuities repairing materials including magnetic materials for suppression of surface wave, conductive materials for repairing the narrow gaps or grooves, and the tapered impedance materials for controlling edge scattering are discussed respectively, and one of which, the tapered impedance materials are illustrated particularly. The tapered resistive materials realized by geometric variation based on frequency-selective surfaces concepts is demonstrated having good suppression of edge scattering from a triangular metallic plate. Electromagnetic back-scattering of the as-prepared target from a triangular plate with edge tapered resistive sheet loading is proposed for both horizontal polarization and vertical polarization, and compared with that from the one of the same shape but loaded with serrated shaping or none resistive sheet on the edge. The results show that the tapered impedance materials can regulate effect edge scattering by choosing the appropriate materials and devising the reasonable gradient characteristic of the impedance. Some viewpoints of the tapered impedance material抯 future application in electromagnetic scattering and electromagnetic radiation domains are proposed

參考文獻/References:

References
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備注/Memo

備注/Memo:
基金項目:國家自然科學基金資助項目(59493300);教育部博士點基金資助項目(9800462)_____________________ 收稿日期: 2000-03-11;修訂日期:2000-03-06
更新日期/Last Update: 2013-08-09
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