顆粒媒質(zhì)等效電磁參數(shù)的研究
STUDY OF EFFECTIVE ELECTROMAGNETIC PARAMETERS OF GRANULAR MEDIA
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摘要: 本文根據(jù)強擾動理論,導(dǎo)出了隨機取向顆粒混合媒質(zhì)等效電磁參數(shù)的計算方法。將這一理論應(yīng)用于吸波材料的研究,找出了吸收劑粒子的最佳外形;獲得了多粒子外形鐵氧體吸波材料等效介電常數(shù)和等效磁導(dǎo)率的計算公式。測試數(shù)據(jù)表明,理論計算與實際測量值吻合得很好。
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關(guān)鍵詞:
- 顆粒媒質(zhì); 吸波材料; 介電常數(shù); 磁導(dǎo)率; 強擾動理論
Abstract: Based on the strong fluctuation theory, the calculating method for effective electromagnetic parameters of srochastically oriented granular media is derived. Applying the theory to study absorbed materials, the optimum shape of absorbed particles in antiradar coat-multiple shape ferrite absorbed materials is ober effective permittivity and permeability of multiple shape ferrite absorbed materials is obtained. The measured results are in good agree-ment with the calculating ones. -
Jia Baofu, Liu Shuzhang, Liu Weigan, The electromagnetic wave scattering by strong fluctuation random media, ISRAMT89, Beijing,(1989), pp. 157-160.[2]V. Varadan, IEEE Trans. on MTT, MTT-34(1986)2, 251-258.[3]賈寶富,強擾動理論及其在隱身用吸波材料研究中的應(yīng)用,電子科技大學(xué)博士論文,1989年.[4] 王連祥,數(shù)學(xué)手冊,人民教育出版社,1979年,第330頁.[4]L. Tsang, J. A. Kong, Rvdio Science, 16 (1981)3,303-320.[5]王俊山,材料的電磁參數(shù)及其對微波吸收材料吸收性能的影響,骯空航天部第703研究所碩士論文,1988年. -
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