کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
820497 | 1469543 | 2013 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A microwave absorber based on strontium ferrite-carbon black-nitrile rubber for S and X-band applications
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Flexible and thin single layer microwave absorbers based on strontium ferrite-carbon black-nitrile rubber composites have been fabricated employing a specific recipe and their reflection loss characteristics were studied in the S (2-4Â GHz) and X-bands (8-12Â GHz). The incorporation of carbon black not only reinforces the rubber by improving the mechanical properties of the composite but also modifies the dielectric permittivity of the composite. Strontium ferrite when impregnated into a rubber matrix imparts the required magnetic permeability to the composite. The combination of strontium ferrite and carbon black can then be employed to tune the microwave absorption characteristics of the resulting composite. The complex dielectric permittivity and permeability were measured by employing a cavity perturbation technique. The microwave absorption characteristics of composites were modelled in that an electromagnetic wave incident normally on the metal terminated single layer absorber. The influence of filler volume fraction, frequency, absorber thickness on the bandwidth of absorption are discussed and correlated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Science and Technology - Volume 82, 18 June 2013, Pages 69-75
Journal: Composites Science and Technology - Volume 82, 18 June 2013, Pages 69-75
نویسندگان
S. Vinayasree, MA Soloman, Vijutha Sunny, P. Mohanan, Philip Kurian, MR Anantharaman,