کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7213138 | 1469408 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microwave absorption enhancement of rectangular activated carbon fibers screen composites
ترجمه فارسی عنوان
افزایش جذب مایکروویو از کامپوزیت های صفحه نمایش کربن فعال مستطیل شکل
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
چکیده انگلیسی
The radar absorbing materials composited of activated carbon fibers (ACF) as wave-absorber and glass fibers (GF) as impedance modifier were successfully prepared. The structure parameters of rectangular ACF felt screen, the influences of GF-piece and the reflection properties were investigated. It was observed that the effective bandwidth (the reflection loss below â10 dB) increased with the aspect ratio (a/b) increasing, but decreased with aperture spacing (δ) increasing. A double absorption peak (16.1 dB and 14.2 dB) for the optimized configuration (a/b = 3, δ = 5 mm, a = 30 mm) appeared at 5.8 GHz and 16.9 GHz, and a wide absorption bandwidth (4-17.6 GHz) could be achieved. When a 30 mm Ã 15 mm rectangular aperture was filled by GF-piece of 20 mm Ã 10 mm, the effective bandwidth was improved to 12.1 GHz. The composites with a wide absorption bandwidth could be achieved via designing the proper element parameters and adjusting the composition of ACF and GF.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part B: Engineering - Volume 77, August 2015, Pages 371-378
Journal: Composites Part B: Engineering - Volume 77, August 2015, Pages 371-378
نویسندگان
Yongju Zang, Shaoxu Xia, Liwei Li, Guizhi Ren, Qiping Chen, Haiyu Quan, Qilin Wu,