کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1535988 | 1512636 | 2012 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microwave response of octagon-shaped parallel plates: Low-loss metamaterial
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Microwave response of octagon-shaped parallel plates: Low-loss metamaterial Microwave response of octagon-shaped parallel plates: Low-loss metamaterial](/preview/png/1535988.png)
چکیده انگلیسی
A very low-loss metamaterial formed by a pair of homogeneous octagon-shaped parallel plates separated by a dielectric substrate is presented to achieve simultaneous negative permittivity and permeability in the microwave region. The double-negative behavior with a high figure of merit (FOM=|Re(n)/Im(n)|=80 at 24.7 GHz) leads to reduced losses in this proposed metamaterial. The high quality feature of the structure can make the applications of the negative refractive index metamaterial more efficient and applicable, such as perfect- or super-lenses at microwave frequencies since FOM≈64.5, where the real part of the refractive index ≈−1 at 25.3 GHz.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 285, Issues 21–22, 1 October 2012, Pages 4549–4552
Journal: Optics Communications - Volume 285, Issues 21–22, 1 October 2012, Pages 4549–4552
نویسندگان
C. Sabah,