کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1532843 1512271 2010 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Towards active dispersionless ENZ metamaterial for cloaking applications
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Towards active dispersionless ENZ metamaterial for cloaking applications
چکیده انگلیسی

The majority of the designs of electromagnetic cloaks presented in the current literature require a metamaterial, the relative permittivity and/or permeability of which are smaller than one. Due to basic dispersion constraints, such permittivity (or permeability) can exist only within some restricted frequency band. This fact causes a passive electromagnetic cloak to be an inherently narrowband device. Here, it is shown both numerically and experimentally that the basic dispersion constraints of any passive medium might be overcome by using an active transmission line-based metamaterial. This type of metamaterial appears promising for the design of broadband cloaking devices.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Metamaterials - Volume 4, Issues 2–3, August–September 2010, Pages 89–97
نویسندگان
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