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Design high selective microwave filter using fractal distribution of meta-materials in wave guide

تصميم مرشح ميكروي عالي الانتقائية باستخدام التوزع التجزيئي لشرائح المواد سالبة معامل الانكسار ضمن دليل الموجة

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 Publication date 2016
and research's language is العربية
 Created by Shamra Editor




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In last decade, many of researches have proposed to study materials with periodic structures,These structures can be engineered to realize novel electromagnetic properties and to achieve behaviors that are not found in naturally materials. These materials have negative permittivity and permeability .Those are called meta-material or Left Hand Material (LHM), They are fabricated, studied and analyzed within different applications of microwave and optical communication. Recently, the microwave engineering applications of artificial metamaterials have been widely discussed and various novel microwave components were achevid for example, filters, antennas and fiber optic. This paper studys and analyzes the reflection from fractal distribution of MMs layers in RHM medium, using the recursive method, and applies it in the design of microwave narrow band filters.

References used
HOSSAIN,M ,FARUQUE,M.R.I,." A New Wide-Band Double-NegativeMetamaterial for C- and S-Band Applications". MaterialsSwitzerland, Materials 8, 2015,pp.57-71
QIONG,H;LIN,S,S;YONG,S,Z."Manipulatingelectromagneticwaveswithmetamaterials Concept and microwaverealization".China phys Vol .23,Num.4,2014,pp.1-12
Saleh,A,S; Raveu,N." Transmission Peakat Lo Frequencies by a Fractal Distribution of MetamaterialsLayers in Free Space". Microwave and Optical technologyletters (MWOPL)France. vol.49, no.1, 2007,pp. 105-109
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Research over the past years has focused on electromagnetic waves and meta-materials. These structures are designed to give electromagnetic properties that cannot be produced by traditional, well known natural structures. Meta-materials obtain their electromagnetic properties from their structures, not from their components. Meta-materials have new properties that define different mechanisms for electromagnetic wave propagation. These materials have been studied theoretically and have been used in many applications, especially microwaves and photonic fields. This research depends on these kinds of material, explains them, and analyzes the electromagnetic properties that yield from putting columns from these slabs with negative permittivity and permeability coefficient (MMs) in a fractal distribution of a natural medium. This research also compares the resulting properties with the electromagnetic properties that yield natural materials distributed the same way. We use the HFSS simulator which depends on the finite element method for calculating transmission and reflection coefficient for these structures.
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