Metamalzeme tabanlı çok bantlı enerji hasadı uygulaması

Bakır, Mehmet

doi:10.25092/baunfbed.433960

Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi

2018

DOI: 10.25092/baunfbed.433960

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Metamalzeme tabanlı çok bantlı enerji hasadı uygulaması

Mehmet Bakır¹

Abstract: Özet Bu çalışmada, değişik boyutlu halka rezonatörlerinden oluşan mükemmel sinyal emici özellik gösteren bir metamalzeme enerji hasadı uygulaması için Metamaterial based multiband energy harvesting application AbstractIn this study, perfect metamaterial absorber based structure, which consists of variable sized ring resonators is designed, produced, simulated and experimentally tested for * Mehmet BAKIR, mehmet.bakir@bozok.edu.tr, https://orcid.org/0000-0002-5847-743X

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Cited by 2 publications

References 23 publications

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Metamaterial based Flexible Coplanar Antenna Design and Simulation for Human Body Applications

Tetik

2020

Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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This study presents a metamaterial based flexible coplanar antenna designed to operate close to the human model in the 2.45 GHz operation frequency band. Firstly, the reflection values and radiation pattern of the suggested antenna were analyzed. After obtaining good results, electromagnetic band gap (EBG) structure that is a kind of metamaterials was designed. Secondly, the EBG and the antenna was combined to form an integrated structure. At the same time, a human model was designed for the integrated structure. Conductive textile fabrics such as pure copper polyester taffeta fabric and felt were used for coplanar antenna and EBG design, respectively. Finally, the specific absorption rate (SAR) values of the coplanar wearable antenna and the integrated model were separately computed. As a result, the proposed EBG structure effectively reduced the SAR value of the integrated model. It was seen that the SAR value of integrated model was suitable with the standard threshold. The originality of the work lies in the use of wearable textile materials and making calculation by applying bend to the proposed structure. In addition, the sharp drop in SAR value from 31.8 to 0.0344 W/kg is remarkable when compared to many studies in the literature. The proposed integrated design has potentials to be applied to many research areas such as the military systems, health applications, and e-textile technologies.

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Metamaterial based Flexible Coplanar Antenna Design and Simulation for Human Body Applications

Tetik

2020

Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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Detection of Toxic Gases Using Flexible Metamaterial Absorber at Terahertz Frequencies

ALTINTAŞ,

TETİK

2023

Osmaniye Korkut Ata Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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The development of technology implies the release of several gases to the environment. These gases, especially toxic ones, have many negative effects on human life and cause many diseases that will adversely affect human health. In this respect, effective and accurate identification of these gases are important in terms of preventing possible damages. In this study, a sensor design that can detect toxic gases using a metamaterial structure operating in the gigahertz frequency range is presented. Metamaterials not found in nature are defined as artificial or synthetic structures and can be used in many applications, including sensors, thanks to their negative index of refraction. Here a metamaterial-based sensor application for the detection of the carbon monoxide, a toxic gas, is investigated. The sensor performance was analyzed by adding 50% and 100% toxic gas to the suggested metamaterial design, and 0.010 and 0.013 THz shifts were obtained in the resonance frequency, respectively. This shift indicates that this structure is a viable candidate in sensor applications for the carbon monoxide.

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Metamalzeme tabanlı çok bantlı enerji hasadı uygulaması

Cited by 2 publications

References 23 publications

Metamaterial based Flexible Coplanar Antenna Design and Simulation for Human Body Applications

Metamaterial based Flexible Coplanar Antenna Design and Simulation for Human Body Applications

Detection of Toxic Gases Using Flexible Metamaterial Absorber at Terahertz Frequencies

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