Metamaterials最新文献_第9页

A novel compact volumetric metamaterial structure with asymmetric transmission and polarization conversion 一种具有非对称传输和极化转换的新型致密体积超材料结构

Metamaterials Pub Date : 2010-05-01 DOI: 10.1016/J.METMAT.2010.04.003

N. R. Labadie, S. Sharma

引用次数: 8

Flexible magnetoinductive ring MRI detector: Design for invariant nearest-neighbour coupling 柔性磁感应环MRI探测器:不变最近邻耦合设计

Metamaterials Pub Date : 2010-05-01 DOI: 10.1016/J.METMAT.2009.12.001

R. Syms, T. Floume, I. Young, L. Solymar, M. Rea

引用次数: 32

Characteristic properties of electromagnetic wave interaction with uniaxial absorbing metamaterials: A case of the near-zero axial parameter 电磁波与单轴吸收超材料相互作用的特性:轴向参数接近零的一个例子

Metamaterials Pub Date : 2010-05-01 DOI: 10.1016/J.METMAT.2010.03.003

E. Starodubtsev

引用次数: 6

Metamaterials and the homogenization of composite materials 超材料与复合材料的均质化

Metamaterials Pub Date : 2010-05-01 DOI: 10.1016/j.metmat.2010.02.003

W.T. Perrins, R.C. McPhedran

引用次数: 21

Nano-scaled onion-like carbon: Prospective material for microwave coatings 纳米级洋葱状碳:微波涂层的前景材料

Metamaterials Pub Date : 2009-11-01 DOI: 10.1016/j.metmat.2009.07.002

P. Kuzhir , S. Maksimenko , D. Bychanok , V. Kuznetsov , S. Moseenkov , I. Mazov , O. Shenderova , Ph. Lambin

{"title":"Nano-scaled onion-like carbon: Prospective material for microwave coatings","authors":"P. Kuzhir , S. Maksimenko , D. Bychanok , V. Kuznetsov , S. Moseenkov , I. Mazov , O. Shenderova , Ph. Lambin","doi":"10.1016/j.metmat.2009.07.002","DOIUrl":"10.1016/j.metmat.2009.07.002","url":null,"abstract":"<div><p><span>Microwave absorption properties of a novel electromagnetic material – onion-like carbon (OLC) produced by annealing of detonation nanodiamonds in vacuum – have been studied in microwave frequency range. The OLC electromagnetic (EM) absorption ability can be optimized by varying the nanocarbon cluster size and nanodiamond annealing temperature so that effective EM coatings can be produced. Attenuation of EM waves in the 26–38</span> <span><span>GHz frequency range had been studies for both OLC powder and polymer composites. For powder samples it was concluded that OLC aggregates with higher conductivity (higher annealing temperature of the precursor nanodiamond particles) and larger aggregate sizes provide higher efficiency for attenuation of the EM radiation. At the same time, when dispersed in a </span>polymer matrix<span>, more efficient shielding properties had been observed for OLC aggregates of the smallest sizes as compared to larger-sized aggregates at the same OLC loading. This is attributed due to the better dispersion and formation of a continuous conductive network by smaller aggregates (reaching the percolation threshold).</span></span></p></div>","PeriodicalId":100920,"journal":{"name":"Metamaterials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.metmat.2009.07.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89931786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 30

3D isotropic metamaterial based on a regular array of resonant dielectric spherical inclusions 基于共振介质球形内含物规则阵列的三维各向同性超材料

Metamaterials Pub Date : 2009-11-01 DOI: 10.1016/j.metmat.2009.09.001

I.B. Vendik, M.A. Odit, D.S. Kozlov

{"title":"3D isotropic metamaterial based on a regular array of resonant dielectric spherical inclusions","authors":"I.B. Vendik, M.A. Odit, D.S. Kozlov","doi":"10.1016/j.metmat.2009.09.001","DOIUrl":"10.1016/j.metmat.2009.09.001","url":null,"abstract":"<div><p><span>The 3D regular lattice of bi-spherical dielectric<span> resonant inclusions arranged in a cubic lattice as two sets of dielectric spheres having different radii and embedded in a host dielectric material with lower dielectric permittivity was carefully investigated. The </span></span>magnetic resonance<span> mode in smaller spheres gives rise to the magnetic dipole momentum and the electric resonance mode in bigger spheres is responsible for the electric dipole momentum. The magnetic resonance corresponding to the first Mie resonance in the spherical particles is followed by forming a regular array of effective magnetic dipoles, and the structure of the identical spherical dielectric resonators can be designed as an isotropic μ-negative 3D-metamaterial. At the same time, it was found experimentally and by the simulation that the resonant response of the electric dipole was weakly pronounced and the ɛ-negative behavior was remarkably suppressed. To enhance the electric dipole contribution, two different ways were considered: (i) using another kind of symmetry of the bi-spherical arrangement of the particles corresponding to the body-centered cubic symmetry instead of the symmetry of NaCl analog considered previously; (ii) using a strong coupling between the identical resonant dielectric spheres arranged in the simple cubic symmetry for creation of the structure exhibiting properties of the isotropic DNG medium.</span></p></div>","PeriodicalId":100920,"journal":{"name":"Metamaterials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.metmat.2009.09.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78413725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 27

Nonlocal homogenization of an array of cubic particles made of resonant rings 由共振环组成的立方粒子阵列的非局部均匀化

Metamaterials Pub Date : 2009-11-01 DOI: 10.1016/j.metmat.2009.08.004

M.G. Silveirinha , J.D. Baena , L. Jelinek , R. Marqués

引用次数: 22

Nanolithography based on an atom pinhole camera for fabrication of metamaterials 基于原子针孔相机的纳米光刻技术在超材料制造中的应用

Metamaterials Pub Date : 2009-11-01 DOI: 10.1016/j.metmat.2009.08.003

P.N. Melentiev , A.V. Zablotskiy , A.A. Kuzin , D.A. Lapshin , A.S. Baturin , V.I. Balykin

引用次数: 4

Initial assessment of a waveguide with dielectric-filled corrugations as a technology for slot antennas with backward-to-forward scanning capabilities 具有后向扫描能力的缝隙天线用介质填充波波导技术的初步评估

Metamaterials Pub Date : 2009-11-01 DOI: 10.1016/j.metmat.2009.07.004

M. Navarro-Tapia , J. Esteban , C. Camacho-Peñalosa

{"title":"Initial assessment of a waveguide with dielectric-filled corrugations as a technology for slot antennas with backward-to-forward scanning capabilities","authors":"M. Navarro-Tapia , J. Esteban , C. Camacho-Peñalosa","doi":"10.1016/j.metmat.2009.07.004","DOIUrl":"10.1016/j.metmat.2009.07.004","url":null,"abstract":"<div><p><span><span>The frequency-scanning capabilities of continuous-type leaky-wave antennas have usually been restricted to main-beam pointing angles within the forward quadrant. With the appearance of metamaterial concepts, </span>wave propagation with negative and zero phase constant has made it possible to spread the scanning directions, allowing main-beam angles into the backward quadrant, as well as the broadside direction. In this paper, a straight long slot antenna, implemented in a rectangular </span>waveguide with dielectric-filled corrugations, is analyzed, constructed and measured, and an analysis method, based on an equivalent homogeneized waveguide, is proposed. Some features of the antenna, such as losses, radiation pattern and gain are studied, in order to assess the performance and suitability of the composite right/left-handed waveguide technology used. The obtained results highlight the limiting factors for the applicability of the corrugated waveguide in antenna applications, while confirm the validity of the analysis technique proposed.</p></div>","PeriodicalId":100920,"journal":{"name":"Metamaterials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.metmat.2009.07.004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84913116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Plastic-based microfabrication of artificial dielectric for miniaturized microwave integrated circuits 微型化微波集成电路人造电介质的塑料微加工

Metamaterials Pub Date : 2009-11-01 DOI: 10.1016/j.metmat.2009.09.002

David Dubuc , Katia Grenier , Hiroyuki Fujita , Hiroshi Toshiyoshi

引用次数: 5