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2008 International Workshop on Metamaterials最新文献

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A new type of band-pass FSS based on metamaterial structures 一种基于超材料结构的新型带通FSS
2008 International Workshop on Metamaterials Pub Date : 2008-12-22 DOI: 10.1109/META.2008.4723593
Q. Sun, Q. Cheng, H. Xu, B. Zhou, T. Cui
{"title":"A new type of band-pass FSS based on metamaterial structures","authors":"Q. Sun, Q. Cheng, H. Xu, B. Zhou, T. Cui","doi":"10.1109/META.2008.4723593","DOIUrl":"https://doi.org/10.1109/META.2008.4723593","url":null,"abstract":"In this paper, a new type of band-pass frequency-selective surface(FSS) element using complementary electric-field-coupled (ELC) structure is proposed and simulated. It has an isotropic response to electric field. When the FSS encounters lager variation of incident angles(0deg to 45deg), the response does not change significantly with these incident angles. It is previously demonstrated that our FSS is less sensitive to incident angles than many other differently-shaped elements, such as crossed dipoles, tripoles, etc.","PeriodicalId":345360,"journal":{"name":"2008 International Workshop on Metamaterials","volume":"3 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132732546","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: 9
Electric and magnetic resonances in broadside coupled split ring resonators: An extended mode-expansion theory 宽边耦合劈裂环谐振器中的电与磁共振:一种扩展模式展开理论
2008 International Workshop on Metamaterials Pub Date : 2008-12-22 DOI: 10.1109/META.2008.4723546
Xueqin Huang, Yi Zhang, S. Chui, L. Zhou
{"title":"Electric and magnetic resonances in broadside coupled split ring resonators: An extended mode-expansion theory","authors":"Xueqin Huang, Yi Zhang, S. Chui, L. Zhou","doi":"10.1109/META.2008.4723546","DOIUrl":"https://doi.org/10.1109/META.2008.4723546","url":null,"abstract":"We extend the previously established mode-expansion theory to study the eigenmodes of metallic ring systems made by thin wires possessing film-like rectangular cross sections. Applications of the theory to a single split ring resonator (SRR) yield essentially the same results with finite-difference-time-domain (FDTD) simulations on realistic structures, which justify some basic assumptions adopted in the theory. We then apply the theory to study the resonance properties of a double-stack SRR, and show that such a planar resonator exhibits magnetic responses along all three dimensions under different conditions. FDTD simulations on realistic structures are performed to successfully verify the predictions based on the extended mode-expansion theory, and reveal that mutual-SRR interactions in a periodic SRR array may lead to a significant change of the eigenmode properties, including a reversal of the frequency sequence for two resonance modes.","PeriodicalId":345360,"journal":{"name":"2008 International Workshop on Metamaterials","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122225469","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: 2
A low profile dual-band inverted L antenna with slotted electromagnetic band-gap (EBG) structures 采用开槽电磁带隙(EBG)结构的低轮廓双频倒L型天线
2008 International Workshop on Metamaterials Pub Date : 2008-12-22 DOI: 10.1109/META.2008.4723609
X. Chen, C. Liang, L. Liang, Z. Su
{"title":"A low profile dual-band inverted L antenna with slotted electromagnetic band-gap (EBG) structures","authors":"X. Chen, C. Liang, L. Liang, Z. Su","doi":"10.1109/META.2008.4723609","DOIUrl":"https://doi.org/10.1109/META.2008.4723609","url":null,"abstract":"The reflection phase feature of an EBG structure which has two different in-phase reflection phase features is studied in this paper. This EBG structure is applied as high impedance ground plane (HIP) to a low profile inverted L antenna. The simulation results show that due to the EBG structure, the inverted L antenna can operate at dual-frequency bands and have the characteristic of low profile.","PeriodicalId":345360,"journal":{"name":"2008 International Workshop on Metamaterials","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121248958","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: 2
Progress of metamaterials at microwave frequencies 微波频率下超材料研究进展
2008 International Workshop on Metamaterials Pub Date : 2008-12-22 DOI: 10.1109/META.2008.4723528
Ruopeng Liu, C. Ji, T. Cui, D.R. Smith
{"title":"Progress of metamaterials at microwave frequencies","authors":"Ruopeng Liu, C. Ji, T. Cui, D.R. Smith","doi":"10.1109/META.2008.4723528","DOIUrl":"https://doi.org/10.1109/META.2008.4723528","url":null,"abstract":"Metamaterials have been rapidly explored for a few years and attracted tremendous attentions. This paper discussed the latest progress in metamaterials at microwave frequencies. The ability of designing and building the complex medium has been dramatically enlarged via the development of various types of metamaterial configuration, rapid design system and sophisticated fabrication technique.","PeriodicalId":345360,"journal":{"name":"2008 International Workshop on Metamaterials","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116622970","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: 2
Magnetic resonant cavity composing of a three layered plasmonic nanostructure 由三层等离子体纳米结构组成的磁谐振腔
2008 International Workshop on Metamaterials Pub Date : 2008-12-22 DOI: 10.1109/META.2008.4723577
Jianjun Chen, Z. Fan, Fuhua Yang
{"title":"Magnetic resonant cavity composing of a three layered plasmonic nanostructure","authors":"Jianjun Chen, Z. Fan, Fuhua Yang","doi":"10.1109/META.2008.4723577","DOIUrl":"https://doi.org/10.1109/META.2008.4723577","url":null,"abstract":"The magnetic-type plasmon resonant of a metal-dielectric-metal nanocavity working at the wavelength of 1.55 mum is explored, in which the upper layer is periodically patterned with metallic nanostrip arrays. In the dielectric film layer, the magnetic energy intensity is enhanced about 1700 times when irradiated with a p-polarized plane wave. We numerically studied the dispersion of the modes and the Q-value of this periodic cavity arrays. Q value is estimated about 18 and still has room for further improvement. It provides a new type of nanocavity that exhibits a strong magnetic response.","PeriodicalId":345360,"journal":{"name":"2008 International Workshop on Metamaterials","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116245373","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: 0
Design of transparent cloaks with optical transformation 具有光学变换的透明斗篷设计
2008 International Workshop on Metamaterials Pub Date : 2008-12-22 DOI: 10.1109/META.2008.4723556
Z. Mei, T. Cui
{"title":"Design of transparent cloaks with optical transformation","authors":"Z. Mei, T. Cui","doi":"10.1109/META.2008.4723556","DOIUrl":"https://doi.org/10.1109/META.2008.4723556","url":null,"abstract":"Novel transparent cloaks, i.e. metamaterial-based structures invisible to electromagnetic fields, are proposed, designed and analyzed using the optical transformation. Unlike the widely-studied traditional invisible cloaks, these structures physically cover and shield the devices inside without sacrifice of their electrical performance inside and outside the structures since they are transparent to incoming electromagnetic waves. These transparent cloaks have wide applications in civil and military sectors.","PeriodicalId":345360,"journal":{"name":"2008 International Workshop on Metamaterials","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121421648","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: 6
Time-domain research for the normal dispersion in the second photonic crystal passband 第二光子晶体通带法向色散的时域研究
2008 International Workshop on Metamaterials Pub Date : 2008-12-22 DOI: 10.1109/META.2008.4723584
Ziying Li, Yewen Zhang, Li He
{"title":"Time-domain research for the normal dispersion in the second photonic crystal passband","authors":"Ziying Li, Yewen Zhang, Li He","doi":"10.1109/META.2008.4723584","DOIUrl":"https://doi.org/10.1109/META.2008.4723584","url":null,"abstract":"Photonic crystal (PC) has aroused the attention of people as a new type of material that can be used to control electromagnetic waves. However, there are some uncertainties about the dispersion of photonic crystal passbands. The experiments of both the time-domain and frequency-domain are studied to demonstrate the normal dispersion in the second photonic crystal passband. Within the frequency region of first and second passbands, the position and time behavior of a Gaussian modulated waveform with frequency from 0.5 GHz to 3.2 GHz is investigated and it shows that the phase velocity and group velocity are parallel along the photonic crystal transmission line (PC TL) . A couple structure composed of one-dimension photonic crystal and meta-materials realized by composite right-/left-handed transmission line (CRLH TL) is also studied, and it demonstrates the normal dispersion in the second photonic crystal passband. The experimental results of both the time-domain and frequency-domain method agree extremely well with the simulations.","PeriodicalId":345360,"journal":{"name":"2008 International Workshop on Metamaterials","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127113445","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: 0
Effective 1-D material properties of coplanar-waveguide-based EBG- and meta-materials 基于共面波导的EBG和超材料的有效一维材料特性
2008 International Workshop on Metamaterials Pub Date : 2008-12-22 DOI: 10.1109/META.2008.4723518
Lei Zhu
{"title":"Effective 1-D material properties of coplanar-waveguide-based EBG- and meta-materials","authors":"Lei Zhu","doi":"10.1109/META.2008.4723518","DOIUrl":"https://doi.org/10.1109/META.2008.4723518","url":null,"abstract":"This paper aims to give unified characterization of coplanar-waveguide-based 1D electromagnetic-bandgap (EBG) and metamaterial in terms of two fundamental per-unit-length (PUL) transmission parameters, i.e., characteristic impedance and propagation constant. In analysis, a full-wave self-calibrated method of moments (MoM) is applied to de-embedding these two PUL parameters from simulation of two-port finite-extent CPW sections. Firstly, 1-D CPW-based EBG material with periodical loading of series-inductive units is studied to provide a physical insight into slow-wave and bandstop behaviors of guided-wave. Then, CPW metamaterials with simultaneous series-capacitive and shunt-inductive loading are investigated to demonstrate the guided-wave performances in the distinctive left- (LH) and right-handed (RH) passbands. It is demonstrated that the stopband or bandgap between the LH and RH passbands can be wholly eliminated by properly selecting distributed CPW elements. A few CPW circuits based on these 1-D EBG and metamaterials are in final fabricated to confirm the theoretical predictions.","PeriodicalId":345360,"journal":{"name":"2008 International Workshop on Metamaterials","volume":"35 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127185207","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: 5
Plasmonics metamaterials of high refractive index at visible frequency 在可见频率具有高折射率的等离子体超材料
2008 International Workshop on Metamaterials Pub Date : 2008-12-22 DOI: 10.1109/META.2008.4723561
Haofei Shi, Lifang Shi, Changtao Wang, Xingzhan Wei, C. Du
{"title":"Plasmonics metamaterials of high refractive index at visible frequency","authors":"Haofei Shi, Lifang Shi, Changtao Wang, Xingzhan Wei, C. Du","doi":"10.1109/META.2008.4723561","DOIUrl":"https://doi.org/10.1109/META.2008.4723561","url":null,"abstract":"We proposed that the interaction between the surface plasmon modes would create the high index of refractive in the subwavelength metallic channel at optical frequency. The analytically discussion of the dependence of the refractive index value on the unit cell geometry and the metal dielectric function were performed. It is interesting that the proposed high refractive index metamaterials can be realized without any electric or magnetic resonance along the geometry and thus has the promising potential in reducing the material loss. In addition, a kind of spatially non-uniform high refractive index plasmonics metamaterials was introduced to manipulating light in subwavelength scale, and a focusing nano-optics element design process was illustrate to verified the potential application of non-uniform plasmonics metamaterials at optical frequency.","PeriodicalId":345360,"journal":{"name":"2008 International Workshop on Metamaterials","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117023632","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: 1
Highly directive antenna based on one-dimensional anisotropic metamaterials 基于一维各向异性超材料的高定向天线
2008 International Workshop on Metamaterials Pub Date : 2008-12-22 DOI: 10.1109/META.2008.4723603
T. Jiang, Yongzhi Sun, Ting Li, Wei-guang Wang, Weiqiang Zhu, L. Peng, L. Ran, J. Huangfu
{"title":"Highly directive antenna based on one-dimensional anisotropic metamaterials","authors":"T. Jiang, Yongzhi Sun, Ting Li, Wei-guang Wang, Weiqiang Zhu, L. Peng, L. Ran, J. Huangfu","doi":"10.1109/META.2008.4723603","DOIUrl":"https://doi.org/10.1109/META.2008.4723603","url":null,"abstract":"In this paper, we achieve highly directive emission based on left-handed metamaterial. By employing the anisotropic characteristics, the electromagnetic (EM) wave propagates along only one direction inside the medium and has a quasi-plane phase front; the electromagnetic (EM) waves emitted from the medium would behave high directional. This property is verified by both the numerical simulation and the experimental measurement.","PeriodicalId":345360,"journal":{"name":"2008 International Workshop on Metamaterials","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134035250","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: 0
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