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Metamaterial Grounded Planar Bilayers Supporting Leaky W aves: Principles and Applications 支撑漏W波的超材料接地平面双层:原理与应用
2005 18th International Conference on Applied Electromagnetics and Communications Pub Date : 2006-12-06 DOI: 10.1109/ICECOM.2005.204983
A. Alú, F. Bilotti, N. Engheta, L. Vegni
{"title":"Metamaterial Grounded Planar Bilayers Supporting Leaky W aves: Principles and Applications","authors":"A. Alú, F. Bilotti, N. Engheta, L. Vegni","doi":"10.1109/ICECOM.2005.204983","DOIUrl":"https://doi.org/10.1109/ICECOM.2005.204983","url":null,"abstract":"In this contribution, we review the analysis of metamaterial grounded planar bilayers supporting leaky-waves, which we have recently proposed elsewhere as compact sub-wavelength leaky-wave radiators, and for enhancing the wave transmission through apertures over conducting screens when used as covers. Exploiting the peculiar resonances arising when \"complementary\" or \"conjugate\" metamaterials are paired, together with the focusing properties of low-permittivity and/or low-permeability materials, it is possible to operate a sub-wavelength open waveguide consisting of a stack of grounded metamaterial bilayers in the leaky-wave regime. We recall the salient guidance and radiation properties of these anomalous natural modes, providing some physical insights into the phenomenon and speculating on the connections between these two potential applications","PeriodicalId":102260,"journal":{"name":"2005 18th International Conference on Applied Electromagnetics and Communications","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125115059","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
Estimation of Channel Parameters for " Saleh-Valenzuela" Model Simulation “Saleh-Valenzuela”模式模拟中信道参数的估计
2005 18th International Conference on Applied Electromagnetics and Communications Pub Date : 2005-10-17 DOI: 10.1109/ICECOM.2005.204926
I. Marinovic, I. Zanchi, Z. Blažević
{"title":"Estimation of Channel Parameters for \" Saleh-Valenzuela\" Model Simulation","authors":"I. Marinovic, I. Zanchi, Z. Blažević","doi":"10.1109/ICECOM.2005.204926","DOIUrl":"https://doi.org/10.1109/ICECOM.2005.204926","url":null,"abstract":"The paper presents application of channel simulation according to statistical Saleh-Valenzuela model for a typical university building architecture. Estimation of parameters is based on analyze of measured power delay profiles, obtained in measuring campaign inside the same building. The vector network analyzer method of measuring was applied, inside 1600 - 2000 MHz frequency band. All measurements were done on single-floor. The first assessment of cluster arrival rate, ray arrival rate, cluster decaying factor and ray decaying factor was gained from spatial-averaged measured power delay profiles. The simulated cumulative distribution function of effective time delay was compared with measured one in order to optimize mentioned channel parameters. The final result is a great deal of agreement between the simulated and measured CDFs","PeriodicalId":102260,"journal":{"name":"2005 18th International Conference on Applied Electromagnetics and Communications","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131721512","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
Assessment of Experimental Errors in Time-Integrated Plasma Spectroscopy 时间积分等离子体光谱的实验误差评估
2005 18th International Conference on Applied Electromagnetics and Communications Pub Date : 2005-10-14 DOI: 10.1109/ICECOM.2005.204961
S. Pleslić, Ž. Andreić
{"title":"Assessment of Experimental Errors in Time-Integrated Plasma Spectroscopy","authors":"S. Pleslić, Ž. Andreić","doi":"10.1109/ICECOM.2005.204961","DOIUrl":"https://doi.org/10.1109/ICECOM.2005.204961","url":null,"abstract":"Application of laser beam as a light source is important in light-wave technology. Also, interaction of laser radiation with target gives valuable information about material properties. Estimation of experimental errors in plasma spectroscopy is necessary because measurements of relative and absolute intensities are always accompanied by many difficulties and sources of possible errors. Wavelength calibration and relative spectral sensitivity calibration were performed, same as instrumental profile was determined. In wavelength calibration, by using the projection densitometer and an iron spark spectrum recorded above or below the plasma spectrum on the same film, an accuracy better than 0.01 nm can be achieved what is very good in comparison with spectral line FWHM (~ 1 nm). Calibrated tungsten filament lamp was used as spectral radiance standard with errors less than 3%. The instrumental FWHM was determined at several wavelengths in the spectral range covered and for other wavelengths it was obtained by interpolation. By comparing this instrumental profile with the real FWHM of spectral lines observed in plasma, it was obvious that the instrumental profile can be neglected for wavelengths under about 400 nm","PeriodicalId":102260,"journal":{"name":"2005 18th International Conference on Applied Electromagnetics and Communications","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121248495","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
Measured Polarization Response of Negative Index Metamaterial 负折射率超材料的极化响应测量
2005 18th International Conference on Applied Electromagnetics and Communications Pub Date : 2005-10-12 DOI: 10.1109/ICECOM.2005.204980
J. Derov, B. Turchinetz, E. Crisman, A. Drehman, S. Best
{"title":"Measured Polarization Response of Negative Index Metamaterial","authors":"J. Derov, B. Turchinetz, E. Crisman, A. Drehman, S. Best","doi":"10.1109/ICECOM.2005.204980","DOIUrl":"https://doi.org/10.1109/ICECOM.2005.204980","url":null,"abstract":"Free space microwave measurements are reported of a split ring and post type metamaterial that exhibits negative index of refraction in a frequency band near 13.5 GHz. Varying azimuthal angles and magnitudes are achieved by changing the polarization of the transmitter and receiver relative to each other and to the anisotropic material. The amplitude of the cross-polarized transmission has been measured at 50% of the co-polarization level. This polarization conversion is a significant loss mechanism","PeriodicalId":102260,"journal":{"name":"2005 18th International Conference on Applied Electromagnetics and Communications","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124835591","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: 3
Comparison of directlional and omnl-directlonal UWB antennas for Wireless Body Area Network applications 无线体域网络中定向与全向超宽带天线的比较
2005 18th International Conference on Applied Electromagnetics and Communications Pub Date : 2005-10-01 DOI: 10.1109/ICECOM.2005.205038
Maciej Klemm, Istvan Z. Kovacs, G. F. Pedersen, Gerhard Tröster
{"title":"Comparison of directlional and omnl-directlonal UWB antennas for Wireless Body Area Network applications","authors":"Maciej Klemm, Istvan Z. Kovacs, G. F. Pedersen, Gerhard Tröster","doi":"10.1109/ICECOM.2005.205038","DOIUrl":"https://doi.org/10.1109/ICECOM.2005.205038","url":null,"abstract":"In this paper we present a low-profile directional UWB antenna with improved radiation efficiency when operating in close vicinity to a biological tissue. This antenna is intended for the use in UWB wireless body area network (WBAN) applications, between 3 and 6 GHz. A novel design is based on a UWB slot antenna structure with an added radiator/reflector element in order to achieve directional radiation pattern. We compare results of our novel design, to those of the omni-directional UWB monopole antenna (currently the most commonly used in UWB studies). Measurement and simulation results show that the developed directional UWB slot antenna has the improved radiation efficiency in the vicinity of human body. Moreover, proximity of the human body much less influences its transfer functions (the most important antenna parameter in UWB radio), compared to the omni-directional UWB monopole antenna","PeriodicalId":102260,"journal":{"name":"2005 18th International Conference on Applied Electromagnetics and Communications","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133496095","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: 13
ACE Small Terminal Antennas Activities: a Review of the State of the Art ACE小型终端天线活动:技术现状综述
2005 18th International Conference on Applied Electromagnetics and Communications Pub Date : 2005-07-03 DOI: 10.1109/APS.2005.1552591
M. Martínez-Vázquez
{"title":"ACE Small Terminal Antennas Activities: a Review of the State of the Art","authors":"M. Martínez-Vázquez","doi":"10.1109/APS.2005.1552591","DOIUrl":"https://doi.org/10.1109/APS.2005.1552591","url":null,"abstract":"This paper presents the work carried out in the ACE Network of Excellence regarding technologies for small terminal antennas. The aim is to review the state of the art in this field, and identify the newest trends in antenna design for personal communications devices","PeriodicalId":102260,"journal":{"name":"2005 18th International Conference on Applied Electromagnetics and Communications","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133634539","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
THz-wave parametric sources and imaging applications 太赫兹波参数源和成像应用
2005 18th International Conference on Applied Electromagnetics and Communications Pub Date : 2004-12-23 DOI: 10.1117/12.578434
K. Kawase, M. Yamashita, Y. Ogawa, C. Otani
{"title":"THz-wave parametric sources and imaging applications","authors":"K. Kawase, M. Yamashita, Y. Ogawa, C. Otani","doi":"10.1117/12.578434","DOIUrl":"https://doi.org/10.1117/12.578434","url":null,"abstract":"We are studying several novel steps toward real-life applications of terahertz waves, such as, i) palmtop terahertz-wave parametric generators, ii) printable terahertz sensors using metal mesh, iii) noninvasive detection of concealed drugs using terahertz wave scattering, iv) observation of MOSFET chips using an infrared laser THz emission microscope, v) monolithic Fabry-Perot resonator for the measurement of optical constants in the terahertz range. In this paper, we introduce some of our recent activities","PeriodicalId":102260,"journal":{"name":"2005 18th International Conference on Applied Electromagnetics and Communications","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114287834","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
Optimization of a lens-patch antenna for radar sensor applications 用于雷达传感器的透镜贴片天线的优化
2005 18th International Conference on Applied Electromagnetics and Communications Pub Date : 1900-01-01 DOI: 10.1109/ICECOM.2005.205034
G. Colome, G. Dassano, M. Orefice
{"title":"Optimization of a lens-patch antenna for radar sensor applications","authors":"G. Colome, G. Dassano, M. Orefice","doi":"10.1109/ICECOM.2005.205034","DOIUrl":"https://doi.org/10.1109/ICECOM.2005.205034","url":null,"abstract":"In this paper we propose a dielectric lens antenna configuration for radar sensor applications in order to overcome the difficulties related to interconnection and feeder losses of antenna array needed to increase the directivity of radar system. Here the directivity is increased by a single curvature dielectric lens collimating the radiation from a single patch. The resulting radiation and matching properties are compared with a patch array, showing better efficiency and bandwidth","PeriodicalId":102260,"journal":{"name":"2005 18th International Conference on Applied Electromagnetics and Communications","volume":"37 15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116788445","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: 7
A Novel Multiband Antenna: Fractal Antenna 一种新型多波段天线:分形天线
2005 18th International Conference on Applied Electromagnetics and Communications Pub Date : 1900-01-01 DOI: 10.1109/ICECOM.2005.205012
Renu Bansal, P. K. Singhal, P. C. Sharma
{"title":"A Novel Multiband Antenna: Fractal Antenna","authors":"Renu Bansal, P. K. Singhal, P. C. Sharma","doi":"10.1109/ICECOM.2005.205012","DOIUrl":"https://doi.org/10.1109/ICECOM.2005.205012","url":null,"abstract":"This paper outlines a multiband antenna design based on fractal concepts. Simulation studies to investigate the influence of fractals on resonant frequencies are presented. The numbers of fractals are varied and influence on frequency bands is observed","PeriodicalId":102260,"journal":{"name":"2005 18th International Conference on Applied Electromagnetics and Communications","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117170423","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: 10
Scalling of the exclusion/extraction InSb MOSFETs 调用mosfet的排除/提取
2005 18th International Conference on Applied Electromagnetics and Communications Pub Date : 1900-01-01 DOI: 10.1109/ICECOM.2005.205048
E. Sijercic, B. Pejcinovic
{"title":"Scalling of the exclusion/extraction InSb MOSFETs","authors":"E. Sijercic, B. Pejcinovic","doi":"10.1109/ICECOM.2005.205048","DOIUrl":"https://doi.org/10.1109/ICECOM.2005.205048","url":null,"abstract":"A methodology for simulation of InSb MOSFETs in standard drift-diffusion simulators is presented. Due to its low bandgap and high mobility, InSb shows promise as a material for THz active devices operating at very low voltages. Non-parabolicity, degeneracy, mobility and Auger recombination/generation are explained and modeled. Leakage current, transconductance and maximum unity current gain frequency of the exclusion/extraction MOSFET are examined and its scaling properties down to 0.15 mum are analyzed","PeriodicalId":102260,"journal":{"name":"2005 18th International Conference on Applied Electromagnetics and Communications","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123255408","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
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