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2011 XXXth URSI General Assembly and Scientific Symposium最新文献

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Field displacement in a traveling-wave ring resonator meta-structure 行波环形谐振器元结构中的场位移
2011 XXXth URSI General Assembly and Scientific Symposium Pub Date : 2011-10-20 DOI: 10.1109/URSIGASS.2011.6050391
T. Kodera, D. Sounas, Hoang van Nguyen, H. Razavipour, C. Caloz
{"title":"Field displacement in a traveling-wave ring resonator meta-structure","authors":"T. Kodera, D. Sounas, Hoang van Nguyen, H. Razavipour, C. Caloz","doi":"10.1109/URSIGASS.2011.6050391","DOIUrl":"https://doi.org/10.1109/URSIGASS.2011.6050391","url":null,"abstract":"Field displacement is demonstrated for the first-time in a non-molecular-scale structure, namely a meta-structure composed of rings equipped with an isolator. The structure is explained in terms of rotating magnetic dipole moments and demonstrated to produce typical gyrotropic field displacement.","PeriodicalId":325870,"journal":{"name":"2011 XXXth URSI General Assembly and Scientific Symposium","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128312955","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
From electronics to metatronics to graphene metamaterials 从电子学到电子学再到石墨烯超材料
2011 XXXth URSI General Assembly and Scientific Symposium Pub Date : 2011-10-20 DOI: 10.1109/URSIGASS.2011.6050383
N. Engheta
{"title":"From electronics to metatronics to graphene metamaterials","authors":"N. Engheta","doi":"10.1109/URSIGASS.2011.6050383","DOIUrl":"https://doi.org/10.1109/URSIGASS.2011.6050383","url":null,"abstract":"We discuss the concept of optical metatronics, i.e., metamaterial-inspired optical nanocircuitry, in which the metamaterials and plasmonic optics can bring together three fields of “electronics”, “photonics” and “magnetics” seamlessly under one umbrella — a paradigm which I call the “Unified Paradigm of Metatronics”. We present an over view of our most recent analytical, numerical and experimental results in developing the optical metatronics. We also show how this concept can be merged into the platform of graphene, which is one-atom-thick carbon layers, leading to the possibility of one-atom-thick infra-red metamaterials and transformation optics. Future directions in these topics will also be forecasted.","PeriodicalId":325870,"journal":{"name":"2011 XXXth URSI General Assembly and Scientific Symposium","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128400116","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
The new meteor radar at Penn State 宾州州立大学的新流星雷达
2011 XXXth URSI General Assembly and Scientific Symposium Pub Date : 2011-10-20 DOI: 10.1109/URSIGASS.2011.6051021
J. Urbina, R. Seal, L. Dyrud
{"title":"The new meteor radar at Penn State","authors":"J. Urbina, R. Seal, L. Dyrud","doi":"10.1109/URSIGASS.2011.6051021","DOIUrl":"https://doi.org/10.1109/URSIGASS.2011.6051021","url":null,"abstract":"In order to provide new and improved meteor radar sensing capabilities, Penn State has been developing advanced instruments and technologies for future meteor radars, with primary objectives of making such instruments more capable and cost effective to study basic properties of the global meteor flux, such as average mass, velocity, and chemical composition. Using low-cost field programmable gate arrays (FPGAs) and open source software tools, we describe a state-of-the art radar system that is both cost-effective and efficient, optimized to collect and display instantaneous profiles of atmospheric parameters and climatology on a daily basis throughout the year. An overview of the system and some of the emerging technologies developed for this meteor radar are presented.","PeriodicalId":325870,"journal":{"name":"2011 XXXth URSI General Assembly and Scientific Symposium","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128774833","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
Square split ring resonator backed coplanar waveguide for filter applications 用于滤波应用的方形分环谐振腔背面共面波导
2011 XXXth URSI General Assembly and Scientific Symposium Pub Date : 2011-10-20 DOI: 10.1109/URSIGASS.2011.6050665
C. Saha, J. Siddiqui, Y. Antar
{"title":"Square split ring resonator backed coplanar waveguide for filter applications","authors":"C. Saha, J. Siddiqui, Y. Antar","doi":"10.1109/URSIGASS.2011.6050665","DOIUrl":"https://doi.org/10.1109/URSIGASS.2011.6050665","url":null,"abstract":"In this paper, we present a design of a coplanar waveguide loaded with square split ring resonators for filter applications. A theoretical formulation to estimate the resonant frequency of the square split ring resonator is also proposed. Experimental verification of the proposed theory is reported and the computed data are also compared with","PeriodicalId":325870,"journal":{"name":"2011 XXXth URSI General Assembly and Scientific Symposium","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128340481","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
Radio sounding from IMAGE: New perspectives on field aligned density irregularities, Z and whistler mode diagnostics, and proton cyclotron harmonic echoes 无线电探测图像:场对准密度不规则，Z和惠斯勒模式诊断和质子回旋加速器谐波回波的新视角
2011 XXXth URSI General Assembly and Scientific Symposium Pub Date : 2011-10-20 DOI: 10.1109/URSIGASS.2011.6051105
D. L. Carpenter, T. Bell, V. Sonwalkar
{"title":"Radio sounding from IMAGE: New perspectives on field aligned density irregularities, Z and whistler mode diagnostics, and proton cyclotron harmonic echoes","authors":"D. L. Carpenter, T. Bell, V. Sonwalkar","doi":"10.1109/URSIGASS.2011.6051105","DOIUrl":"https://doi.org/10.1109/URSIGASS.2011.6051105","url":null,"abstract":"The operating frequency of the Radio Plasma Imager (RPI) instrument on the IMAGE satellite extended from 3 kHz to 3 MHz. This wide range made possible free-space O and X mode sounding from altitudes on both sides of the plasmasphere boundary layer (PBL) while also making possible wave injection in the whistler-mode and Z-mode domains at altitudes less than ≈ 10,000 km. We briefly review new findings in four areas: (i) density irregularities in the PBL and within the plasmasphere; (ii) upward Z-mode probing along geomagnetic field lines from within a Z-mode propagation ‘cavity’ (iii) downward probing from 4500–7000 km altitude using whistler-mode waves that undergo two fundamentally different types of reflection; (iv) strong coupling of RPI pulses to the local proton plasma","PeriodicalId":325870,"journal":{"name":"2011 XXXth URSI General Assembly and Scientific Symposium","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128602151","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
Evidence of ion foreshock in 2-D PIC simulations of a curved collisionless shock: Statistical and individual trajectory approach 弯曲无碰撞冲击的二维PIC模拟中离子前冲击的证据:统计和个人轨迹方法
2011 XXXth URSI General Assembly and Scientific Symposium Pub Date : 2011-10-20 DOI: 10.1109/URSIGASS.2011.6051139
J. Stienlet, P. Savoini, B. Lembége
{"title":"Evidence of ion foreshock in 2-D PIC simulations of a curved collisionless shock: Statistical and individual trajectory approach","authors":"J. Stienlet, P. Savoini, B. Lembége","doi":"10.1109/URSIGASS.2011.6051139","DOIUrl":"https://doi.org/10.1109/URSIGASS.2011.6051139","url":null,"abstract":"2-D Full particle simulations are used to investigate the so-called foreshock region which is filled with energized backstreaming particles. Two populations are observed for 90° ≥ ΘBn ≥ 45°: (i) field-aligned ion beams collimated along the IMF and having a gyrotropic distribution and (ii) gyro-phase bunch ions having a global gyration around the magnetic field. Our analysis evidences that these two populations are reflected by the shock itself and can have different origins both in term of interaction time, drift along the shock front and distance of penetration (\"leaked\" ions are observed).","PeriodicalId":325870,"journal":{"name":"2011 XXXth URSI General Assembly and Scientific Symposium","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128609369","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
New research facilities of phased array and anechoic chamber for SPS SPS相控阵和消声室研究新设备
2011 XXXth URSI General Assembly and Scientific Symposium Pub Date : 2011-10-20 DOI: 10.1109/URSIGASS.2011.6050555
N. Shinohara
{"title":"New research facilities of phased array and anechoic chamber for SPS","authors":"N. Shinohara","doi":"10.1109/URSIGASS.2011.6050555","DOIUrl":"https://doi.org/10.1109/URSIGASS.2011.6050555","url":null,"abstract":"A Space Solar Power Satellite/Station (SPS) requires high efficiency and low cost phased array for a microwave power transmission from the SPS to ground. For the phased array of the SPS, we have developed new phased array research facility, new rectenna (rectifying antenna) array research facility, and a special anechoic chamber for the SPS experiment in Kyoto University in FY2010. In this paper, I show the characteristics of the new phased array and rectenna array. I also introduce the new anechoic chamber for the SPS in Kyoto University.","PeriodicalId":325870,"journal":{"name":"2011 XXXth URSI General Assembly and Scientific Symposium","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129266326","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
Equatorial travelling ionospheric disturbances (TIDs) compared with midlatitude TIDs 赤道电离层扰动(TIDs)与中纬度电离层扰动的比较
2011 XXXth URSI General Assembly and Scientific Symposium Pub Date : 2011-10-20 DOI: 10.1109/URSIGASS.2011.6050927
J. MacDougall, M. Abdu, I. Batista, R. Buriti, P. Jayachandran, G. Borba
{"title":"Equatorial travelling ionospheric disturbances (TIDs) compared with midlatitude TIDs","authors":"J. MacDougall, M. Abdu, I. Batista, R. Buriti, P. Jayachandran, G. Borba","doi":"10.1109/URSIGASS.2011.6050927","DOIUrl":"https://doi.org/10.1109/URSIGASS.2011.6050927","url":null,"abstract":"A spaced radio experiment for measuring the motions of F-region TIDs has been operated in Brazil since March 2010. The location is near the easternmost tip of Brazil at 7 deg. south latitude or about −11 deg. geomagnetic lat. These are the first systematic measurements of TIDs near the equator. The results are notably different from similar measurements at midlatitudes. It was originally expected that the TIDs in Brazil might be associated with weather disturbances in the Amazon region. However, the measurements do not seem to point to this or to any other obvious source during the period of these measurements.","PeriodicalId":325870,"journal":{"name":"2011 XXXth URSI General Assembly and Scientific Symposium","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124601005","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
Simultaneous EEG/EMG/fMRI: A powerful hybrid-imaging window on brain activation patterns during and following time-varying magnetic stimuli 同时脑电图/肌电图/功能磁共振成像:在时变磁刺激期间和之后的大脑激活模式的强大混合成像窗口
2011 XXXth URSI General Assembly and Scientific Symposium Pub Date : 2011-10-20 DOI: 10.1109/URSIGASS.2011.6051347
A. Legros, Jill A. Cates, J. Robertson, J. Modolo, Nicole Juen, Jodi E. Miller, F. Prato, A. Thomas
{"title":"Simultaneous EEG/EMG/fMRI: A powerful hybrid-imaging window on brain activation patterns during and following time-varying magnetic stimuli","authors":"A. Legros, Jill A. Cates, J. Robertson, J. Modolo, Nicole Juen, Jodi E. Miller, F. Prato, A. Thomas","doi":"10.1109/URSIGASS.2011.6051347","DOIUrl":"https://doi.org/10.1109/URSIGASS.2011.6051347","url":null,"abstract":"Bioelectromagnetics is a rapidly expanding research domain investing the interaction between electromagnetic stimuli and biological systems. Hybrid functional imaging is a growing domain with promising developments, opening new multidimensional windows on brain processing. Our group started to use functional Magnetic Resonance Imaging (fMRI) in counter-balanced blinded studies to investigate the effects of magnetic field exposure on brain activation in specific tasks. Results showed modulations of task-induced brain activation associated with exposure, suggesting increased haptic sensitivity. We are now proceeding to the next step by integrating electroencephalography, electromyography and fMRI to study exposure levels generating magnetophosphenes in healthy volunteers.","PeriodicalId":325870,"journal":{"name":"2011 XXXth URSI General Assembly and Scientific Symposium","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129437348","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
Capacitive feeding for slotted microstrip patch 开槽微带贴片电容馈电
2011 XXXth URSI General Assembly and Scientific Symposium Pub Date : 2011-10-20 DOI: 10.1109/URSIGASS.2011.6050300
Piyush Musale, S. Khobragade, V. Anitha
{"title":"Capacitive feeding for slotted microstrip patch","authors":"Piyush Musale, S. Khobragade, V. Anitha","doi":"10.1109/URSIGASS.2011.6050300","DOIUrl":"https://doi.org/10.1109/URSIGASS.2011.6050300","url":null,"abstract":"A Microstrip patch antenna having slotted sides with small capacitive feed has studied and discussed here. Slots on the proposed patch can be used to increase the bandwidth of antenna. It has observed that VSWR bandwidth nearly 45% can be easily achieved with the novel patch. A constant radiation pattern with improved bandwidth, for an operating frequency of 4.8 GHz can be easily achieved. Configuration of an antenna is easy to design. A very small feed strip is placed very close to the presented novel patch on the substrate above the ground plane. The given patch is act as radiating patch while feed strip couples the energy to radiating patch by capacitive mean. The model of antenna incorporates the capacitive feed strip which is fed by a coaxial probe by using equivalent approach. Effect of various parameters such as air gap between the substrate and the ground plane, probe diameter, the distance between the radiator patch and feed strip, and dimensions of the feed strip on the performance of the antenna has studied and there results has discussed here. A proposed patch can be used for various application in L-, S-, C- or X-band.","PeriodicalId":325870,"journal":{"name":"2011 XXXth URSI General Assembly and Scientific Symposium","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129898973","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
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