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2005 18th International Conference on Applied Electromagnetics and Communications最新文献

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Terahertz Detection and Spectroscopy Based on High-Tc Josephson Junctions 基于高tc约瑟夫森结的太赫兹探测与光谱学
2005 18th International Conference on Applied Electromagnetics and Communications Pub Date : 1900-01-01 DOI: 10.1109/ICECOM.2005.204940
Y. Divin, M. V. Liatti, D. A. Tkachev, V. Pavlovskii, V. Shirotov, O. Volkov, U. Poppe, C. Jia, V. Gubankov, K. Urban
{"title":"Terahertz Detection and Spectroscopy Based on High-Tc Josephson Junctions","authors":"Y. Divin, M. V. Liatti, D. A. Tkachev, V. Pavlovskii, V. Shirotov, O. Volkov, U. Poppe, C. Jia, V. Gubankov, K. Urban","doi":"10.1109/ICECOM.2005.204940","DOIUrl":"https://doi.org/10.1109/ICECOM.2005.204940","url":null,"abstract":"Frequency-selective and broadband high-Tc Josephson detectors have been fabricated and characterized. A spectral range from 15 GHz to 5.3 THz has been demonstrated for these detectors. A power dynamic range of 50 dB and a noise equivalent power of 10-14 W/Hz1/2 have been realized. A spectral resolution deltaf/f of 10-3 has been achieved in the terahertz range. As an alternative to Fourier-transform spectroscopy, fast Hilbert-transform spectroscopy, based on these detectors, has been applied for various cw and pulsed terahertz sources","PeriodicalId":102260,"journal":{"name":"2005 18th International Conference on Applied Electromagnetics and Communications","volume":"18 3 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":"129422426","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 Unique Solution for H-Scattering from 2-D Roughness on a PEC Plane PEC平面上二维粗糙度h散射的唯一解
2005 18th International Conference on Applied Electromagnetics and Communications Pub Date : 1900-01-01 DOI: 10.1109/ICECOM.2005.205032
A. Tyzhnenko, Y. Ryeznik
{"title":"A Unique Solution for H-Scattering from 2-D Roughness on a PEC Plane","authors":"A. Tyzhnenko, Y. Ryeznik","doi":"10.1109/ICECOM.2005.205032","DOIUrl":"https://doi.org/10.1109/ICECOM.2005.205032","url":null,"abstract":"A unique solution for H-scattering from a roughness (boss or indentation) on a PEC ground plane in the two-dimensional case is obtained making use of a new method that combine the Galerkin MoM on entire-domain basis and the Rayleigh's method expansion of a solution in terms of the eigensolutions of Helmholtz equation in cylindrical coordinates. This method uses the dividing of upper space into two parts making use of a semi-circumference that encloses a roughness. Numerical calculations are enacted on the roughness surface only and then give a solution in a very economical way for any grazing. It is worth noting that this method is also applicable for the tree-dimensional scalar case as well","PeriodicalId":102260,"journal":{"name":"2005 18th International Conference on Applied Electromagnetics and Communications","volume":"19 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":"131371764","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 Politics of Positioning 定位的政治
2005 18th International Conference on Applied Electromagnetics and Communications Pub Date : 1900-01-01 DOI: 10.1109/ICECOM.2005.204993
D. Broughton
{"title":"The Politics of Positioning","authors":"D. Broughton","doi":"10.1109/ICECOM.2005.204993","DOIUrl":"https://doi.org/10.1109/ICECOM.2005.204993","url":null,"abstract":"On the basis that academics, engineers and operators understand the technical aspects of GNSS but rarely consider institutional issues, this paper describes some of the political considerations associated with GPS, Galileo and Loran. It concludes that whilst Galileo will be a technical success, its financial viability is questionable","PeriodicalId":102260,"journal":{"name":"2005 18th International Conference on Applied Electromagnetics and Communications","volume":"2 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":"131526147","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
Genetical Swarm Optimization: a New Hybrid Evolutionary Algorithm for Electromagnetic Applications 遗传群优化:一种新的电磁应用混合进化算法
2005 18th International Conference on Applied Electromagnetics and Communications Pub Date : 1900-01-01 DOI: 10.1109/ICECOM.2005.204967
E. A. Grimaldi, F. Grimaccia, M. Mussetta, P. Pirinoli, R. Zich
{"title":"Genetical Swarm Optimization: a New Hybrid Evolutionary Algorithm for Electromagnetic Applications","authors":"E. A. Grimaldi, F. Grimaccia, M. Mussetta, P. Pirinoli, R. Zich","doi":"10.1109/ICECOM.2005.204967","DOIUrl":"https://doi.org/10.1109/ICECOM.2005.204967","url":null,"abstract":"In this paper a new effective optimization algorithm suitably developed for electromagnetic applications called genetical swarm optimization (GSO) will be presented. This is an hybrid algorithm developed in order to combine in the most effective way the properties of two of the most popular evolutionary optimization approaches now in use for the optimization of electromagnetic structures, the particle swarm optimization (PSO) and genetic algorithms (GA). This algorithm is essentially, as PSO and GA, a population-based heuristic search technique, which can be used to solve combinatorial optimization problems, modeled on the concepts of natural selection and evolution (GA) but also based on cultural and social rules derived from the analysis of the swarm intelligence and from the interaction among particles (PSO). The algorithm is tested here with respect to the other optimization techniques dealing with two typical problems, a purely mathematical one, the search for the global maximum of a multi-dimensional sine function and an electromagnetic application, the optimization of a linear array","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":"131790483","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: 20
Image formation and detection in metamaterial super-lenses 超材料超透镜的图像形成与检测
2005 18th International Conference on Applied Electromagnetics and Communications Pub Date : 1900-01-01 DOI: 10.1109/ICECOM.2005.204979
R. Marqués, F. Mesa, M. Freire, J. Baena
{"title":"Image formation and detection in metamaterial super-lenses","authors":"R. Marqués, F. Mesa, M. Freire, J. Baena","doi":"10.1109/ICECOM.2005.204979","DOIUrl":"https://doi.org/10.1109/ICECOM.2005.204979","url":null,"abstract":"The aim of this contribution is to analyze the sub-diffraction image formation and detection in metamaterial super-lenses. It is shown that, owing to the evanescent nature of the involved electromagnetic fields, the image detection process can yield quite different results from those expected from the image formation theory. In particular, it is shown that, under some circumstances, an appropriate detection procedure would lead to a three-dimensional imaging. The reported results are expected to help to clarify some previously reported experimental results","PeriodicalId":102260,"journal":{"name":"2005 18th International Conference on Applied Electromagnetics and Communications","volume":"7 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":"132620959","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
Education in Antennas, Wave Propagation and Microw Ave Techniques 天线、波传播和微波技术教育
2005 18th International Conference on Applied Electromagnetics and Communications Pub Date : 1900-01-01 DOI: 10.1109/ICECOM.2005.205003
M. Mazanek, M. Polivka, P. Černý, P. Piksa, P. Pechac
{"title":"Education in Antennas, Wave Propagation and Microw Ave Techniques","authors":"M. Mazanek, M. Polivka, P. Černý, P. Piksa, P. Pechac","doi":"10.1109/ICECOM.2005.205003","DOIUrl":"https://doi.org/10.1109/ICECOM.2005.205003","url":null,"abstract":"The paper is focused on teaching \"applied microwaves\". Attention is turned to antennas, but the same structure in possible to apply for wave propagation, microwaves and EMC in their whole. The structure of the education is based on the theory followed by the computer simulations, the theoretical and engineering design and development, the measurement and final evaluation, which acts as the feedback between the goals and the results. A mutual cohesion between teaching the antenna disciplines as well as many other supports (material science and engineering, engineering design, numerical methods, CAD) is mentioned. Important role of laboratory experiments based on flexible experimental set-ups is introduced, including the possibility of distant (Internet) laboratory excess","PeriodicalId":102260,"journal":{"name":"2005 18th International Conference on Applied Electromagnetics and Communications","volume":"157 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":"122305263","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: 8
An Integrated Microstrip Miniloop Antenna for Short Range Communications in Ubiquitous AVM 一种用于通用AVM中短距离通信的集成微带微环天线
2005 18th International Conference on Applied Electromagnetics and Communications Pub Date : 1900-01-01 DOI: 10.1109/ICECOM.2005.204949
N. Angwafo, G. Monich
{"title":"An Integrated Microstrip Miniloop Antenna for Short Range Communications in Ubiquitous AVM","authors":"N. Angwafo, G. Monich","doi":"10.1109/ICECOM.2005.204949","DOIUrl":"https://doi.org/10.1109/ICECOM.2005.204949","url":null,"abstract":"The principles of operation and equivalent circuit of a microstrip miniloop antenna are presented. Two possible uses hereof namely as a wake up and a communication antenna are discussed. An appraisal of performance parameters, the attainable effective height for the former and the path loss for the latter follows. To circumvent the difficulties involved in directly measuring these quantities, an alternative measurement procedure using a GTEM cell is elaborated. In a novel communication philosophy entitled wattless Wake Up, the open-circuit voltage of the structure is passed through a detector and a low-loss cascade of CMOS-FETs to switch on the system. Preliminary pattern and impedance measurements in good agreement with theory and simulation are also presented","PeriodicalId":102260,"journal":{"name":"2005 18th International Conference on Applied Electromagnetics and Communications","volume":"9 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":"127804372","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
Multi-grid SFX-MR approach for the analysis of large arrays 大型阵列多网格SFX-MR分析方法
2005 18th International Conference on Applied Electromagnetics and Communications Pub Date : 1900-01-01 DOI: 10.1109/ICECOM.2005.205021
P. Pirinoli, L. Matekovits, F. Vipiana, G. Vecchi, M. Orefice
{"title":"Multi-grid SFX-MR approach for the analysis of large arrays","authors":"P. Pirinoli, L. Matekovits, F. Vipiana, G. Vecchi, M. Orefice","doi":"10.1109/ICECOM.2005.205021","DOIUrl":"https://doi.org/10.1109/ICECOM.2005.205021","url":null,"abstract":"In this paper, a technique for the accurate analysis of large and/or complex arrays with limited numerical effort is presented. The method combines the synthetic basis function expansion (SFX) approach and the multi-resolution (MR) approach, both devoted to reducing the MoM-based analysis computational effort, but in different ways. The SFX generates few global basis functions on portions of the array, and uses them as basis functions in the whole structure analysis; the MR approach manages to generate \"wavelet-like\" hierarchical multiscale vector functions for any meshed geometry, and well controls the MoM condition number. Here the results of the combination of the two techniques will be presented: they will show that, taking advantages of the complementary properties of the two schemes, the computation cost needed for the analysis of large arrays is further reduced","PeriodicalId":102260,"journal":{"name":"2005 18th International Conference on Applied Electromagnetics and Communications","volume":"14 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":"121115853","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
Models for Simulating Switched Beam Antennas in Radio Planning 无线电规划中切换波束天线的仿真模型
2005 18th International Conference on Applied Electromagnetics and Communications Pub Date : 1900-01-01 DOI: 10.1109/ICECOM.2005.204972
J. I. Simões, Ivica Stevanović, Anja K. Skrivervik
{"title":"Models for Simulating Switched Beam Antennas in Radio Planning","authors":"J. I. Simões, Ivica Stevanović, Anja K. Skrivervik","doi":"10.1109/ICECOM.2005.204972","DOIUrl":"https://doi.org/10.1109/ICECOM.2005.204972","url":null,"abstract":"This paper presents two models of switched beam antennas that can be used in radio planning and interference mitigation studies based on Monte-Carlo analysis. The models are implemented in a sharing and compatibility study of two different radio systems that share the same geographical area and have neighboring frequency bands. The results agree very well with the one obtained using measured radiation patterns of the switched beam antenna, eliminating the inconvenience to know the radiation pattern of all the beams in the switched beam antenna","PeriodicalId":102260,"journal":{"name":"2005 18th International Conference on Applied Electromagnetics and Communications","volume":"57 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":"116685071","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
Overview of some progress of mobile terminal antenna technology 综述了移动终端天线技术的一些进展
2005 18th International Conference on Applied Electromagnetics and Communications Pub Date : 1900-01-01 DOI: 10.1109/ICECOM.2005.204914
Z. Ying
{"title":"Overview of some progress of mobile terminal antenna technology","authors":"Z. Ying","doi":"10.1109/ICECOM.2005.204914","DOIUrl":"https://doi.org/10.1109/ICECOM.2005.204914","url":null,"abstract":"This paper discusses the recent development in mobile terminal antenna technology. Some issues are discussed: varies multiband-antenna concepts, antenna integrations, multi-channel antenna applications, human body interaction with terminal antennas, and tests methods for mobile terminals","PeriodicalId":102260,"journal":{"name":"2005 18th International Conference on Applied Electromagnetics and Communications","volume":"25 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":"116737760","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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