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11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]最新文献

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A convergence study of adaptive beamforming algorithms used in smart antenna systems 智能天线系统中自适应波束形成算法的收敛性研究
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852171
R. Shubair, A. Merri
{"title":"A convergence study of adaptive beamforming algorithms used in smart antenna systems","authors":"R. Shubair, A. Merri","doi":"10.1109/ANTEM.2005.7852171","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852171","url":null,"abstract":"This paper studies the convergence bahavior of adaptive beamforming algorithms used in smart antenna systems for wireless communications. Two algorithms are being investigated: Least Mean Square (LMS) and Recursive Least Square (RLS). The convergence of the algorithms is studied by investigating the effect of changing a number of parameters including number of interference signals, number of antenna elements, number of iterations, LMS step size, and RLS weighting factor.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114876384","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
Using multiple antennas in UWB communications 在超宽带通信中使用多天线
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852181
V. P. Tran, A. Sibille
{"title":"Using multiple antennas in UWB communications","authors":"V. P. Tran, A. Sibille","doi":"10.1109/ANTEM.2005.7852181","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852181","url":null,"abstract":"Extensions of traditional Single-Input Single-Output (SISO) UWB systems to Multiple Elements Antennas (MEA) at both ends of the links (MIMO: Multiple-Input Multiple-Output) are investigated. The mutual coupling in arrays of UWB biconical antennas and the radiation patterns are analyzed in time domain from measurement data in frequency domain. The contribution of MEA in UWB communications is evaluated in terms of Signal to Noise Ratio (SNR) gain from measured radio channel in Line Of Sight (LOS) and Non Line Of Sight (NLOS) environments.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114316032","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
A mutual coupling correction procedure for antenna arrays 天线阵列的相互耦合校正程序
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852114
Y. Letestu, K. Mahdjoubi, A. Sharaiha
{"title":"A mutual coupling correction procedure for antenna arrays","authors":"Y. Letestu, K. Mahdjoubi, A. Sharaiha","doi":"10.1109/ANTEM.2005.7852114","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852114","url":null,"abstract":"A simple method to evaluate the mutual coupling matrix in an antenna array is presented here. This global mutual coupling correction procedure is independent of the type of antenna. The method is firstly validated for a dipole array and then for a microstrip patch antenna array. Very good agreement between this mutual coupling correction and the reference solution is observed in both cases.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128676224","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
A 24 GHz microstrip antenna array with a non-radiative dielectric waveguide (NRD-guide) feeding network 采用非辐射介质波导馈电网络的24ghz微带天线阵列
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852158
U. Schmid, W. Menzel
{"title":"A 24 GHz microstrip antenna array with a non-radiative dielectric waveguide (NRD-guide) feeding network","authors":"U. Schmid, W. Menzel","doi":"10.1109/ANTEM.2005.7852158","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852158","url":null,"abstract":"A major restriction of high gain microstrip antenna arrays is found in their high losses, mainly due to the feeding network. In this contribution, design and results of a 24GHz microstrip array antenna with low loss, low cost and low profile NRD-guide feeding network are presented. Interconects between planar structures and NRD-guide feeding network are done by slot coupling. The feeding network for this antenna was implemented as NRD-guides, but in a later phase, it might be implemented as substrate integrated (SI) NRD-guides [1] with even lower production cost.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"65 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133077149","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
Semi-directional small antenna design for UWB multimedia terminals UWB多媒体终端半定向小天线设计
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852147
C. Roblin, A. Sibille, S. Bories
{"title":"Semi-directional small antenna design for UWB multimedia terminals","authors":"C. Roblin, A. Sibille, S. Bories","doi":"10.1109/ANTEM.2005.7852147","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852147","url":null,"abstract":"The design and results of a new UWB printed dipole antenna with a dielectric lens are presented.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116425571","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: 12
Combining of filtering and radiating functions for the design of x-band devices 结合滤波和辐射功能设计x波段器件
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852182
M. Troubat, S. Bila, M. Thevenot, D. Baillargeat, T. Monediere, S. Verdeyme, B. Jecko
{"title":"Combining of filtering and radiating functions for the design of x-band devices","authors":"M. Troubat, S. Bila, M. Thevenot, D. Baillargeat, T. Monediere, S. Verdeyme, B. Jecko","doi":"10.1109/ANTEM.2005.7852182","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852182","url":null,"abstract":"This paper deals with a new concept of filtering antenna. We present here, the design of combined functions: we show how to combine a filter and an antenna in order to integrate the filter in the radiation diagram and the antenna in the filtering function. The association of the two functions presents an acceptable return loss and a selective radiated power. We offer the possibility to realize system with on one hand a satisfying return loss and on the other hand a radiated power less limited by the return loss.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122212960","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
Assessment of the robustness of a neural network approach for the electromagnetic reconstruction of buried cylinders 埋地圆柱电磁重构的神经网络鲁棒性评价
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852045
S. Caorsi, G. Cevini
{"title":"Assessment of the robustness of a neural network approach for the electromagnetic reconstruction of buried cylinders","authors":"S. Caorsi, G. Cevini","doi":"10.1109/ANTEM.2005.7852045","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852045","url":null,"abstract":"The present paper is intended to give some insights into the application of a neural network approach to reconstruct buried cylinders by exploiting time-domain electromagnetic data acquired when the source is moving above the half-space. The robustness of the approach has been tested against variations in the a-priori information used to build the reconstruction algorithm in order to detect its limits of applicability.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125428391","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
A new version of Koch patch Antenna 新版本的科赫贴片天线
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852086
Muhammad Reza Haji-Hashemi, M. Fadaei, H. MirMohammad-Sadeghi, G. Askari
{"title":"A new version of Koch patch Antenna","authors":"Muhammad Reza Haji-Hashemi, M. Fadaei, H. MirMohammad-Sadeghi, G. Askari","doi":"10.1109/ANTEM.2005.7852086","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852086","url":null,"abstract":"Fractal geometry has been developed within the last quarter century for understanding geometries that cannot be easily defined by Euclidian geometry. Fractal geometry encompasses an iterative methodology for defining structures. A simple geometrical transformation is performed on a starting structure and the result is fed back into this same transformation many times.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130055236","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
Millimetre wave antenna research at Helsinki University of Technology 赫尔辛基工业大学毫米波天线研究
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852017
J. Ala-Laurinaho, J. Mallat, J. Häkli, T. Koskinen, A. Lönnqvist, V. Viikari, V. Möttönen, S. Dudorov, D. Lioubtchenko, A. Lehto, A. Räisänen
{"title":"Millimetre wave antenna research at Helsinki University of Technology","authors":"J. Ala-Laurinaho, J. Mallat, J. Häkli, T. Koskinen, A. Lönnqvist, V. Viikari, V. Möttönen, S. Dudorov, D. Lioubtchenko, A. Lehto, A. Räisänen","doi":"10.1109/ANTEM.2005.7852017","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852017","url":null,"abstract":"This paper describes the research work at the Radio Laboratory of Helsinki University of Technology concerning millimetre and submillimetre wave antenna technology: development of new antenna designs and, especially, development of antenna measurement techniques for electrically large, high-gain antennas. Also, development work of some related fields in millimetre wave instrumentation is presented.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127281158","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
A wide U-shape slot fed broadband dielectric resonator antenna 一种宽u形槽馈电宽带介质谐振器天线
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852116
Tso-Wei Li, Jwo-Shiun Sun
{"title":"A wide U-shape slot fed broadband dielectric resonator antenna","authors":"Tso-Wei Li, Jwo-Shiun Sun","doi":"10.1109/ANTEM.2005.7852116","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852116","url":null,"abstract":"A wide U-shape slot fed dielectric resonator antenna (DRA) is investigated experimentally. Using U-shape wide slot (the width of slot is about 7.5mm), a wideband DRA can be obtained. There are two adjacent modes can be induced simultaneously; then, these two modes achieve wider bandwidth than pure slot fed dielectric resonator antenna. The bandwidth of U-shape wide slot reaches about 20%. By this design, the bandwidth is enhanced almost five times pure slot fed dielectric resonator antenna.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128788359","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
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