发布求助
文献互助 智能选刊 最新文献

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

筛选
英文 中文
Directive frequency switched beam antenna based on EBG structures 基于EBG结构的定向频率开关波束天线
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852081
F. Ghanem, G. Delisle, T. Denidni, K. Ghanem
{"title":"Directive frequency switched beam antenna based on EBG structures","authors":"F. Ghanem, G. Delisle, T. Denidni, K. Ghanem","doi":"10.1109/ANTEM.2005.7852081","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852081","url":null,"abstract":"In this paper, a new type of smart antennas based on EBG material properties, and suitable for base stations deployment is presented. In traditional smart antennas, the beamforming is realized by means of phase shifts between several excited antennas constituting the network. The proposed smart antenna excites only one element and the beam switching is realized by exciting the antennas at different frequencies. Following the analytical presentation, both numerical and experimental results are given and discussed.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"52 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":"122645831","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 chaff cloud modelisation 箔条云建模
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852141
J. Pinchot, O. Béchu, P. Pouliguen
{"title":"A chaff cloud modelisation","authors":"J. Pinchot, O. Béchu, P. Pouliguen","doi":"10.1109/ANTEM.2005.7852141","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852141","url":null,"abstract":"The objective of this paper is to present a Chaff cloud Radar Cross Section (RCS) model, able to characterize battle ship autoprotection systems under operational configurations.","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":"123903448","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
5GHz indoor OFDM system using 4-element array antenna with analog phase shifter 5GHz室内OFDM系统采用4元阵列天线和模拟移相器
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852156
F. Sato, Yosuke Nakatsuka, H. Arai
{"title":"5GHz indoor OFDM system using 4-element array antenna with analog phase shifter","authors":"F. Sato, Yosuke Nakatsuka, H. Arai","doi":"10.1109/ANTEM.2005.7852156","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852156","url":null,"abstract":"5GHz band wireless LAN system in indoor environment suffers from multi-path distortion. It causes an attenuation of received power and frequency selective spectrum distortion. In this paper, we describe an array antenna system with analog phase shifter that has the robustness for the multi-path distortion. The proposed array antenna system is low cost and is not complex in the control circuit. We evaluate the error rate performance of OFDM system using our array antenna system by the computer simulation and the experimental measurement in indoor wireless LAN system. The computer simulation uses the channel frequency response based on the result from ray tracing. We specify our array antenna system only controls the direction of carioid beam pattern, and we compare our system performance with the performance of antenna selective diversity. The indoor experimental results show our system has better packet error performance with small footprint.","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":"125110013","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
Three dimensional structural parameter analysis on a balanced-fed dual-band built-in antenna for wideband wireless LAN systems 宽带无线局域网系统平衡馈电双频内置天线的三维结构参数分析
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852120
T. Maeda, Yoshitaka Nakamura, M. Asakawa
{"title":"Three dimensional structural parameter analysis on a balanced-fed dual-band built-in antenna for wideband wireless LAN systems","authors":"T. Maeda, Yoshitaka Nakamura, M. Asakawa","doi":"10.1109/ANTEM.2005.7852120","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852120","url":null,"abstract":"This paper describes the basic design, the optimization, and the overall performance of the balanced-fed dual-band built-in antenna. The four major key structural parameters of this antenna including the additional parameter h3 were optimized for the dual-band operation in Japan using the efficient parallel Method of Moment based on the 16 parallel PC cluster system. The bandwidth of 340 MHz for 2.4 GHz band and that of 480 MHz for 5 GHz band have been obtained after the structural parameter optimization. Also, the RF current on the metallic plate was evaluated in order to confirm the validity of the proposed antenna with balanced-fed. Finally, the optimized antenna configuration was evaluated experimentally. The measurement results demonstrate the bandwidths of 246 MHz for 2.4 GHz band and 325 MHz for 5 GHz band, which are sufficiently wide for the assigned frequency bands for the 2.4 GHz WLAN system and the 5 GHz indoor W LAN system in Japan.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"35 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":"125728550","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
The analysis of ultra wideband wheel microstrip patch antenna using non-uniform photonic bandgap substrate structure 基于非均匀光子带隙衬底结构的超宽带轮式微带贴片天线分析
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852119
Y. Madany, H. Elkamchouchi
{"title":"The analysis of ultra wideband wheel microstrip patch antenna using non-uniform photonic bandgap substrate structure","authors":"Y. Madany, H. Elkamchouchi","doi":"10.1109/ANTEM.2005.7852119","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852119","url":null,"abstract":"The characteristics of new ultra wideband (UWB) wheel microstrip patch antenna using non-uniform photonic bandgap (PBG) substrate structure has been analyzed using a full 3D electromagnetic field inside a structure based on the finite element method. The UWB technologies have been developed to exploit a substantially new spectrum resource and to realize ultra high-speed communication, high precision radar, and other sensing systems. The antenna has UWB approximately in range of 1 MHz to 20 GHz and its performance above 20 GHz is sensitive to the gap position in the ground plane. These gap positions enhance some modes and weaken others, which have been used to control the antenna bandwidths up to 31.4 %. The proposed antenna is constructed on ground plane of thickness 0.1 mm and FR-4 epoxy substrate of thickness 1.6 mm with relative permittivity 4.4. The radiation characteristics for the designed antenna such as return loss, input impedance, near field, radiation pattern and 3D-polar radiation pattern with respect to changes on the air gap position in the ground plane are obtained using numerical simulations.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"23 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":"124990705","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 a self-matched dual-frequency coplanar waveguide-fed-slot antenna 自匹配双频共面波导馈电槽天线的设计
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852136
A. Omar, N. Dib, Z. M. Hejazi
{"title":"Design of a self-matched dual-frequency coplanar waveguide-fed-slot antenna","authors":"A. Omar, N. Dib, Z. M. Hejazi","doi":"10.1109/ANTEM.2005.7852136","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852136","url":null,"abstract":"This paper presents two new designs of dual frequency coplanar waveguide (CPW)-fed double folded slot antennas. This includes both conductor backed and non-conductor backed CPW that radiate into a half space or full space, respectively. An important advantage of these antennas is that each is self-matched to 50 Ω CPW feed line without the need for external matching circuit. This reduces the antenna size and simplifies its design. To verify the designs, the return loss and radiation patterns are obtained using different commercial software, which employ different full wave methods.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"29 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":"125089637","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
Reflectarrays antennas for SAR missions SAR任务用反射射线天线
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852111
H. Legay, B. Salome, E. Girard, S. Ramongassie, J. Encinar, G. Toso
{"title":"Reflectarrays antennas for SAR missions","authors":"H. Legay, B. Salome, E. Girard, S. Ramongassie, J. Encinar, G. Toso","doi":"10.1109/ANTEM.2005.7852111","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852111","url":null,"abstract":"Three distinct applications have been described which show the interest of reflectarray antennas for SAR missions in X band.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"103 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":"121128813","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
Formal expressions for the solution of Dirichlet and Neumann problems 狄利克雷和诺伊曼问题解的形式表达式
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852052
I. Ciric
{"title":"Formal expressions for the solution of Dirichlet and Neumann problems","authors":"I. Ciric","doi":"10.1109/ANTEM.2005.7852052","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852052","url":null,"abstract":"Based on the relationship between the potential and its normal derivative on the boundary of the region of interest, the solution of the Dirichlet and the Neumann boundary value problems relative to the Laplacian is written explicitly in an operator form. The numerical computation of the potential for regions of arbitrary shape is performed by converting the two boundary operators involved into square matrices, which only depend on the boundary shape. The formulas presented are of interest since they allow a direct calculation of the potential in a given region under any Dirichlet or Neumann boundary conditions. These solution formulas represent for regions of arbitrary geometry what the direct integration Green formulas represent for some canonical regions for which the problem-specific Green functions can be constructed analytically.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"23 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":"130372238","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
Probe compensated NF-FF transformation with planar wide-mesh scanning 平面宽网格扫描探针补偿NF-FF变换
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852058
F. D’Agostino, C. Gennarelli, R. Guerriero, G. Riccio, C. Savarese
{"title":"Probe compensated NF-FF transformation with planar wide-mesh scanning","authors":"F. D’Agostino, C. Gennarelli, R. Guerriero, G. Riccio, C. Savarese","doi":"10.1109/ANTEM.2005.7852058","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852058","url":null,"abstract":"The Near-Field - Far-Field (NF-FF) transformation technique with plane-rectangular scanning is undoubtedly the most simple and efficient one from the analytical and computational viewpoints. However, the antenna far field can be reconstructed only in a cone with an apex angle less than 180° unless repeating the measurements. Accordingly, such a scanning is particularly suitable for highly directive antennas radiating pencil beam patterns.","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":"128622404","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
Sources for total-field/scattered-field formulation in FDTD simulation using approximations to dispersion equation 利用频散方程的近似进行时域有限差分模拟中的全场/散射场公式
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI: 10.1109/ANTEM.2005.7852177
T. Tan, M. Potter
{"title":"Sources for total-field/scattered-field formulation in FDTD simulation using approximations to dispersion equation","authors":"T. Tan, M. Potter","doi":"10.1109/ANTEM.2005.7852177","DOIUrl":"https://doi.org/10.1109/ANTEM.2005.7852177","url":null,"abstract":"A full set of numerical wave number k that includes imaginary part as function of frequency can now be obtained by a simple procedure which does not involve numerical root-finding scheme. FFT computation and data storage for the entire time sequence of all fields along the grids can also be avoided by approximating frequency domain inverse transform. The results of the initial numerical simulation are encouraging but are limited by the numbers of terms in the derivative expansions. Other numerical approximations are being investigated and these will be the focus of the presentation.","PeriodicalId":360668,"journal":{"name":"11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]","volume":"10 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":"134262151","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信