发布求助
文献互助 智能选刊 最新文献

IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics, 2005.最新文献

筛选
英文 中文
Fast full-wave analysis of distributed MEMS transmission lines by the MoL 分布式MEMS传输线的快速全波分析
IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics, 2005. Pub Date : 2005-04-03 DOI: 10.1109/WCACEM.2005.1469697
W. Pascher, R. Pregla, L. Vietzorreck
{"title":"Fast full-wave analysis of distributed MEMS transmission lines by the MoL","authors":"W. Pascher, R. Pregla, L. Vietzorreck","doi":"10.1109/WCACEM.2005.1469697","DOIUrl":"https://doi.org/10.1109/WCACEM.2005.1469697","url":null,"abstract":"Growing interest in MEMS devices employing a high number of movable elements increases the need for a fast but rigorous simulation tool. Full discretization methods are too time-consuming for these finite periodic circuits, but the method of lines (MoL) enables an efficient full-wave analysis. The CPU time is completely independent of the number of periods because of the analytical solution in longitudinal direction and the use of Floquet modes as eigensolutions. Distributed MEMS transmission lines (DTMLs) with up to 45 bridges are investigated.","PeriodicalId":368249,"journal":{"name":"IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics, 2005.","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132836156","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: 4
Eddy currents in a gradient coil, modeled by rings and patches 梯度线圈中的涡流，用环状和斑块来模拟
IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics, 2005. Pub Date : 2005-04-03 DOI: 10.1109/WCACEM.2005.1469596
J. Kroot, S. V. van Eijndhoven, A. van de Ven
{"title":"Eddy currents in a gradient coil, modeled by rings and patches","authors":"J. Kroot, S. V. van Eijndhoven, A. van de Ven","doi":"10.1109/WCACEM.2005.1469596","DOIUrl":"https://doi.org/10.1109/WCACEM.2005.1469596","url":null,"abstract":"The gradient coils of an MRI-scanner can be modeled by a surface current on a cylinder. A good approximation of the surface current in the z-coil is obtained from a set of rings and patches on the cylinder. In this paper, an integral equation is derived for the current distribution. To solve this integral equation, the Galerkin method is applied, using global expansion functions. We show that Legendre polynomials are an appropriate choice for the expansion functions. They provide fast convergence. So, only a restricted number of Legendre polynomials is needed. Moreover, an analytical solution is derived, which results in efficient simulations.","PeriodicalId":368249,"journal":{"name":"IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics, 2005.","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134277710","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
Deterministic channel modeling and performance of monopolarized and multipolarized MIMO wireless channels 单极和多极化MIMO无线信道的确定性信道建模和性能
IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics, 2005. Pub Date : 2005-04-03 DOI: 10.1109/WCACEM.2005.1469624
N. Prayoungpun, K. Raoof
{"title":"Deterministic channel modeling and performance of monopolarized and multipolarized MIMO wireless channels","authors":"N. Prayoungpun, K. Raoof","doi":"10.1109/WCACEM.2005.1469624","DOIUrl":"https://doi.org/10.1109/WCACEM.2005.1469624","url":null,"abstract":"A novel approach of the deterministic channel models for multiple-input multiple-output (MIMO) is presented in this paper. Monopolarized and multipolarized antennas are examined on a geometrical distribution of scatterers simplified for the diffusing waves. Thee geometrical models employed are defined in COST259. The proposed model takes into account the transmit antenna and receive antenna patterns, Doppler spectrum, dyadic coefficients and the polarization of antennas for the narrowband case in macrocells. Each scattering process is represented by a dyadic matrix corresponding to the depolarization and the distortion of the electromagnetic wave. Through simulations, the ergodic capacities and the outage capacities of monopolarization and multipolarization of 2 /spl times/ 2 MIMO channels are presented on the richness of scattering. The results of simulations show that the largest spread angle at the receiver is proved for the best capacity.","PeriodicalId":368249,"journal":{"name":"IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics, 2005.","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125545656","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: 4
EMANT: integration of GiD and Kratos, open and flexible computational tools EMANT:集成GiD和Kratos，开放和灵活的计算工具
IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics, 2005. Pub Date : 2005-04-03 DOI: 10.1109/WCACEM.2005.1469725
R. Otin, J. Mora, E. Oñate
{"title":"EMANT: integration of GiD and Kratos, open and flexible computational tools","authors":"R. Otin, J. Mora, E. Oñate","doi":"10.1109/WCACEM.2005.1469725","DOIUrl":"https://doi.org/10.1109/WCACEM.2005.1469725","url":null,"abstract":"The advantages and drawbacks of GiD, Kratos and EMANT has been presented. The main feature of these computer tools is that they can be used to craft customized numerical simulation programs: GiD for geometrical modeling, data input and visualization of results. Kratos as starting point for a C++ finite element code, and finally, EMANT, can be seen as an example of how to blend Kratos and GiD to analyze electromagnetic problems.","PeriodicalId":368249,"journal":{"name":"IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics, 2005.","volume":"148 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122130931","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
Feedback equalization for MIMO systems MIMO系统的反馈均衡
IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics, 2005. Pub Date : 2005-04-03 DOI: 10.1109/WCACEM.2005.1469672
K. Ghanem, T. Denidni
{"title":"Feedback equalization for MIMO systems","authors":"K. Ghanem, T. Denidni","doi":"10.1109/WCACEM.2005.1469672","DOIUrl":"https://doi.org/10.1109/WCACEM.2005.1469672","url":null,"abstract":"This paper aims to present a new approach for adaptive spatio-temporal DFE-based equalization applied to MIMO channels. The proposed MIMO-DFE is uses finite length feedforward and feedback matrix filters for the estimated channel. In addition the constraints of equal number channel inputs and outputs is removed and the receiver uses past and currently detected symbols to cancel the interference.","PeriodicalId":368249,"journal":{"name":"IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics, 2005.","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115838576","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
FDTD analysis of a new leaky traveling wave antenna 一种新型漏行波天线的FDTD分析
IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics, 2005. Pub Date : 2005-04-03 DOI: 10.1109/WCACEM.2005.1469551
G. Zelinski, M. L. Hastriter, M. Havrilla, J. S. Radcliffe, Andrew Terzuoli, G. A. Theile
{"title":"FDTD analysis of a new leaky traveling wave antenna","authors":"G. Zelinski, M. L. Hastriter, M. Havrilla, J. S. Radcliffe, Andrew Terzuoli, G. A. Theile","doi":"10.1109/WCACEM.2005.1469551","DOIUrl":"https://doi.org/10.1109/WCACEM.2005.1469551","url":null,"abstract":"A new antenna is proposed based on a structure first constructed by Menzel (1979) that utilizes the leaky wave phenomena of the first higher order mode. This work seeks to determine the effect on performance of the antenna due to varying geometries. Standard antenna range far-field and near-field measurements are not sensitive enough to extract the propagation constant. A numerical simulation was thus developed using the finite difference time domain (FDTD) method to extract the propagation constant. The simulation was validated with published analytical data as well as measured data.","PeriodicalId":368249,"journal":{"name":"IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics, 2005.","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124743423","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: 27
Combined-field solution of composite geometries involving open and closed conducting surfaces 涉及开导面和闭导面的复合几何的联合场解
IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics, 2005. Pub Date : 2005-04-03 DOI: 10.1109/WCACEM.2005.1469592
O. Ergul, L. Gurel
{"title":"Combined-field solution of composite geometries involving open and closed conducting surfaces","authors":"O. Ergul, L. Gurel","doi":"10.1109/WCACEM.2005.1469592","DOIUrl":"https://doi.org/10.1109/WCACEM.2005.1469592","url":null,"abstract":"Combined-field integral equation (CFIE) is modified and generalized to formulate the electromagnetic problems of composite geometries involving both open and closed conducting surfaces. These problems are customarily formulated with the electric-field integral equation (EFIE) due to the presence of the open surfaces. With the new definition and application of the CFIE, iterative solutions of these problems are now achieved with significantly improved efficiency compared to the EFIE solution, without sacrificing the accuracy.","PeriodicalId":368249,"journal":{"name":"IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics, 2005.","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124820045","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
Analysis of electromagnetic fields in inhomogeneous medium by Fourier series expansion methods 用傅立叶级数展开法分析非均匀介质中的电磁场
IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics, 2005. Pub Date : 2005-04-03 DOI: 10.1109/WCACEM.2005.1469733
T. Yamasaki, K. Isono, T. Hinata
{"title":"Analysis of electromagnetic fields in inhomogeneous medium by Fourier series expansion methods","authors":"T. Yamasaki, K. Isono, T. Hinata","doi":"10.1109/WCACEM.2005.1469733","DOIUrl":"https://doi.org/10.1109/WCACEM.2005.1469733","url":null,"abstract":"In this paper, a new method is proposed for the electromagnetic fields with inhomogeneous medium mixed the positive/negative by the combination of improved Fourier series expansion method using the extrapolation method. Numerical results are given for the reflection and transmission coefficients, and the electromagnetic fields in the inhomogeneous region of the positive and contained the singular point (zero) for the case of TM wave using the eigenvalue and eigenvectors obtained by the extrapolation method.","PeriodicalId":368249,"journal":{"name":"IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics, 2005.","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134201568","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
Slot antenna for ultra wideband system 用于超宽带系统的槽天线
IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics, 2005. Pub Date : 2005-04-03 DOI: 10.1109/WCACEM.2005.1469564
K. Y. Yazdandoost, R. Kohno
{"title":"Slot antenna for ultra wideband system","authors":"K. Y. Yazdandoost, R. Kohno","doi":"10.1109/WCACEM.2005.1469564","DOIUrl":"https://doi.org/10.1109/WCACEM.2005.1469564","url":null,"abstract":"A rising interest of wireless communication from simple data transfer to multimedia leads to an increasing demand for high data rates transmission. Therefore, the ultra wideband (UWB) system with its inherently high bandwidth could be a possible solution. The antenna design for UWB signal is one of the main challenges, especially when low-cost, geometrically small and radio efficient structures are required for typical applications. This work presents a novel slot bow-tie antenna (patent applied for) for the frequency range of 3.1-10.6 GHz. The antenna is designed on Teflon substrate and fed with 50 ohms microstrip transmission line.","PeriodicalId":368249,"journal":{"name":"IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics, 2005.","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132326607","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
Microwave/millimeter wave metamaterial development using the design of experiments technique 微波/毫米波超材料开发利用实验设计技术
IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics, 2005. Pub Date : 2005-04-03 DOI: 10.1109/WCACEM.2005.1469614
D. Staiculescu, N. Bushyager, M. Tentzeris
{"title":"Microwave/millimeter wave metamaterial development using the design of experiments technique","authors":"D. Staiculescu, N. Bushyager, M. Tentzeris","doi":"10.1109/WCACEM.2005.1469614","DOIUrl":"https://doi.org/10.1109/WCACEM.2005.1469614","url":null,"abstract":"The successful use of design of experiments (DOE) approach in a feasibility and design study of a metamaterial structure is presented. The frequency of interest is 40 GHz and the technology used is multilayer low temperature cofired ceramic (LTCC). The chosen approach for the double negative metamaterial implementation is a loaded coplanar waveguide (CPW) transmission line. The design goals are a resonant frequency of 40 GHz and minimum insertion loss at that frequency. The electromagnetic performance of the loaded transmission line is simulated with a full wave time domain commercial simulator. The results of these simulations are incorporated into the DOE technique. First, the significant factors in achieving each of the goals are identified, then statistical models are developed for the two output variables and applied to optimize the structure.","PeriodicalId":368249,"journal":{"name":"IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics, 2005.","volume":"30 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131775112","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
小红书