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2010 URSI International Symposium on Electromagnetic Theory最新文献

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Different retrieval methods based on S-parameters for the permittivity of composites 基于s参数的复合材料介电常数不同检索方法
2010 URSI International Symposium on Electromagnetic Theory Pub Date : 2010-11-15 DOI: 10.1109/URSI-EMTS.2010.5637161
J. Qi, H. Kettunen, H. Wallén, A. Sihvola
{"title":"Different retrieval methods based on S-parameters for the permittivity of composites","authors":"J. Qi, H. Kettunen, H. Wallén, A. Sihvola","doi":"10.1109/URSI-EMTS.2010.5637161","DOIUrl":"https://doi.org/10.1109/URSI-EMTS.2010.5637161","url":null,"abstract":"In this presentation, four different S-parameter-based retrieval methods for the constitutive parameters are proposed and utilized to investigate the broadband effective permittivity of several geometrically simple composites. The accuracy and validity of these approaches are then explored by comparisons between the retrieved results, and a comparison of these results with the quasi-static Lord Rayleigh prediction.","PeriodicalId":404116,"journal":{"name":"2010 URSI International Symposium on Electromagnetic Theory","volume":"232 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115565367","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
Statistical evaluation and modeling of the wideband Car-to-Car channel at 5.7 GHz 5.7 GHz宽带车对车信道的统计评估与建模
2010 URSI International Symposium on Electromagnetic Theory Pub Date : 2010-11-15 DOI: 10.1109/URSI-EMTS.2010.5637334
P. Paschalidis, Kim Mahler, A. Kortke, M. Peter, M. Wisotzki, W. Keusgen
{"title":"Statistical evaluation and modeling of the wideband Car-to-Car channel at 5.7 GHz","authors":"P. Paschalidis, Kim Mahler, A. Kortke, M. Peter, M. Wisotzki, W. Keusgen","doi":"10.1109/URSI-EMTS.2010.5637334","DOIUrl":"https://doi.org/10.1109/URSI-EMTS.2010.5637334","url":null,"abstract":"In this paper we offer a statistical evaluation for car-to-car measurements with a wideband 2 × 2 Multiple Input Multiple Output (MIMO) channel sounder with a calibrated bandwidth of 1 GHz. The results are further employed as a basis for a physically motivated channel model. The main concept of the presented approach is the modeling of the resolved multipath components both in the delay as well as in the Doppler domain, by means of statistically parametrized functions approximating the measured results.","PeriodicalId":404116,"journal":{"name":"2010 URSI International Symposium on Electromagnetic Theory","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115314973","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
Low frequency electromagnetic scattering from metallic discs 金属圆盘的低频电磁散射
2010 URSI International Symposium on Electromagnetic Theory Pub Date : 2010-11-15 DOI: 10.1109/URSI-EMTS.2010.5637198
A. Osipov
{"title":"Low frequency electromagnetic scattering from metallic discs","authors":"A. Osipov","doi":"10.1109/URSI-EMTS.2010.5637198","DOIUrl":"https://doi.org/10.1109/URSI-EMTS.2010.5637198","url":null,"abstract":"Electromagnetic scattering from an electrically small circular PEC disc is considered. The exact solution of the scattering problem given by Meixner and Andrejewski is used to derive the low frequency (Rayleigh) approximation for the scattered field. The results are compared with those obtained by expanding the fields on the disc in powers of k. Characteristic features of the low frequency scattering from the disc are studied, and closed-form approximations for various scattering cross sections are presented.","PeriodicalId":404116,"journal":{"name":"2010 URSI International Symposium on Electromagnetic Theory","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115715019","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
Development of the TLM method for EMC/EMI analysis 电磁兼容/电磁干扰TLM分析方法的发展
2010 URSI International Symposium on Electromagnetic Theory Pub Date : 2010-11-15 DOI: 10.1109/URSI-EMTS.2010.5636987
D. Johns
{"title":"Development of the TLM method for EMC/EMI analysis","authors":"D. Johns","doi":"10.1109/URSI-EMTS.2010.5636987","DOIUrl":"https://doi.org/10.1109/URSI-EMTS.2010.5636987","url":null,"abstract":"TLM is a well established full wave time-domain method for solving electromagnetic fields. TLM has been successfully applied to a diverse range of problems, including microwave component and antenna design, and it is particularly well-suited to EMI analysis. This paper reviews the developments of TLM for EMC/EMI analysis and presents a simulated aircraft lightning application.","PeriodicalId":404116,"journal":{"name":"2010 URSI International Symposium on Electromagnetic Theory","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114246231","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
A comparison of different magnetic force distributions with respect to mechanical deformations using a hybrid calculation method 用混合计算方法比较不同磁力分布对机械变形的影响
2010 URSI International Symposium on Electromagnetic Theory Pub Date : 2010-11-15 DOI: 10.1109/URSI-EMTS.2010.5637343
T. Preisner, W. Mathis
{"title":"A comparison of different magnetic force distributions with respect to mechanical deformations using a hybrid calculation method","authors":"T. Preisner, W. Mathis","doi":"10.1109/URSI-EMTS.2010.5637343","DOIUrl":"https://doi.org/10.1109/URSI-EMTS.2010.5637343","url":null,"abstract":"A magnetomechanical configuration consisting of two magnetized spheres is considered. Several conventional used force calculation methods are compared to each other with respect to the force distribution. Furthermore, the impact on the mechanical behavior due to strongly differing force distributions is numerically investigated.","PeriodicalId":404116,"journal":{"name":"2010 URSI International Symposium on Electromagnetic Theory","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114898277","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
Fast direct solution of the combined field integral equation 联合场积分方程的快速直接解
2010 URSI International Symposium on Electromagnetic Theory Pub Date : 2010-11-15 DOI: 10.1109/URSI-EMTS.2010.5637189
A. Heldring, J. Tamayo, J. Rius
{"title":"Fast direct solution of the combined field integral equation","authors":"A. Heldring, J. Tamayo, J. Rius","doi":"10.1109/URSI-EMTS.2010.5637189","DOIUrl":"https://doi.org/10.1109/URSI-EMTS.2010.5637189","url":null,"abstract":"The Method of Moments for electromagnetic scattering and radiation problems is often used in conjunction with the EFIE because the EFIE allows the analysis of open surfaces. For electrically large closed surfaces, the CFIE is often much more efficient because it yields a well conditioned impedance matrix. This is particularly important when an iterative solution method is used. This paper compares the EFIE and the CFIE for a novel fast direct (non-iterative) solution method, the Multiscale Compressed Block Decomposition method.","PeriodicalId":404116,"journal":{"name":"2010 URSI International Symposium on Electromagnetic Theory","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127544545","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
On the classification of electromagnetic media 论电磁介质的分类
2010 URSI International Symposium on Electromagnetic Theory Pub Date : 2010-11-15 DOI: 10.1109/URSI-EMTS.2010.5637259
I. Lindell
{"title":"On the classification of electromagnetic media","authors":"I. Lindell","doi":"10.1109/URSI-EMTS.2010.5637259","DOIUrl":"https://doi.org/10.1109/URSI-EMTS.2010.5637259","url":null,"abstract":"This paper reviews a topic of collaboration between the present author and professor F. Olyslager1 of the 1990's concerning the generalization of classes of electromagnetic media in which fields can be naturally decomposed in two noninteracting components. As a continuation to this research it is shown that the medium classes, originally defined in terms of three-dimensional Gibbsian dyadic algebra, can be introduced in a compact manner by applying four-dimensional multivector dyadic formalism. It is also shown that these classes are closed in the affine transformation.","PeriodicalId":404116,"journal":{"name":"2010 URSI International Symposium on Electromagnetic Theory","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125927770","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
Slot resonances in axially-symmetrical radiators of pulsed and monochromatic TM0n - waves 脉冲和单色TM0n波轴对称辐射体中的槽谐振
2010 URSI International Symposium on Electromagnetic Theory Pub Date : 2010-11-15 DOI: 10.1109/URSI-EMTS.2010.5637017
K. Sirenko
{"title":"Slot resonances in axially-symmetrical radiators of pulsed and monochromatic TM0n - waves","authors":"K. Sirenko","doi":"10.1109/URSI-EMTS.2010.5637017","DOIUrl":"https://doi.org/10.1109/URSI-EMTS.2010.5637017","url":null,"abstract":"Slot resonances on TEM -waves in narrow radial and circular coaxial waveguides have been studied. These resonances allow us to change significantly and to control efficiently the electrodynamic characteristics of axially-symmetrical radiators of pulsed and monochromatic TM0n - waves.","PeriodicalId":404116,"journal":{"name":"2010 URSI International Symposium on Electromagnetic Theory","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126131378","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
DOA Estimation using Matrix Pencil and ESPRIT methods using single and multiple snapshots 使用矩阵铅笔和ESPRIT方法使用单个和多个快照的DOA估计
2010 URSI International Symposium on Electromagnetic Theory Pub Date : 2010-11-15 DOI: 10.1109/URSI-EMTS.2010.5637087
N. Yilmazer, T. Sarkar, M. Salazar-Palma
{"title":"DOA Estimation using Matrix Pencil and ESPRIT methods using single and multiple snapshots","authors":"N. Yilmazer, T. Sarkar, M. Salazar-Palma","doi":"10.1109/URSI-EMTS.2010.5637087","DOIUrl":"https://doi.org/10.1109/URSI-EMTS.2010.5637087","url":null,"abstract":"In this presentation, we compare the performance of the Matrix Pencil (MP) and ESPRIT (Estimation of Signal Parameters using Rotational In-variance Technique) methods for direction of arrival estimation using single and multiple snapshots. The Matrix Pencil method is a technique that directly deals with the data to estimate the poles corresponding to the directions of arrival, and works well under a correlated signal case. This is in contrast to ESPRIT, a statistical subspace based estimation technique, which will work for the correlated case after applying some additional spatial smoothing techniques to the covariance matrix of the data. Simulation results are provided to compare the performance between these two methods. The results clearly demonstrates that when a small number of snapshots, including a single one, is available to process the data, the MP method always performs better than the ESPRIT method.","PeriodicalId":404116,"journal":{"name":"2010 URSI International Symposium on Electromagnetic Theory","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126041522","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: 18
Metamaterial-based microstrip antenna with ground slots for gain-enhanced dual-band operations 用于增益增强双频操作的带地槽的超材料微带天线
2010 URSI International Symposium on Electromagnetic Theory Pub Date : 2010-11-15 DOI: 10.1109/URSI-EMTS.2010.5637356
S. Pyo, Min-Jae Lee, Young-Sik Kim
{"title":"Metamaterial-based microstrip antenna with ground slots for gain-enhanced dual-band operations","authors":"S. Pyo, Min-Jae Lee, Young-Sik Kim","doi":"10.1109/URSI-EMTS.2010.5637356","DOIUrl":"https://doi.org/10.1109/URSI-EMTS.2010.5637356","url":null,"abstract":"In this paper, a novel design of the metamaterial-based microstrip antenna with the ground slots is proposed for gain-enhanced dual-band operation. To realize the dual-band operation of the left-handed and the zeroth-order resonant mode, six equilateral triangular patches which are consists of the coupling gap and the through-hole via are isotropically arranged and the feeding structure is wired to one patch. The equilateral triangular ground slots are embedded for the gain improvements of the proposed antenna at each resonant mode. By only increasing the slot size ranged from 0 mm to 11 mm without changing the radiator elements, the antenna gains have been excellently increased at each operating mode. The measured gains of the proposed antenna are improved by up to 11.69 dB in the left-handed and 11.18 dB in zeroth-order resonant modes at the slot size of 11 mm, respectively in good agreements with the simulated results.","PeriodicalId":404116,"journal":{"name":"2010 URSI International Symposium on Electromagnetic Theory","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123601400","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
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