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2015 IEEE International Conference on Computational Electromagnetics最新文献

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2GHz near-field in-head path-loss model for stroke detection 用于脑卒中检测的2GHz近场头部路径损耗模型
2015 IEEE International Conference on Computational Electromagnetics Pub Date : 2015-03-05 DOI: 10.1109/COMPEM.2015.7052558
Hong-li Peng, Zheng Tang, Bai-qing Zong
{"title":"2GHz near-field in-head path-loss model for stroke detection","authors":"Hong-li Peng, Zheng Tang, Bai-qing Zong","doi":"10.1109/COMPEM.2015.7052558","DOIUrl":"https://doi.org/10.1109/COMPEM.2015.7052558","url":null,"abstract":"A realistic 2GHz human in-head near-field path-loss (NF-PL) modeling approach is presented in this paper. Due to the facts that the EM near-field interactions and in-head NF-PL characteristic are fully reflected in the simulation system, which consists of a verified UWB antenna and a well-known head-phantom, the NF-PL parameters can then be extracted in terms of this rigorous simulated results. The results will provide an invaluable insight into signal's transmission in head as well as be used for head stroke detection.","PeriodicalId":6530,"journal":{"name":"2015 IEEE International Conference on Computational Electromagnetics","volume":"19 1","pages":"67-69"},"PeriodicalIF":0.0,"publicationDate":"2015-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84389693","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
Hierarchical and singular bases for finite methods 有限方法的层次基和奇异基
2015 IEEE International Conference on Computational Electromagnetics Pub Date : 2015-03-05 DOI: 10.1109/COMPEM.2015.7052543
R. Graglia, A. Peterson, P. Petrini, L. Matekovits
{"title":"Hierarchical and singular bases for finite methods","authors":"R. Graglia, A. Peterson, P. Petrini, L. Matekovits","doi":"10.1109/COMPEM.2015.7052543","DOIUrl":"https://doi.org/10.1109/COMPEM.2015.7052543","url":null,"abstract":"Hierarchical basis function families that incorporate singular behavior to model fields with corner singularities are reviewed. These families are of the additive kind, and combine a traditional polynomial-complete representation with additional singular terms that incorporate general exponents that may be adjusted for the specific wedge angle of interest. A few results are reported to validate the benefits of using such bases when dealing with two-dimensional structures with corners meshed with triangular cells.","PeriodicalId":6530,"journal":{"name":"2015 IEEE International Conference on Computational Electromagnetics","volume":"25 1","pages":"26-29"},"PeriodicalIF":0.0,"publicationDate":"2015-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81727821","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
Tunability analysis of a miniaturized patch antenna with self-biased magnetic film 自偏磁膜小型化贴片天线的可调性分析
2015 IEEE International Conference on Computational Electromagnetics Pub Date : 2015-03-05 DOI: 10.1109/COMPEM.2015.7052593
X. Zhang, J. Shi, J. Zhang, M. Tong
{"title":"Tunability analysis of a miniaturized patch antenna with self-biased magnetic film","authors":"X. Zhang, J. Shi, J. Zhang, M. Tong","doi":"10.1109/COMPEM.2015.7052593","DOIUrl":"https://doi.org/10.1109/COMPEM.2015.7052593","url":null,"abstract":"Tunability analysis based on electromagnetic modeling and simulation is performed for a miniaturized patch antenna loaded with self-biased magnetic films. The antenna includes a lossy dielectric substrate and layered thin-ferrite-film superstrate above microstrip. The structure is of multiscale and multimaterial feature and the system matrix may not be well-conditioned if the problem is described by surface integral equations (SIEs) in the integral equation approach. We use volume-surface integral equations (VSIEs) to formulate the problem and the VSIEs are solved by the method of moments (MoM) with a different implementation scheme. A numerical example is presented to illustrate the approach.","PeriodicalId":6530,"journal":{"name":"2015 IEEE International Conference on Computational Electromagnetics","volume":"144 1","pages":"166-168"},"PeriodicalIF":0.0,"publicationDate":"2015-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80419719","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
Volume integral equation combined with ODDM for analysis of EM scattering from inhomogeneous anisotropie nonmagnetic dielectric objects 体积积分方程结合ODDM分析非均匀各向异性非磁性介质物体的电磁散射
2015 IEEE International Conference on Computational Electromagnetics Pub Date : 2015-03-05 DOI: 10.1109/COMPEM.2015.7052639
Shu-Wen Chen, Houxing Zhou, W. Kong, W. Hong
{"title":"Volume integral equation combined with ODDM for analysis of EM scattering from inhomogeneous anisotropie nonmagnetic dielectric objects","authors":"Shu-Wen Chen, Houxing Zhou, W. Kong, W. Hong","doi":"10.1109/COMPEM.2015.7052639","DOIUrl":"https://doi.org/10.1109/COMPEM.2015.7052639","url":null,"abstract":"In this paper, the volume integral equation (VIE) combined with overlapping domain decomposition method (ODDM) is presented for analysis of electromagnetic (EM) scattering from inhomogeneous anisotropic nonmagnetic dielectric objects. Discretizing a volumetric domain of electrically large size by using tetrahedra usually produces too many unknowns for the traditional VIE-MoM to accommodate. However, the VIE combined with ODDM (VIE-ODDM) can overcome this difficulty. In the VIE-ODDM, at any time, only one subdomain problem needs to be stored in host memory, significantly reducing memory requirement. Numerical results are provided to demonstrate the validity and efficiency of the proposed method.","PeriodicalId":6530,"journal":{"name":"2015 IEEE International Conference on Computational Electromagnetics","volume":"1 1","pages":"294-296"},"PeriodicalIF":0.0,"publicationDate":"2015-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90196139","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
Efficient analysis of plasmonic discontinuities 等离子体不连续的有效分析
2015 IEEE International Conference on Computational Electromagnetics Pub Date : 2015-03-05 DOI: 10.1109/COMPEM.2015.7052608
Afaf M. A. Said, Salah S. A. Obayya
{"title":"Efficient analysis of plasmonic discontinuities","authors":"Afaf M. A. Said, Salah S. A. Obayya","doi":"10.1109/COMPEM.2015.7052608","DOIUrl":"https://doi.org/10.1109/COMPEM.2015.7052608","url":null,"abstract":"Blocked Schur finite-element bidirectional beam propagation method (BS-FE-BiBPM) is introduced for high-index contrast plasmonic waveguides with multiple-longitudinal discontinuities. The square root of the characteristic matrix appearing at the discontinuity section is accurately computed using the newly Blocked Schur algorithm which could save, by serial implementation only, about 60% of the execution time comparing with Schur algorithm. The suggested BS-FE-BiBPM overcomes the stability and accuracy problems of the conventional BiBPMs based on the commonly used Padé approximation in dealing with plasmonic devices thanks to a physically treatment of evanescent and surface waves.","PeriodicalId":6530,"journal":{"name":"2015 IEEE International Conference on Computational Electromagnetics","volume":"42 1","pages":"209-211"},"PeriodicalIF":0.0,"publicationDate":"2015-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81534145","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 fast solver for calculating the high frequency scattered field from the Fock current on the surface of the 3-D convex scatterer 利用三维凸散射体表面的Fock电流计算高频散射场的快速求解器
2015 IEEE International Conference on Computational Electromagnetics Pub Date : 2015-03-05 DOI: 10.1109/COMPEM.2015.7052604
Yu Mao Wu, W. Chew, L. J. Jiang
{"title":"The fast solver for calculating the high frequency scattered field from the Fock current on the surface of the 3-D convex scatterer","authors":"Yu Mao Wu, W. Chew, L. J. Jiang","doi":"10.1109/COMPEM.2015.7052604","DOIUrl":"https://doi.org/10.1109/COMPEM.2015.7052604","url":null,"abstract":"In this paper, we first consider the Fock current from the 3-D convex cylinder. Next, on invoking the incremental length diffraction technique (ILDC), the resultant high frequency scattered fields are expressed in terms of the Fock current. We propose the NSDP method to calculate these scattered fields. Numerical examples illustrate that the proposed NSDP method for calculating the high frequency scattered fields could achieve the frequency independent computational workload and error controllable accuracy.","PeriodicalId":6530,"journal":{"name":"2015 IEEE International Conference on Computational Electromagnetics","volume":"41 1","pages":"197-199"},"PeriodicalIF":0.0,"publicationDate":"2015-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74200480","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 fast and efficient method for design of circuit analog absorbers consisting of resistive square loop arrays 一种快速有效的电阻式方形环路阵列电路模拟吸收器设计方法
2015 IEEE International Conference on Computational Electromagnetics Pub Date : 2015-03-05 DOI: 10.1109/COMPEM.2015.7052546
W. Che, Han Ye, Ying Xiong, Y. Chang, C. Christopoulos
{"title":"A fast and efficient method for design of circuit analog absorbers consisting of resistive square loop arrays","authors":"W. Che, Han Ye, Ying Xiong, Y. Chang, C. Christopoulos","doi":"10.1109/COMPEM.2015.7052546","DOIUrl":"https://doi.org/10.1109/COMPEM.2015.7052546","url":null,"abstract":"This paper proposes new precise equivalent circuit models (ECMs) for circuit analog absorbers consisting of resistors-loaded square loop arrays. Furthermore, a genetic algorithm (GA) is employed to optimize the geometrical parameters and the corresponding impedance properties to achieve different design requirements. For demonstration, two absorbers consisting of single and double square loop arrays are designed by using the combined methods of ECM and generic algorithm. The agreement between the simulated and measured reflection coefficients indicates the validity of the presented method.","PeriodicalId":6530,"journal":{"name":"2015 IEEE International Conference on Computational Electromagnetics","volume":"53 57 1","pages":"35-37"},"PeriodicalIF":0.0,"publicationDate":"2015-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76964300","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
A concise and practical domain decomposition method using phase extracted basis functions 一种简洁实用的基于相位提取基函数的区域分解方法
2015 IEEE International Conference on Computational Electromagnetics Pub Date : 2015-03-05 DOI: 10.1109/COMPEM.2015.7052601
Kui Han, Z. Nie
{"title":"A concise and practical domain decomposition method using phase extracted basis functions","authors":"Kui Han, Z. Nie","doi":"10.1109/COMPEM.2015.7052601","DOIUrl":"https://doi.org/10.1109/COMPEM.2015.7052601","url":null,"abstract":"A domain decomposition method (DDM) using phase extracted basis functions with very few overlapped buffer regions is investigated to solve electromagnetic scattering problems of electrically large PEC objects. The concept of \"Non-scattering surface\" is employed in this DDM and combined field integral equation (CFIE) is used in the numerical solution of each subdomain in corresponding local model which can be seen as a closed object. Instead of employing a certain number of basis functions as buffer regions, this method just uses the patches adjacent to artificial boundaries to ensure the normal continuity of the currents across the artificial regional edges. The multilevel fast multipole algorithm (MLFMA) is applied to accelerate the computation of matrix-vector multiplication. Numerical results show that with buffer regions mentioned above, using phase extracted basis functions defined on large patches has better convergence rate than RWG or CRWG basis functions.","PeriodicalId":6530,"journal":{"name":"2015 IEEE International Conference on Computational Electromagnetics","volume":"110 1","pages":"190-191"},"PeriodicalIF":0.0,"publicationDate":"2015-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73953418","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
Single-feed four-arm curl antenna for circularly polarized radiation 圆极化辐射单馈四臂旋度天线
2015 IEEE International Conference on Computational Electromagnetics Pub Date : 2015-03-05 DOI: 10.1109/COMPEM.2015.7052616
S. Ta, I. Park
{"title":"Single-feed four-arm curl antenna for circularly polarized radiation","authors":"S. Ta, I. Park","doi":"10.1109/COMPEM.2015.7052616","DOIUrl":"https://doi.org/10.1109/COMPEM.2015.7052616","url":null,"abstract":"A circularly polarized single-feed four-arm curl antenna is presented in this paper. We demonstrate that a four-arm curl antenna can be fed by a single 50-H source without a matching network and can produce good circularly polarized (CP) radiation at the desired frequency. A curl antenna normally exhibits as a resonant antenna and its input impedance depends on the number of turns, the spacing between its turns, the width of its arm, and the dielectric substrate. In this paper, the CP radiation was obtained via the proper choice of the number of turns, i.e., the turn numbers for the curl arms were chosen such that the real part of their input admittances were equal and the angle of the input admittances differed by 90°.","PeriodicalId":6530,"journal":{"name":"2015 IEEE International Conference on Computational Electromagnetics","volume":"1 1","pages":"232-234"},"PeriodicalIF":0.0,"publicationDate":"2015-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89815071","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
Fast prediction for conducted EMI in flyback converters 反激变换器传导电磁干扰的快速预测
2015 IEEE International Conference on Computational Electromagnetics Pub Date : 2015-03-05 DOI: 10.1109/COMPEM.2015.7052622
Jianwei Liu, Yi Wang, Dan Jiang, Q. Cao
{"title":"Fast prediction for conducted EMI in flyback converters","authors":"Jianwei Liu, Yi Wang, Dan Jiang, Q. Cao","doi":"10.1109/COMPEM.2015.7052622","DOIUrl":"https://doi.org/10.1109/COMPEM.2015.7052622","url":null,"abstract":"The flyback switched mode power supply often fails in electromagnetic compatibility (EMC) because of the easily aroused conducted electromagnetic interference (EMI). However, the measurement of conducted EMI during initial compliance tests requires strict test environments and expensive facilities, this makes the prediction of EMI important. This paper presents a time domain simulation method to predict the conducted EMI of a flyback converter before prototyping. The CST PCB Studio is utilized to extract parasitic parameters of a printed circuit board (PCB) based on 2D field solver and perform total circuit simulation. Experimental results validate that the presented modeling method is efficient and fast to predict EMI.","PeriodicalId":6530,"journal":{"name":"2015 IEEE International Conference on Computational Electromagnetics","volume":"10 1","pages":"247-249"},"PeriodicalIF":0.0,"publicationDate":"2015-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79174009","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
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