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2015 Computational Electromagnetics International Workshop (CEM)最新文献

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Experimental benchmarking of unstructured transmission line modelling (UTLM) method for simulations of explicitly meshed wiring 非结构化传输线建模(UTLM)方法在显式网格布线仿真中的实验基准测试
2015 Computational Electromagnetics International Workshop (CEM) Pub Date : 2015-07-01 DOI: 10.1109/CEM.2015.7237433
Xuesong Meng, P. Sewell, A. Vukovic, Zhewen Zhang, T. Benson
{"title":"Experimental benchmarking of unstructured transmission line modelling (UTLM) method for simulations of explicitly meshed wiring","authors":"Xuesong Meng, P. Sewell, A. Vukovic, Zhewen Zhang, T. Benson","doi":"10.1109/CEM.2015.7237433","DOIUrl":"https://doi.org/10.1109/CEM.2015.7237433","url":null,"abstract":"In this paper, the unstructured transmission line modelling (UTLM) method is applied to solve the canonical wire coupling problem by explicitly meshing wires. The near-end crosstalk of two single-core copper wires above a ground plane is evaluated using both UTLM method and experiment. The results obtained show very good agreement, which validates the viability of direct-wire modelling in the UTLM method.","PeriodicalId":409699,"journal":{"name":"2015 Computational Electromagnetics International Workshop (CEM)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115821095","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
Remedy for inverse scattering problems via space-mapping inverse-difference approach 利用空间映射逆差分法解决逆散射问题
2015 Computational Electromagnetics International Workshop (CEM) Pub Date : 2015-07-01 DOI: 10.1109/CEM.2015.7237442
A. Aydoğan, F. Akleman
{"title":"Remedy for inverse scattering problems via space-mapping inverse-difference approach","authors":"A. Aydoğan, F. Akleman","doi":"10.1109/CEM.2015.7237442","DOIUrl":"https://doi.org/10.1109/CEM.2015.7237442","url":null,"abstract":"An inverse-scattering algorithm (ISA) based on integral-equation formulation is used as an inverse coarse model in the space-mapping inverse-difference (SMID) method and named as ISA-based SMID (ISA-SMID). The enhancement of ISA-SMID optimization over inverse-scattering algorithms is tested. To this aim, extraction of dielectric profile problem is examined with ISA-SMID, which is obtained by the hybridization of SMID and Newton-based inverse-scattering algorithm. The method of moments solution of integral equation is used in the utilized inverse algorithm for the reconstruction of complex permittivity of the inhomogeneous object loaded in the waveguide.","PeriodicalId":409699,"journal":{"name":"2015 Computational Electromagnetics International Workshop (CEM)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126815170","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
Unconditionally stable explicit time-domain methods 无条件稳定显式时域方法
2015 Computational Electromagnetics International Workshop (CEM) Pub Date : 2015-07-01 DOI: 10.1109/CEM.2015.7237436
D. Jiao
{"title":"Unconditionally stable explicit time-domain methods","authors":"D. Jiao","doi":"10.1109/CEM.2015.7237436","DOIUrl":"https://doi.org/10.1109/CEM.2015.7237436","url":null,"abstract":"This paper presents an overview of recent developments on explicit and unconditionally stable time-domain methods.","PeriodicalId":409699,"journal":{"name":"2015 Computational Electromagnetics International Workshop (CEM)","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123216921","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
On the use of a loop-tree decomposition method for the elimination of solenoidal error in time marching 利用环树分解法消除螺线管在时间行军中的误差
2015 Computational Electromagnetics International Workshop (CEM) Pub Date : 2015-07-01 DOI: 10.1109/CEM.2015.7237435
D. Weile
{"title":"On the use of a loop-tree decomposition method for the elimination of solenoidal error in time marching","authors":"D. Weile","doi":"10.1109/CEM.2015.7237435","DOIUrl":"https://doi.org/10.1109/CEM.2015.7237435","url":null,"abstract":"Time-domain integral-equation methods for the simulation of electromagnetic wave scattering have historically been subject to two sources of instability. The first source of instability causes the solution yielded by the process to oscillate wildly, and is caused by spatial integrations that are unable to capture the rapid change in the integrand at shadow boundaries. The second source of instability results in a slow growth of the current on the structure, and is due to the ill-conditioned nature of the electric-field integral equation at low frequencies. In this work, the shadow region instability is eliminated using a convolution quadrature method, and the low-frequency difficulties are improved using a loop-tree decomposition. Numerical results will demonstrate the efficacy of the combination.","PeriodicalId":409699,"journal":{"name":"2015 Computational Electromagnetics International Workshop (CEM)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115078096","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
Analytical regularization method for arbitrary hollow waveguides with spline-parameterized cross sections 具有样条参数化截面的任意空心波导的解析正则化方法
2015 Computational Electromagnetics International Workshop (CEM) Pub Date : 2015-07-01 DOI: 10.1109/CEM.2015.7237440
Turker Topal, Y. Tuchkin, O. Suvorova, F. Dikmen
{"title":"Analytical regularization method for arbitrary hollow waveguides with spline-parameterized cross sections","authors":"Turker Topal, Y. Tuchkin, O. Suvorova, F. Dikmen","doi":"10.1109/CEM.2015.7237440","DOIUrl":"https://doi.org/10.1109/CEM.2015.7237440","url":null,"abstract":"This paper presents a numerically efficient simulation method and its implementation based on spline interpolation technique for solving waveguide problems of arbitrary cross sections. In this work, analytical regularization method is used as the key approach.","PeriodicalId":409699,"journal":{"name":"2015 Computational Electromagnetics International Workshop (CEM)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132168155","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 circularly polarized antenna with electromagnetic bandgap structures 具有电磁带隙结构的圆极化天线
2015 Computational Electromagnetics International Workshop (CEM) Pub Date : 2015-07-01 DOI: 10.1109/CEM.2015.7237414
Alican Uysal, C. Isik
{"title":"A circularly polarized antenna with electromagnetic bandgap structures","authors":"Alican Uysal, C. Isik","doi":"10.1109/CEM.2015.7237414","DOIUrl":"https://doi.org/10.1109/CEM.2015.7237414","url":null,"abstract":"In this paper, we propose a novel method to increase the axial ratio bandwidth of a circularly polarized microstrip patch antenna. Demonstrated method consists of polarization dependent rectangular-shaped mushroom-like electromagnetic bandgap structures positioned around circularly polarized radiator patch. Since the structure itself has a polarization-dependent behavior, it was seen that a secondary minimum point can be introduced in the frequency dependency of axial ratio in main lobe direction. Additionally, increment in maximum gain is achieved as a result of natural characteristics of electromagnetic bandgap structures. Simulations made by HFSS show that axial ratio bandwidth can be increased using polarization-dependent electromagnetic bandgap structures. In this configuration, 3-dB axial ratio bandwidth can be broadened significantly.","PeriodicalId":409699,"journal":{"name":"2015 Computational Electromagnetics International Workshop (CEM)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125054806","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
Versatile facet-oriented discretization of the electric-field integral equation 面向多方面的电场积分方程离散化
2015 Computational Electromagnetics International Workshop (CEM) Pub Date : 2015-07-01 DOI: 10.1109/CEM.2015.7237423
E. Ubeda, I. Sekulić, J. Rius, A. Heldring
{"title":"Versatile facet-oriented discretization of the electric-field integral equation","authors":"E. Ubeda, I. Sekulić, J. Rius, A. Heldring","doi":"10.1109/CEM.2015.7237423","DOIUrl":"https://doi.org/10.1109/CEM.2015.7237423","url":null,"abstract":"Traditional method-of-moment implementations of the electric-field integral equation (EFIE) are based on sets of divergence-conforming basis functions, such as the loworder Rao-Wilton-Glisson (RWG) set, which arise from imposing normal continuity in the expanded current across the edges arising from the triangulation around the boundary surface. These schemes are edge-oriented and become well-suited for the analysis of conformal meshings, where pairs of adjacent triangles share common edges. However, they cannot be applied to nonconformal triangulations, arising from the interconnection of independent meshings, for example in the modular modelling of composite objects, because adjacent triangles may not have common matching edges. In this paper, we present several facetoriented implementations of the EFIE that allow the robust and versatile analysis of such objects. Two schemes arise from testing the fields over a set of tetrahedral or wedge elements attached to the boundary surface, inside the conductor. Another scheme, “tangential-normal”, derives from testing the fields over pairs of adjacent triangles such that one triangle matches a particular facet of the surface meshing and the other one is oriented inwards perpendicularly to the surface triangulation.","PeriodicalId":409699,"journal":{"name":"2015 Computational Electromagnetics International Workshop (CEM)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129795473","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
Direct domain decomposition for on-board spacecraft antennas based on spherical ports 基于球面端口的星载天线直接域分解
2015 Computational Electromagnetics International Workshop (CEM) Pub Date : 2015-07-01 DOI: 10.1109/CEM.2015.7237431
P. Robustillo, J. Rubio, J. Zapata, J. Mosig
{"title":"Direct domain decomposition for on-board spacecraft antennas based on spherical ports","authors":"P. Robustillo, J. Rubio, J. Zapata, J. Mosig","doi":"10.1109/CEM.2015.7237431","DOIUrl":"https://doi.org/10.1109/CEM.2015.7237431","url":null,"abstract":"A direct domain decomposition method based on the finite element method and spherical and hemispherical ports is introduced. This method has been successfully applied to analyze on-board spacecraft antennas, making them possible to be designed taking into account the fuselage.","PeriodicalId":409699,"journal":{"name":"2015 Computational Electromagnetics International Workshop (CEM)","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114609802","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
Engineering photonic Nanojet generation 工程光子纳米射流生成
2015 Computational Electromagnetics International Workshop (CEM) Pub Date : 2015-07-01 DOI: 10.1109/CEM.2015.7237416
I. Mahariq, Neslihan Eti, H. Kurt
{"title":"Engineering photonic Nanojet generation","authors":"I. Mahariq, Neslihan Eti, H. Kurt","doi":"10.1109/CEM.2015.7237416","DOIUrl":"https://doi.org/10.1109/CEM.2015.7237416","url":null,"abstract":"In this work, we study and present the analysis of photonic nanojet with the finite difference-time-domain method and the spectral element method for dielectric micro-cylinders of various shapes and refractive indices.","PeriodicalId":409699,"journal":{"name":"2015 Computational Electromagnetics International Workshop (CEM)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114729950","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
Comparative benchmarking: matrix multiplication on a multicore coprocessor and a GPU 比较基准测试:多核协处理器和GPU上的矩阵乘法
2015 Computational Electromagnetics International Workshop (CEM) Pub Date : 2015-07-01 DOI: 10.1109/CEM.2015.7237429
Md. Salim, Ali O. Akkirman, Mert Hidayetoglu, L. Gurel
{"title":"Comparative benchmarking: matrix multiplication on a multicore coprocessor and a GPU","authors":"Md. Salim, Ali O. Akkirman, Mert Hidayetoglu, L. Gurel","doi":"10.1109/CEM.2015.7237429","DOIUrl":"https://doi.org/10.1109/CEM.2015.7237429","url":null,"abstract":"This paper reports the performances of an Intel Xeon Phi coprocessor and an Nvidia Tesla GPU for multiplication of large matrices. For this purpose, various libraries, such as Intel MKL and MAGMA, are employed with different execution modes of the coprocessor. We compare the performances of the coprocessor and the GPU in terms of running time, memory requirement, and programming difficulty for the special case of matrix-matrix multiplication.","PeriodicalId":409699,"journal":{"name":"2015 Computational Electromagnetics International Workshop (CEM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126791183","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: 11
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