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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
Optimized high-order finite-difference time-domain (2, 4) method 优化的高阶时域有限差分(2,4)方法
2015 IEEE International Conference on Computational Electromagnetics Pub Date : 2015-03-05 DOI: 10.1109/COMPEM.2015.7052649
Min Zhu, Lei Zhao, Q. Cao
{"title":"Optimized high-order finite-difference time-domain (2, 4) method","authors":"Min Zhu, Lei Zhao, Q. Cao","doi":"10.1109/COMPEM.2015.7052649","DOIUrl":"https://doi.org/10.1109/COMPEM.2015.7052649","url":null,"abstract":"In order to reduce the dispersion of the conventional HO-FDTD (2, 4) method, the axes-optimized method has been provided. This paper mainly discusses the optimization of the weight parameters based on the numerical dispersion equation. The numerical examples have been given to demonstrate the optimized HO-FDTD (2, 4) method. It has been found that the dispersion error can be eliminated in the axial direction and the optimized method has better dispersion error.","PeriodicalId":6530,"journal":{"name":"2015 IEEE International Conference on Computational Electromagnetics","volume":"16 1","pages":"324-326"},"PeriodicalIF":0.0,"publicationDate":"2015-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83753531","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
Range profile analysis of complex targets based on ray clustering 基于射线聚类的复杂目标距离像分析
2015 IEEE International Conference on Computational Electromagnetics Pub Date : 2015-03-05 DOI: 10.1109/COMPEM.2015.7052605
Yang He, G. Zhu, Siyuan He, Yunhua Zhang
{"title":"Range profile analysis of complex targets based on ray clustering","authors":"Yang He, G. Zhu, Siyuan He, Yunhua Zhang","doi":"10.1109/COMPEM.2015.7052605","DOIUrl":"https://doi.org/10.1109/COMPEM.2015.7052605","url":null,"abstract":"This work presents a new technique based on ray tracing to extract and analyze scattering centers from complex targets, which is called ray clustering. The input of this method is the target CAD model and the output is the dominant scattering centers. This method can separate the echoes from different components by clustering rays owning the different paths and establish relationship between target components and the scattering source, thus it can provide an effective approach to analyze the target characteristics. After introducing the implementation procedure of the extracting method, we present an example to demonstrate its application in characteristic analysis.","PeriodicalId":6530,"journal":{"name":"2015 IEEE International Conference on Computational Electromagnetics","volume":"154 1","pages":"200-202"},"PeriodicalIF":0.0,"publicationDate":"2015-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83831895","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
Parasitic antenna with interdigital structure for TV broadcast energy harvesting 用于电视广播能量采集的数字间结构寄生天线
2015 IEEE International Conference on Computational Electromagnetics Pub Date : 2015-03-05 DOI: 10.1109/COMPEM.2015.7052576
M. Zhang, Xueguan Liu, Huiping Guo, Xinmi Yang, Danpeng Xie
{"title":"Parasitic antenna with interdigital structure for TV broadcast energy harvesting","authors":"M. Zhang, Xueguan Liu, Huiping Guo, Xinmi Yang, Danpeng Xie","doi":"10.1109/COMPEM.2015.7052576","DOIUrl":"https://doi.org/10.1109/COMPEM.2015.7052576","url":null,"abstract":"This paper presents a novel parasitic antenna for RF energy harvesting. The antenna consists of a planar driven dipole and a planar parasitic dipole which are printed on the bottom and top surfaces of a substrate, respectively. For each dipole, meander lines are used for size reduction and transferring the RF power. Moreover, by loading these two dipoles with interdigital structures, the antenna impedance and the radiation directivity can be tuned. A slot-modified reflector is also applied for the purpose of unifying the current direction and improving the radiation directivity and efficiency. The measured -10dB bandwidth is from 508 to 521MHz and the simulated peak gain is 3.26dBi at 515MHz. A rectifier based on HSMS2862 diode is presented. The proposed antenna is employed by the rectifier the received dc voltage is up to 536 mV. The proposed antenna has advantages such as high efficiency, high directivity and electrically small structure, which is suitable for energy harvesting in TV broadcast bands.","PeriodicalId":6530,"journal":{"name":"2015 IEEE International Conference on Computational Electromagnetics","volume":"1 1","pages":"118-120"},"PeriodicalIF":0.0,"publicationDate":"2015-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79542820","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
Compact 2D stencils for inhomogeneous Helmholtz equation based on method of connected local fields 基于连通局部场法的非齐次亥姆霍兹方程二维紧凑模板
2015 IEEE International Conference on Computational Electromagnetics Pub Date : 2015-03-05 DOI: 10.1109/COMPEM.2015.7052610
Hung-Wen Chang, Sin-Yuan Mu
{"title":"Compact 2D stencils for inhomogeneous Helmholtz equation based on method of connected local fields","authors":"Hung-Wen Chang, Sin-Yuan Mu","doi":"10.1109/COMPEM.2015.7052610","DOIUrl":"https://doi.org/10.1109/COMPEM.2015.7052610","url":null,"abstract":"We extend the numerical theory of the method of connected local fields (CLFs) for obtaining semi-analytical solutions of Helmholtz equation with dielectric discontinuities. Using two sets of local plane waves we match the tangential fields along the dielectric interface. We are able to obtain 2D compact FD-like stencil for CLF cell with a straight interface. The results are then compared with other high-accuracy frequency-domain finite-difference (FD-FD) methods with ours. At five points per wavelength spatial sampling, compact CLF-LPW derived coefficients achieve less than .01% relative local error near a planar interface subjecting to an arbitrary incident plane wave.","PeriodicalId":6530,"journal":{"name":"2015 IEEE International Conference on Computational Electromagnetics","volume":"1 1","pages":"215-217"},"PeriodicalIF":0.0,"publicationDate":"2015-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80769357","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
Fast analysis of EM scattering by joint use of the MLFMA and the FGG-FG-FFT 利用MLFMA和fg - fg - fft联合快速分析电磁散射
2015 IEEE International Conference on Computational Electromagnetics Pub Date : 2015-03-05 DOI: 10.1109/COMPEM.2015.7052625
W. Kong, Houxing Zhou, Shu-Wen Chen, W. Hong
{"title":"Fast analysis of EM scattering by joint use of the MLFMA and the FGG-FG-FFT","authors":"W. Kong, Houxing Zhou, Shu-Wen Chen, W. Hong","doi":"10.1109/COMPEM.2015.7052625","DOIUrl":"https://doi.org/10.1109/COMPEM.2015.7052625","url":null,"abstract":"In this paper, a hybrid algorithm of the MLFMA and the FGG-FG-FFT is proposed for fast analysis of multiscale EM scattering from electrically large PEC objects. For multiscale problems, both the MLFMA and the FGG-FG-FFT have their own disadvantages. However, the hybrid algorithm can more easily deal with multiscale problems, leading to higher efficiency than either of these two algorithms. Numerical examples are provided to demonstrate the validity and efficiency of the proposed method.","PeriodicalId":6530,"journal":{"name":"2015 IEEE International Conference on Computational Electromagnetics","volume":"55 1","pages":"256-257"},"PeriodicalIF":0.0,"publicationDate":"2015-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83861483","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
Transient non-conformal domain decomposition using the Laguerre-FDTD method 利用Laguerre-FDTD方法进行瞬态非共形区域分解
2015 IEEE International Conference on Computational Electromagnetics Pub Date : 2015-03-05 DOI: 10.1109/COMPEM.2015.7052650
M. Yi, M. Swaminathan
{"title":"Transient non-conformal domain decomposition using the Laguerre-FDTD method","authors":"M. Yi, M. Swaminathan","doi":"10.1109/COMPEM.2015.7052650","DOIUrl":"https://doi.org/10.1109/COMPEM.2015.7052650","url":null,"abstract":"In this paper, a transient non-conformal domain decomposition scheme is proposed based on the unconditionally stable Laguerre-FDTD method. Field continuity at the non-conformal domain interface is ensured by applying a mortar-element-like method. A time-derivative Lagrange multiplier is introduced at the domain interface which physically represents the interface current excitation. Simulation results have been presented to demonstrate the accuracy and efficiency of the proposed scheme.","PeriodicalId":6530,"journal":{"name":"2015 IEEE International Conference on Computational Electromagnetics","volume":"20 1","pages":"327-329"},"PeriodicalIF":0.0,"publicationDate":"2015-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77011959","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
Keynote speaker 2: Combining computational electromagnetics with signal processing algorithms to enhance the performance of imaging devices and antennas 主讲人2:将计算电磁学与信号处理算法相结合，提高成像设备和天线的性能
2015 IEEE International Conference on Computational Electromagnetics Pub Date : 2015-03-05 DOI: 10.1109/COMPEM.2015.7052534
R. Mittra
{"title":"Keynote speaker 2: Combining computational electromagnetics with signal processing algorithms to enhance the performance of imaging devices and antennas","authors":"R. Mittra","doi":"10.1109/COMPEM.2015.7052534","DOIUrl":"https://doi.org/10.1109/COMPEM.2015.7052534","url":null,"abstract":"Computational Electromagnetics (CEM) has made great strides over the years and has enabled us to solve very large and complex problems that were well beyond our reach only a few year ago. This has been made possible because of steady increases in computing speeds - thanks to Moor's Law - and the advent of parallelization as well as development of iterative and domain decomposition techniques. The quest as well as progress toward the solution of very large and complex problems remain unabated - CEM problems involving \"billions and billions\" of unknowns are being routinely solved today - and this trend is likely to continue for a long time to come. The focus of this presentation is not on proposing yet another algorithm which would help us solve even larger problems than we can handle today, but on discussing alternate ways by which we can enhance the performance of microwave devices - such as imaging systems and lenses - by combining signal processing algorithms with CEM. The paper will discuss several examples of performance enhancement including sub-wavelength imaging of objects that are not located in the near fields of lenses, and improving the accuracy of direction finding antenna systems with size constraints that limit their limitation if conventional DF techniques are used. Our strategy is to first use available CEM techniques to solve the forward problems efficiently and then to use these solutions in Signal Processing algorithms for the purpose of performance enhancement of microwave devices of the type mentioned above.","PeriodicalId":6530,"journal":{"name":"2015 IEEE International Conference on Computational Electromagnetics","volume":"5 1","pages":"3-4"},"PeriodicalIF":0.0,"publicationDate":"2015-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78926197","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
Modeling and design of wireless data telemetry and power transfer for biomedical implants 生物医学植入物无线数据遥测和电力传输的建模和设计
2015 IEEE International Conference on Computational Electromagnetics Pub Date : 2015-03-05 DOI: 10.1109/COMPEM.2015.7052557
K. Agarwal, R. Jegadeesan, Yong-xin Guo, N. Thakor
{"title":"Modeling and design of wireless data telemetry and power transfer for biomedical implants","authors":"K. Agarwal, R. Jegadeesan, Yong-xin Guo, N. Thakor","doi":"10.1109/COMPEM.2015.7052557","DOIUrl":"https://doi.org/10.1109/COMPEM.2015.7052557","url":null,"abstract":"This paper briefly discusses the modeling and design processes of various implantable miniaturized antennas and coils proposed by our research group for wireless data telemetry and power transfer for implants. Methods to overcome practical design issues in implants are proposed whilst adhering to the standard safety regulations.","PeriodicalId":6530,"journal":{"name":"2015 IEEE International Conference on Computational Electromagnetics","volume":"15 1","pages":"64-66"},"PeriodicalIF":0.0,"publicationDate":"2015-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88010624","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
A domain decomposition framework for the solution of multi-scale problems using integral equation formulations 用积分方程公式求解多尺度问题的域分解框架
2015 IEEE International Conference on Computational Electromagnetics Pub Date : 2015-03-05 DOI: 10.1109/COMPEM.2015.7052640
M. A. E. Bautista, F. Vipiana, M. Francavilla, G. Vecchi
{"title":"A domain decomposition framework for the solution of multi-scale problems using integral equation formulations","authors":"M. A. E. Bautista, F. Vipiana, M. Francavilla, G. Vecchi","doi":"10.1109/COMPEM.2015.7052640","DOIUrl":"https://doi.org/10.1109/COMPEM.2015.7052640","url":null,"abstract":"A general framework for the analysis of perfect electric conductor structures is presented; the proposed strategy is based in the decomposition of single structure into non-connected domains, whose individual analysis are used as preconditioner, obtaining good convergence properties for the iterative solution of the entire structure. Transmission conditions between the sub-domains are imposed using discontinuous Galerkin, and then are enhanced by enlarging the sub-domains information.","PeriodicalId":6530,"journal":{"name":"2015 IEEE International Conference on Computational Electromagnetics","volume":"1 1","pages":"297-299"},"PeriodicalIF":0.0,"publicationDate":"2015-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89813101","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
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