{"title":"Nonlinear coupled TE-TM waves in Goubau line","authors":"E. Smolkin, Y. Shestopalov","doi":"10.1109/ICEAA.2016.7731397","DOIUrl":"https://doi.org/10.1109/ICEAA.2016.7731397","url":null,"abstract":"Nonlinear coupled electromagnetic TE-TM wave propagation in the Goubau line (a conducting cylinder covered by a concentric dielectric layer) filled with nonlinear inhomogeneous medium is considered. Nonlinearity inside the GL is described by the Kerr law. The physical problem is reduced to a nonlinear two-parameter eigenvalue problem for a system of (nonlinear) ordinary differential equations. For the numerical solution, a method based on solving an auxiliary Cauchy problem (the shooting method) is proposed. The coupled TE-TM waves propagating in GL are determined numerically. Whether these mathematically predicted propagation regime really exist is a hypothesis that can be proved or disproved in an experiment.","PeriodicalId":434972,"journal":{"name":"2016 International Conference on Electromagnetics in Advanced Applications (ICEAA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129290517","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}
{"title":"On the born approximation for differential microwave imaging using volume integral equation formulation","authors":"M. Bjelogrlic, B. Fuchs, J. Mosig, M. Mattes","doi":"10.1109/ICEAA.2016.7731435","DOIUrl":"https://doi.org/10.1109/ICEAA.2016.7731435","url":null,"abstract":"The Degree of Non-Linearity (DNL) of scattering problems and specifically of differential Microwave Imaging (dMWI) problems is addressed in this paper. The quantification of the DNL amounts to evaluate the validity range of the Born first order (linear) approximation. It is therefore a way to assess the difficulty of both forward and inverse scattering problems arising in Microwave Imaging. Several examples of 3D dMWI with various DNLs are considered to illustrate the interest of the proposed derivation.","PeriodicalId":434972,"journal":{"name":"2016 International Conference on Electromagnetics in Advanced Applications (ICEAA)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126306689","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}
{"title":"Analysis and design of metasurfaces for wave manipulation using the multilevel green's function interpolation method","authors":"P. Zhao, D. Liu, C. Chan","doi":"10.1109/ICEAA.2016.7731459","DOIUrl":"https://doi.org/10.1109/ICEAA.2016.7731459","url":null,"abstract":"This paper presents the use of multilevel Green's function interpolation method (MLGFIM) for the analysis of design of metasurfaces for wave manipulation. MLGFIM allows fast matrix-vector multiplication in an iterative solution to large-scale problems. Due to the planar nature of typical metasurfaces, this multiplication can be further speed up by using fast Fourier transform technique (FFT). The convergence of the iterative solution is enhanced using the sparse approximate inverse (SAI) preconditioner tailored for MLGFIM.","PeriodicalId":434972,"journal":{"name":"2016 International Conference on Electromagnetics in Advanced Applications (ICEAA)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116987052","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}
{"title":"Stepped FM high range-resolution sensor with MUSIC","authors":"K. Ogawa, A. Kajiwara","doi":"10.1109/ICEAA.2016.7731501","DOIUrl":"https://doi.org/10.1109/ICEAA.2016.7731501","url":null,"abstract":"Automotive UWB radar has recently attracted significant attention which increases the driver's safety and convenience. Therefore, multiple close objects and pedestrians on the road are required to be separated and recognized. The range resolution depends on the bandwidth available, thus it is a challenging issue to improve the resolution for a given bandwidth. In this paper, a stepped-FM UWB radar with Multiple Signal Classification processing (MUSIC) is suggested in order to improve the range-resolution for a given bandwidth. It should be therefore able to separate multiple close targets.","PeriodicalId":434972,"journal":{"name":"2016 International Conference on Electromagnetics in Advanced Applications (ICEAA)","volume":"171 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121285872","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}
{"title":"A multi-solver framework for electromagnetic analysis","authors":"Jian Guan, Su Yan, Jianming Jin","doi":"10.1109/ICEAA.2016.7731390","DOIUrl":"https://doi.org/10.1109/ICEAA.2016.7731390","url":null,"abstract":"A multi-solver framework based on Robin transmission conditions is presented for solving scattering from complex objects. According to the material and geometry property, the entire computational domain consisting of the object and its background is decomposed into multiple subdomains. The inhomogeneous subdomains are modeled by the finite element method and the homogeneous subdomains with impedance and conducting boundaries are modeled by the method of moments. To construct a global system, the Robin transmission condition is used to couple adjacent subdomains. The preconditioner based on an absorbing boundary condition and the multilevel fast multipole algorithm are employed in the iterative solution. Numerical examples show the accuracy and the flexibility of the proposed method.","PeriodicalId":434972,"journal":{"name":"2016 International Conference on Electromagnetics in Advanced Applications (ICEAA)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115600679","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}
{"title":"A multilevel green function interpolation method to efficiently construct the EFIE MoM-matrix for 2D-periodic PEC structures in 3D space","authors":"P. Joma, V. Lancellotti, M. V. van Beurden","doi":"10.1109/ICEAA.2016.7731457","DOIUrl":"https://doi.org/10.1109/ICEAA.2016.7731457","url":null,"abstract":"For scattering by perfectly conducting objects in a two-dimensionally periodic setup we employ a surface-integral equation, the Ewald representation of the Green function, and the Method of Moments (MoM). For moderate-size matrices, we observe that the computation time is dominated by the computation of the matrix elements. By employing a multi-level decomposition of the Green function based on Lagrange interpolation on a Chebyshev grid, we demonstrate that the overall computation time can be reduced by 73% compared to the original MoM computation.","PeriodicalId":434972,"journal":{"name":"2016 International Conference on Electromagnetics in Advanced Applications (ICEAA)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115382385","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}
{"title":"Snap-on buttons as detachable shorting vias for wearable textile antennas","authors":"S. J. Chen, D. Ranasinghe, C. Fumeaux","doi":"10.1109/ICEAA.2016.7731445","DOIUrl":"https://doi.org/10.1109/ICEAA.2016.7731445","url":null,"abstract":"This paper demonstrates that commercial snap-on buttons can be utilized as detachable shorting vias for wearable textile antennas. As a consequence, modularity in antenna characteristics can be obtained based on a common initial design. As an illustration, a patch antenna with different configurations of shorting vias is designed and experimentally characterized. In this design, adapted from a recently reported modular snap-on-button-based wearable antenna, four sets of two back-to-back male snap-on buttons affixed within a two-layered substrate are used as detachable patch holders and/or modular shorting vias to the ground plane. By engaging selected male buttons from the ground plane with female buttons to form shorting vias, various antenna patterns can be selected.","PeriodicalId":434972,"journal":{"name":"2016 International Conference on Electromagnetics in Advanced Applications (ICEAA)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128728397","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}
Bai-gen Cai, Chen Bin, Shangguan Wei, Wang Jian, Liu Jiang, Debiao Lu, Jiang Wei
{"title":"Real-time reliability evaluation method for train-ground communication subsystem based on dynamic Bayesian networks","authors":"Bai-gen Cai, Chen Bin, Shangguan Wei, Wang Jian, Liu Jiang, Debiao Lu, Jiang Wei","doi":"10.1109/ICEAA.2016.7731453","DOIUrl":"https://doi.org/10.1109/ICEAA.2016.7731453","url":null,"abstract":"Train-ground communication subsystem is a key subsystem in high-speed train control system and plays an important role during the operation of high-speed train. So the reliability of train-ground communication subsystem should be studied in depth. The dynamic fault tree model for train-ground communication subsystem that is modeled based on the structure chart of the subsystem is transformed to Dynamic Bayesian networks. After this, probability of the top event can be obtained by inference algorithm of Bayesian network, and the probability of sub-equipment's failure under the premise of system's failure will be obtained through reverse inference algorithm, which can provide reference information for fault location. The simulations reveal that the reliability of train-ground communication subsystem at any time can be obtained by Dynamic Bayesian Networks method, so we can perform real-time reliability evaluation on train-ground communication subsystem.","PeriodicalId":434972,"journal":{"name":"2016 International Conference on Electromagnetics in Advanced Applications (ICEAA)","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116945154","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}
A. Mohan, Anantasri Boddupalli, Md. Delwar Hossain, F. Gozasht, Steve S. H. Ling
{"title":"Techniques for RF localization of wireless capsule endoscopy","authors":"A. Mohan, Anantasri Boddupalli, Md. Delwar Hossain, F. Gozasht, Steve S. H. Ling","doi":"10.1109/ICEAA.2016.7731535","DOIUrl":"https://doi.org/10.1109/ICEAA.2016.7731535","url":null,"abstract":"Location estimation of a wireless capsule endoscope at 400 MHz MICS band is implemented here using both RSSI and TOA-based techniques and their performance investigated. To improve the RSSI-based location estimation, a maximum likelihood (ML) estimation method is employed. For the TOA-based localization, FDTD coupled with continuous wavelet transform (CWT) is used to estimate the time of arrival and localization is performed using multilateration. The performances of the proposed localization algorithms are evaluated using a computational heterogeneous biological tissue phantom in the 402MHz-405MHz MICS band. Our investigations reveal that the accuracy obtained by TOA based method is superior to RSSI based estimates. It has been observed that the ML method substantially improves the accuracy of the RSSI-based location estimation.","PeriodicalId":434972,"journal":{"name":"2016 International Conference on Electromagnetics in Advanced Applications (ICEAA)","volume":"240 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121629919","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}
{"title":"UWB in healthcare","authors":"D. Ghosh, P. Sahu","doi":"10.1109/ICEAA.2016.7731489","DOIUrl":"https://doi.org/10.1109/ICEAA.2016.7731489","url":null,"abstract":"The detection and monitoring of human vital signs through remote sensing is a challenging problem. It has applications in medicine, security and in search and rescue. Consequently, there is a growing market for devices and sensors that allow remote monitoring of human health parameters. Many methodologies have been proposed for this purpose, such as radar monitoring, video camera based recording and laser based detection. Among them, impulse radar or ultra-wideband (UWB) based techniques offer several advantages due to its penetration capabilities, low complexity and high accuracy. This article attempts to provide a glimpse into the ever-expanding world of UWB systems used for healthcare.","PeriodicalId":434972,"journal":{"name":"2016 International Conference on Electromagnetics in Advanced Applications (ICEAA)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114145656","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}