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2016 URSI International Symposium on Electromagnetic Theory (EMTS)最新文献

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Mantle cloaks for elliptical cylinders excited by an electric line source 由电力线源激发的椭圆圆柱体的斗篷
2016 URSI International Symposium on Electromagnetic Theory (EMTS) Pub Date : 2016-09-22 DOI: 10.1109/URSI-EMTS.2016.7571349
Piotr M. Kamiński, A. Yakovlev, S. Arslanagić
{"title":"Mantle cloaks for elliptical cylinders excited by an electric line source","authors":"Piotr M. Kamiński, A. Yakovlev, S. Arslanagić","doi":"10.1109/URSI-EMTS.2016.7571349","DOIUrl":"https://doi.org/10.1109/URSI-EMTS.2016.7571349","url":null,"abstract":"We investigate the ability of surface impedance mantle cloaks for cloaking of elliptical cylinders excited by an electric line source. The exact analytical solution of the problem utilizing Mathieu functions is obtained and is used to derive optimal surface impedances to cloak a number of configurations. Specifically, theoretical designs are presented which can minimize the scattering from line source excited dielectric elliptical cylinders, as well as conducting strips immersed in such structures. It will be shown that the required surface impedances are angle-dependent; that their performance has limitations with respect to the source and observation point locations.","PeriodicalId":400853,"journal":{"name":"2016 URSI International Symposium on Electromagnetic Theory (EMTS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114143261","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
Inhomogeneous wave penetration in lossy media 非均匀波在有耗介质中的穿透
2016 URSI International Symposium on Electromagnetic Theory (EMTS) Pub Date : 2016-09-22 DOI: 10.1109/URSI-EMTS.2016.7571523
P. Baccarelli, F. Frezza, P. Simeoni, N. Tedeschi
{"title":"Inhomogeneous wave penetration in lossy media","authors":"P. Baccarelli, F. Frezza, P. Simeoni, N. Tedeschi","doi":"10.1109/URSI-EMTS.2016.7571523","DOIUrl":"https://doi.org/10.1109/URSI-EMTS.2016.7571523","url":null,"abstract":"The penetration properties of inhomogeneous waves are illustrated. A theoretical approach is presented and a leaky-wave antenna design is proposed in order to verify the theoretical implications. Practical aspects related to the excitation of leaky waves able to give rise to deep penetration effects in lossy media are discussed and the possible implementation issues are commented.","PeriodicalId":400853,"journal":{"name":"2016 URSI International Symposium on Electromagnetic Theory (EMTS)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129331335","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
Uncertainty quantification of propagation in evaporation ducting 蒸发管道中传播的不确定度量化
2016 URSI International Symposium on Electromagnetic Theory (EMTS) Pub Date : 2016-09-22 DOI: 10.1109/URSI-EMTS.2016.7571522
M. Enstedt, N. Wellander
{"title":"Uncertainty quantification of propagation in evaporation ducting","authors":"M. Enstedt, N. Wellander","doi":"10.1109/URSI-EMTS.2016.7571522","DOIUrl":"https://doi.org/10.1109/URSI-EMTS.2016.7571522","url":null,"abstract":"The Fourier split-step method is used for solving parabolic equations in, for example, computational electromagnetics. In this paper we develop a spectral based Fourier split-step method that will take a limited degree of information with regard to the refractive index of the atmosphere into account.","PeriodicalId":400853,"journal":{"name":"2016 URSI International Symposium on Electromagnetic Theory (EMTS)","volume":"558 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123310243","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
Wiener-Hopf analysis of the diffraction by a thin material strip 薄材料条衍射的Wiener-Hopf分析
2016 URSI International Symposium on Electromagnetic Theory (EMTS) Pub Date : 2016-09-22 DOI: 10.1109/URSI-EMTS.2016.7571453
T. Nagasaka, Kazuya Kobayashi
{"title":"Wiener-Hopf analysis of the diffraction by a thin material strip","authors":"T. Nagasaka, Kazuya Kobayashi","doi":"10.1109/URSI-EMTS.2016.7571453","DOIUrl":"https://doi.org/10.1109/URSI-EMTS.2016.7571453","url":null,"abstract":"The plane wave diffraction by a thin material strip is analyzed using the Wiener-Hopf technique and approximate boundary conditions. An asymptotic solution is obtained under the condition that the strip width is large compared with the wavelength. Applying the saddle point method, the scattered far field is evaluated asymptotically. Numerical results on the radar cross section (RCS) are presented.","PeriodicalId":400853,"journal":{"name":"2016 URSI International Symposium on Electromagnetic Theory (EMTS)","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116177925","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 uniform geometrical theory of diffraction for the scattering from quasi periodic finite planar arrays excited by a nearby antenna 准周期有限平面阵列在附近天线激发下散射的均匀几何衍射理论
2016 URSI International Symposium on Electromagnetic Theory (EMTS) Pub Date : 2016-09-22 DOI: 10.1109/URSI-EMTS.2016.7571309
H. Chou, P. Pathak
{"title":"A uniform geometrical theory of diffraction for the scattering from quasi periodic finite planar arrays excited by a nearby antenna","authors":"H. Chou, P. Pathak","doi":"10.1109/URSI-EMTS.2016.7571309","DOIUrl":"https://doi.org/10.1109/URSI-EMTS.2016.7571309","url":null,"abstract":"This paper presents a uniform geometrical theory of diffraction (UTD) for describing the electromagnetic (EM) scattering from finite, quasi periodic, planar arrays illuminated by incident spherical waves. It is applied here to analyze the scattering by a finite frequency selective surface (FSS), and by a finite reflectarray, respectively when they are excited by a nearby antenna. The UTD yields not only a relatively simple solution to these problems, but it also lends physical insights into the scattering mechanisms via Floquet modal rays arising from the interior points, and diffracted rays arising from the truncation boundaries, respectively, of such finite structures. Numerical examples are shown to validate the UTD analysis.","PeriodicalId":400853,"journal":{"name":"2016 URSI International Symposium on Electromagnetic Theory (EMTS)","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124701126","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 preliminary work on the discrimination of magnetic properties by means of TDR data 利用TDR数据判别磁性能的初步研究
2016 URSI International Symposium on Electromagnetic Theory (EMTS) Pub Date : 2016-09-22 DOI: 10.1109/URSI-EMTS.2016.7571508
R. Persico, F. Mangini
{"title":"A preliminary work on the discrimination of magnetic properties by means of TDR data","authors":"R. Persico, F. Mangini","doi":"10.1109/URSI-EMTS.2016.7571508","DOIUrl":"https://doi.org/10.1109/URSI-EMTS.2016.7571508","url":null,"abstract":"In this contribution we deal with the problem of measuring both the dielectric permittivity and the magnetic permeability of a material with a TDR probe. Preliminary simulations based on the only the TEM propagation mode shows that it is possible to identify magnetic properties from measures of reflected field in time domain and measures of reflection coefficient in frequency domain.","PeriodicalId":400853,"journal":{"name":"2016 URSI International Symposium on Electromagnetic Theory (EMTS)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125876070","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
Fast integral equation method for metasurface antennas 超表面天线的快速积分方程法
2016 URSI International Symposium on Electromagnetic Theory (EMTS) Pub Date : 2016-09-22 DOI: 10.1109/URSI-EMTS.2016.7571431
F. Caminita, E. Martini, G. Minatti, S. Maci
{"title":"Fast integral equation method for metasurface antennas","authors":"F. Caminita, E. Martini, G. Minatti, S. Maci","doi":"10.1109/URSI-EMTS.2016.7571431","DOIUrl":"https://doi.org/10.1109/URSI-EMTS.2016.7571431","url":null,"abstract":"In this paper, we describe an efficient method for the full-wave simulation of printed antennas based on metasurfaces whose texturing is realized by means of elliptical patches. The method is based on the fast solution of an integral equation discretized by using the method of moment with only two entire domain basis functions for each elliptical patch. The two-dimensional version of the Fast Multipole method is introduced to accelerate the solution of the linear system derived from the full-wave analysis method. Numerical results are provided to demonstrate the effectiveness of the proposed approach.","PeriodicalId":400853,"journal":{"name":"2016 URSI International Symposium on Electromagnetic Theory (EMTS)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134523535","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
Electromagnetic scattering by an array of parallel metallic half-planes perpendicularly truncated by a metal plane 被金属平面垂直截断的平行金属半平面阵列的电磁散射
2016 URSI International Symposium on Electromagnetic Theory (EMTS) Pub Date : 2016-09-22 DOI: 10.1109/URSI-EMTS.2016.7571314
M. D. Poort, V. Daniele, P. Uslenghi
{"title":"Electromagnetic scattering by an array of parallel metallic half-planes perpendicularly truncated by a metal plane","authors":"M. D. Poort, V. Daniele, P. Uslenghi","doi":"10.1109/URSI-EMTS.2016.7571314","DOIUrl":"https://doi.org/10.1109/URSI-EMTS.2016.7571314","url":null,"abstract":"A metallic structure consisting of an infinite array of parallel and equally spaced half-planes truncated by a plane perpendicular to their edge is considered. The primary field is a plane electromagnetic wave that propagates in an arbitrary direction with arbitrary polarization. The boundary-value problem is solved analytically, in the phasor domain.","PeriodicalId":400853,"journal":{"name":"2016 URSI International Symposium on Electromagnetic Theory (EMTS)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133870176","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
Antenna array de-embedding and reciprocity constraint 天线阵列去嵌入与互易约束
2016 URSI International Symposium on Electromagnetic Theory (EMTS) Pub Date : 2016-09-22 DOI: 10.1109/URSI-EMTS.2016.7571500
G. Samelsohn
{"title":"Antenna array de-embedding and reciprocity constraint","authors":"G. Samelsohn","doi":"10.1109/URSI-EMTS.2016.7571500","DOIUrl":"https://doi.org/10.1109/URSI-EMTS.2016.7571500","url":null,"abstract":"The multistatic response matrix, obtained typically in the microwave imaging experiments, not only reflects the properties of the specific target, but also depends on both the geometry of the Tx/Rx arrays and the radiation patterns of the antenna units. An effective antenna de-embedding algorithm is proposed, which incorporates the reciprocity constraint. The latter is shown to essentially improve the performance of target recovery from undersampled and noisy data.","PeriodicalId":400853,"journal":{"name":"2016 URSI International Symposium on Electromagnetic Theory (EMTS)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131990798","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
Evolutionary algorithms applications for inverse scattering using Gaussian beams 演化算法在高斯光束逆散射中的应用
2016 URSI International Symposium on Electromagnetic Theory (EMTS) Pub Date : 2016-09-22 DOI: 10.1109/URSI-EMTS.2016.7571311
Gadi Lahav, T. Melamed
{"title":"Evolutionary algorithms applications for inverse scattering using Gaussian beams","authors":"Gadi Lahav, T. Melamed","doi":"10.1109/URSI-EMTS.2016.7571311","DOIUrl":"https://doi.org/10.1109/URSI-EMTS.2016.7571311","url":null,"abstract":"In this work we attempt to overcome the two main limitations of the generic inverse scattering problem: the size and the ill-posed nature of the problem. We use a solver that is based on the discrete Gaussian beam summation method and apply it for the special case of a smoothly varying inhomogeneous medium. In order to overcome the need to perform simplifying approximations for the propagating medium, we use evolutionary algorithms for the optimization scheme. Reconstruction results for several configurations are presented.","PeriodicalId":400853,"journal":{"name":"2016 URSI International Symposium on Electromagnetic Theory (EMTS)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117024912","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
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