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

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Accurate boundary extraction and dielectric constant estimation method for UWB internal imaging radar 超宽带内成像雷达精确边界提取及介电常数估计方法
2016 URSI International Symposium on Electromagnetic Theory (EMTS) Pub Date : 2016-08-01 DOI: 10.1109/URSI-EMTS.2016.7571322
S. Kidera
{"title":"Accurate boundary extraction and dielectric constant estimation method for UWB internal imaging radar","authors":"S. Kidera","doi":"10.1109/URSI-EMTS.2016.7571322","DOIUrl":"https://doi.org/10.1109/URSI-EMTS.2016.7571322","url":null,"abstract":"Microwave ultra-wideband (UWB) radar systems have numerous advantages for high range resolution and an ability to penetrate dielectric objects. Internal imaging of dielectric objects by UWB radar is a promising nondestructive method of testing aging roads and bridges and a noninvasive technique for medical diagnoses or human vital sign detection. We have already developed an original method called as range points migration (RPM), which achieves accurate and high-resolution imaging for target with continuous boundary shape. In this paper, we introduce the novel method for extracting double-layered dielectric object by using RPM or Envelope based approaches, where a dielectric constant of surrounding medium is simultaneously determined. The results obtained from the numerical simulation and experiment assuming concrete objects, demonstrate the effectiveness of our proposed method.","PeriodicalId":400853,"journal":{"name":"2016 URSI International Symposium on Electromagnetic Theory (EMTS)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133838366","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
Algebraic Electromagnetism 代数电磁
2016 URSI International Symposium on Electromagnetic Theory (EMTS) Pub Date : 2016-08-01 DOI: 10.1109/ursi-emts.2016.7571435
Eike Scholz, S. Lange, T. Eibert
{"title":"Algebraic Electromagnetism","authors":"Eike Scholz, S. Lange, T. Eibert","doi":"10.1109/ursi-emts.2016.7571435","DOIUrl":"https://doi.org/10.1109/ursi-emts.2016.7571435","url":null,"abstract":"This paper introduces the concept of Algebraic Electromagnetism to solve the problem of finding stable spatial discretizations of the electromagnetic field for large scale, ultra-wide-band electromagnetic systems, composed of possibly nonlinear subsystems with memory and/or hysteresis effects. It is a thorough approach to exact discrete electromagnetism, given by an algebraic construction of general material operators that have the property that solving Maxwell's equations with these is exactly equivalent to solving a corresponding system of ordinary differential equations.","PeriodicalId":400853,"journal":{"name":"2016 URSI International Symposium on Electromagnetic Theory (EMTS)","volume":"145 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115698572","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
Beam summation theory for waves in fluctuating media. Part II: Stochastic fields 波动介质中波的束和理论。第二部分:随机场
2016 URSI International Symposium on Electromagnetic Theory (EMTS) Pub Date : 2016-08-01 DOI: 10.1109/URSI-EMTS.2016.7571401
M. Leibovich, E. Heyman
{"title":"Beam summation theory for waves in fluctuating media. Part II: Stochastic fields","authors":"M. Leibovich, E. Heyman","doi":"10.1109/URSI-EMTS.2016.7571401","DOIUrl":"https://doi.org/10.1109/URSI-EMTS.2016.7571401","url":null,"abstract":"In Part I of this two-part paper we presented the “propagating beam frame” (PBF) concept, which provides a self-consistent framework for wave tracking through a fluctuating medium. The field is expanded using the BPF and the local scattering of each beam by the medium is re-expanded using the same beam-set and expressed as beam-to-beam (B2B) scattering coefficients. The entire scattering problem is thereby described in terms of the coefficients dynamics in the phase-space. In the present paper, we use the theory of Part I to derive a beam summation (BS) representation for the stochastic-field moments (observables) for cases where the medium fluctuations are expressed as a random process with given statistics. We derive closed form approximations for the stochastic B2B scattering moments, which are expressed in terms of the local spectral statistics of the medium projected on phase-space windows formed by the intersection of the excitation and the scattered beams. Since the medium statistics is typically smooth, unlike its realization, the resulting stochastic beam-to-beam (B2B) scattering matrix is compact and smooth. The stochastic observables are fully described in terms of the local dynamics of the B2B scattering moments as the wave propagates through the medium. It is demonstrated that the formulation computationally efficient and provides a compact representation for the scattering phenomenology.","PeriodicalId":400853,"journal":{"name":"2016 URSI International Symposium on Electromagnetic Theory (EMTS)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116947569","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
Volume potential-integral-equation formulation for electromagnetic scattering by dielectric objects 介质物体电磁散射的体积位势积分方程公式
2016 URSI International Symposium on Electromagnetic Theory (EMTS) Pub Date : 2016-08-01 DOI: 10.1109/URSI-EMTS.2016.7571428
J. Markkanen
{"title":"Volume potential-integral-equation formulation for electromagnetic scattering by dielectric objects","authors":"J. Markkanen","doi":"10.1109/URSI-EMTS.2016.7571428","DOIUrl":"https://doi.org/10.1109/URSI-EMTS.2016.7571428","url":null,"abstract":"A volume potential-integral-equation formulation for electromagnetic scattering by dielectric objects is developed and discretized with fully continuous nodal basis functions. The equations are tested with either the point-matching or Galerkin's testing procedure. Galerkin's testing shows superior accuracy over the point-matching as well as over the standard discretization of the electric field volume integral equation with Schaubert-Wilton-Glisson (SWG) functions. The potential formulation is accelerated by the precorrected-FFT method.","PeriodicalId":400853,"journal":{"name":"2016 URSI International Symposium on Electromagnetic Theory (EMTS)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123629221","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 novel UWB antenna for vehicle-to-infrastructure automotive applications 一种新型超宽带天线，用于车辆到基础设施的汽车应用
2016 URSI International Symposium on Electromagnetic Theory (EMTS) Pub Date : 2016-08-01 DOI: 10.1109/URSI-EMTS.2016.7571504
V. Franchina, A. Michel, P. Nepa, M. Gallo, I. Moro, D. Zamberlan
{"title":"A novel UWB antenna for vehicle-to-infrastructure automotive applications","authors":"V. Franchina, A. Michel, P. Nepa, M. Gallo, I. Moro, D. Zamberlan","doi":"10.1109/URSI-EMTS.2016.7571504","DOIUrl":"https://doi.org/10.1109/URSI-EMTS.2016.7571504","url":null,"abstract":"A novel ultra wideband antenna is here proposed for Vehicle to Infrastructure (V2I) communication systems. Two Vivaldi antennas are arranged in a back-to-back configuration (array of two Vivaldi antennas) to radiate both in front and rear car driving direction. By feeding the antennas with out-of-phase currents, the field radiation in the transversal direction is attenuated, so limiting the multipath effect due to buildings along the road. Since the antenna is mounted on a metallic car roof, its height has been split in half according to the Image Theorem.","PeriodicalId":400853,"journal":{"name":"2016 URSI International Symposium on Electromagnetic Theory (EMTS)","volume":"149 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121956349","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
Improved result for the refractive index of human hemoglobin solutions by Kramers-Kronig relations 用Kramers-Kronig关系改进了人血红蛋白溶液折射率的计算结果
2016 URSI International Symposium on Electromagnetic Theory (EMTS) Pub Date : 2016-08-01 DOI: 10.1109/URSI-EMTS.2016.7571448
J. Gienger, H. Gross, J. Neukammer
{"title":"Improved result for the refractive index of human hemoglobin solutions by Kramers-Kronig relations","authors":"J. Gienger, H. Gross, J. Neukammer","doi":"10.1109/URSI-EMTS.2016.7571448","DOIUrl":"https://doi.org/10.1109/URSI-EMTS.2016.7571448","url":null,"abstract":"Applying Kramers-Kronig relations we compute the real part of the refractive index of aqueous solutions of human hemoglobin from its absorption spectra in the range 250 nm-1100 nm. Since the solution's absorption is not limited to this spectral range, strong ultraviolet (UV) and infrared absorbance of the water have been considered in previous investigations. We improve these results regarding the concentration-dependent absorption of water, the UV absorbance of hemoglobin's peptide-backbone, and by fixing the remaining unknown parameters via a global fit.","PeriodicalId":400853,"journal":{"name":"2016 URSI International Symposium on Electromagnetic Theory (EMTS)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117192628","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
Power effect of polar summer mesosphere dusty plasma on space microwave energy transmission 极地夏季中间层尘埃等离子体对空间微波能量传输的功率效应
2016 URSI International Symposium on Electromagnetic Theory (EMTS) Pub Date : 2016-08-01 DOI: 10.1109/URSI-EMTS.2016.7571498
Hailong Li, Jun Xu, Maoyan Wang
{"title":"Power effect of polar summer mesosphere dusty plasma on space microwave energy transmission","authors":"Hailong Li, Jun Xu, Maoyan Wang","doi":"10.1109/URSI-EMTS.2016.7571498","DOIUrl":"https://doi.org/10.1109/URSI-EMTS.2016.7571498","url":null,"abstract":"Polar summer mesopause region belong to dusty plasma, the impact of dusty plasma on the electromagnetic signals have been verified by lots of experiments. If the system of space microwave energy transmission will be used in high latitudes of both hemispheres in the future, we need to pay more attention on dusty plasma in polar mesosphere. In the paper we will discuss signal effect of polar summer mesosphere dusty plasma on space microwave energy transmission.","PeriodicalId":400853,"journal":{"name":"2016 URSI International Symposium on Electromagnetic Theory (EMTS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130487558","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
High-quality discretizations for microwave simulations 微波模拟的高质量离散化
2016 URSI International Symposium on Electromagnetic Theory (EMTS) Pub Date : 2016-08-01 DOI: 10.1109/URSI-EMTS.2016.7571332
Jukka Rabina, Sanna Monkola, T. Rossi
{"title":"High-quality discretizations for microwave simulations","authors":"Jukka Rabina, Sanna Monkola, T. Rossi","doi":"10.1109/URSI-EMTS.2016.7571332","DOIUrl":"https://doi.org/10.1109/URSI-EMTS.2016.7571332","url":null,"abstract":"We apply high-quality discretizations to simulate electromagnetic microwaves. Instead of the vector field presentations, we focus on differential forms and discretize the model in the spatial domain using the discrete exterior calculus. At the discrete level, both the Hodge operators and the time discretization are optimized for time-harmonic simulations. Non-uniform spatial and temporal discretization are applied in problems in which the wavelength is highly-variable and geometry contains sub-wavelength structures.","PeriodicalId":400853,"journal":{"name":"2016 URSI International Symposium on Electromagnetic Theory (EMTS)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121410087","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
Capabilities of the discrete dipole approximation for large particle systems 大粒子系统离散偶极近似的能力
2016 URSI International Symposium on Electromagnetic Theory (EMTS) Pub Date : 2016-08-01 DOI: 10.1109/URSI-EMTS.2016.7571405
M. Yurkin
{"title":"Capabilities of the discrete dipole approximation for large particle systems","authors":"M. Yurkin","doi":"10.1109/URSI-EMTS.2016.7571405","DOIUrl":"https://doi.org/10.1109/URSI-EMTS.2016.7571405","url":null,"abstract":"The discrete dipole approximation (DDA) is a general method to simulate light scattering by arbitrary particles. This talk reviews the DDA with focus on its application to very large particle systems, typically consisting of large numbers of particles with sizes comparable to or larger than the wavelength. Overall, the DDA is a viable option for such problems - it is conceptually simple, can naturally handle arbitrary inhomogeneous particles, and benefits from the availability of open-source codes. However, the major limitation is the computational complexity rapidly increasing with the size of the system. A few ideas to alleviate this issue are discussed, including the fast multipole method and the multi-grid DDA. While the DDA is equally applicable to both connected and disconnected particle systems, when applied to the latter it provides some insights into the notion of multiple scattering.","PeriodicalId":400853,"journal":{"name":"2016 URSI International Symposium on Electromagnetic Theory (EMTS)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114238824","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
Theory of characteristic modes based on potential-based integral equation 基于位势积分方程的特征模态理论
2016 URSI International Symposium on Electromagnetic Theory (EMTS) Pub Date : 2016-08-01 DOI: 10.1109/URSI-EMTS.2016.7571377
Qin S. Liu, Sheng Sun, Q. Dai, W. Chew, L. J. Jiang
{"title":"Theory of characteristic modes based on potential-based integral equation","authors":"Qin S. Liu, Sheng Sun, Q. Dai, W. Chew, L. J. Jiang","doi":"10.1109/URSI-EMTS.2016.7571377","DOIUrl":"https://doi.org/10.1109/URSI-EMTS.2016.7571377","url":null,"abstract":"The characteristic mode analysis is presented based on the potential-based integral equation, where the vector potential equation and the scalar potential are formulated separately and solved in tandem. Accordingly, the theory of the characteristic modes, originated from the electrical field integral equation (EFIE), can be analyzed for the novel potential-based integral equation system with the contributions from different components in EFIE.","PeriodicalId":400853,"journal":{"name":"2016 URSI International Symposium on Electromagnetic Theory (EMTS)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121355740","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
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