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2006 International Conference on Mathematical Methods in Electromagnetic Theory最新文献

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Application of Equivalent Currents and Charges Conception for Visualization of the Body's Front-Face Area Based on Total Field's Reconstruction 基于全场重构的等效电流和电荷概念在人体前脸区域可视化中的应用
2006 International Conference on Mathematical Methods in Electromagnetic Theory Pub Date : 2006-09-11 DOI: 10.1109/MMET.2006.1689842
V. Tabatadze, D. Kakulia, G. Ghvedashvili, G. Saparishvili, R. Zaridze
{"title":"Application of Equivalent Currents and Charges Conception for Visualization of the Body's Front-Face Area Based on Total Field's Reconstruction","authors":"V. Tabatadze, D. Kakulia, G. Ghvedashvili, G. Saparishvili, R. Zaridze","doi":"10.1109/MMET.2006.1689842","DOIUrl":"https://doi.org/10.1109/MMET.2006.1689842","url":null,"abstract":"The variety of approaches for remote determination of shape and position of latent bodies is important in vast number of applications in different branches of science and technology, such as applied electrodynamics, tomography, medicine (for investigation of the internal organs), archeology (for the study of fragile archeological samples), military engineering (for detection of explosive substances) and so on. Moreover, such methods represent the only possibility of exploration, in case when a direct contact is undesirable, dangerous or simply impossible. Most of the currently existing methods reconstruct the body's shape by means of its direct exposure to the radiation of significantly less wavelength compared to its size. The proposed method can be used even when the wavelength is comparable to the body's sizes","PeriodicalId":236672,"journal":{"name":"2006 International Conference on Mathematical Methods in Electromagnetic Theory","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123370512","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
Electromagnetic Waves Radiation from Periodic Boundary Dispersive of Dispersive Dielectric 色散介质周期边界色散的电磁波辐射
2006 International Conference on Mathematical Methods in Electromagnetic Theory Pub Date : 2006-09-11 DOI: 10.1109/MMET.2006.1689861
M. Melezhik, A. Poyedinchuk, N. Yashina, G. Granet
{"title":"Electromagnetic Waves Radiation from Periodic Boundary Dispersive of Dispersive Dielectric","authors":"M. Melezhik, A. Poyedinchuk, N. Yashina, G. Granet","doi":"10.1109/MMET.2006.1689861","DOIUrl":"https://doi.org/10.1109/MMET.2006.1689861","url":null,"abstract":"The transformation of inhomogeneous waves in the dispersive metamaterial into the radiating harmonics on its periodic boundary is considered. It is shown, that due to the dispersion of the material the additional resonances in the radiation pattern appear and this gives a new possibility for surface waves antennas design","PeriodicalId":236672,"journal":{"name":"2006 International Conference on Mathematical Methods in Electromagnetic Theory","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115264447","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 Scattering of Electromagnetic Waves by Pre-Fractal Strip System 预分形条形系统对电磁波的散射
2006 International Conference on Mathematical Methods in Electromagnetic Theory Pub Date : 2006-09-11 DOI: 10.1109/MMET.2006.1689872
G. Koshovy
{"title":"On Scattering of Electromagnetic Waves by Pre-Fractal Strip System","authors":"G. Koshovy","doi":"10.1109/MMET.2006.1689872","DOIUrl":"https://doi.org/10.1109/MMET.2006.1689872","url":null,"abstract":"The problem of scattering of the E-polarized electromagnetic wave by pre-fractal system of cylindrical curvilinear strips is considered. It is reduced to a system of singular integral equations (SIE) of the first kind with respect to surface currents' density on the strips. The direct numerical method of mechanical quadratures (MQ-method) and the Vekua-Carleman's method of regularization (VCR-method) are used to solve the system of SIE's in the case of fractal's generator. The VCR-method gives us an explicit solution in the case of quasi-static model","PeriodicalId":236672,"journal":{"name":"2006 International Conference on Mathematical Methods in Electromagnetic Theory","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115701560","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
Parameters extraction from inhomogeneous metamaterials with model based parameter estimation 基于模型参数估计的非均匀超材料参数提取
2006 International Conference on Mathematical Methods in Electromagnetic Theory Pub Date : 2006-09-11 DOI: 10.1109/MMET.2006.1689812
C. Xudong, C. Hafner, K. Tavzarashvili, R. Vahldieck
{"title":"Parameters extraction from inhomogeneous metamaterials with model based parameter estimation","authors":"C. Xudong, C. Hafner, K. Tavzarashvili, R. Vahldieck","doi":"10.1109/MMET.2006.1689812","DOIUrl":"https://doi.org/10.1109/MMET.2006.1689812","url":null,"abstract":"Numerical extraction of effective material parameters of metamaterials is limited by data noise that may be caused by inaccurate field solvers as well as by inaccurate measurements. In some areas, the extraction formulas strongly amplify the noise, which results in useless results. This paper demonstrates that these noise-related problems may be overcome when the model based parameter estimation technique is used for fitting the frequency dependence of S parameters","PeriodicalId":236672,"journal":{"name":"2006 International Conference on Mathematical Methods in Electromagnetic Theory","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115747558","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
Far Field Calculation of the Defocused Parabolic Reflector Antennas by the Modified Edge Representation Line Integrals 基于改进边缘表示线积分的离焦抛物面反射天线远场计算
2006 International Conference on Mathematical Methods in Electromagnetic Theory Pub Date : 2006-09-11 DOI: 10.1109/MMET.2006.1689706
M. Ando, L. Rodriguez, T. Shijo
{"title":"Far Field Calculation of the Defocused Parabolic Reflector Antennas by the Modified Edge Representation Line Integrals","authors":"M. Ando, L. Rodriguez, T. Shijo","doi":"10.1109/MMET.2006.1689706","DOIUrl":"https://doi.org/10.1109/MMET.2006.1689706","url":null,"abstract":"This article resumes the recent results in the scattering field calculation by the modified edge representation technique, in the sense of the high frequency approximation. The expression of the scattering geometrical optics field contributions by the use of the MER line integrals is taken into account. The MER is applied to the conductive sphere and the convergence of the MER line integration to the scattering geometrical optics is observed. The radiation pattern is calculated for the defocused parabolic reflector antenna, with special interest in the reflection region. The agreement with the physical optics surface integration is observed and discussed","PeriodicalId":236672,"journal":{"name":"2006 International Conference on Mathematical Methods in Electromagnetic Theory","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130849699","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
Electromagnetic Modelling of Broadband Coupling Elements Between High - Q Resonators and Single - Mode Waveguides 高Q谐振器与单模波导间宽带耦合元件的电磁建模
2006 International Conference on Mathematical Methods in Electromagnetic Theory Pub Date : 2006-09-11 DOI: 10.1109/MMET.2006.1689798
G. Slepyan, V. Skresanov, V. Rodionova, V. Karpovich, M. Natarov
{"title":"Electromagnetic Modelling of Broadband Coupling Elements Between High - Q Resonators and Single - Mode Waveguides","authors":"G. Slepyan, V. Skresanov, V. Rodionova, V. Karpovich, M. Natarov","doi":"10.1109/MMET.2006.1689798","DOIUrl":"https://doi.org/10.1109/MMET.2006.1689798","url":null,"abstract":"A numerical technique for electromagnetic modeling of the element for coupling of high-quality resonators with single mode waveguides is considered. For broadband matching a smooth waveguide transition ending with a narrow slit has been suggested. It was shown that such a coupling element allows open resonators as well as corrugated ones to be realized that is readjustable in a wide range f=37-280 GHz and retains good matching standing-wave ratio <1,7 with the waveguide without any coupling adjustment in the for-reflection scheme","PeriodicalId":236672,"journal":{"name":"2006 International Conference on Mathematical Methods in Electromagnetic Theory","volume":"192 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124277310","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
Diffraction by crossed anisotropic gratings 交叉各向异性光栅衍射
2006 International Conference on Mathematical Methods in Electromagnetic Theory Pub Date : 2006-09-11 DOI: 10.1109/MMET.2006.1689864
G. Schmidt
{"title":"Diffraction by crossed anisotropic gratings","authors":"G. Schmidt","doi":"10.1109/MMET.2006.1689864","DOIUrl":"https://doi.org/10.1109/MMET.2006.1689864","url":null,"abstract":"Summary form only given. We consider the diffraction of time-harmonic electromagnetic waves by biperiodic structures, which are composed of nonmagnetic anisotropic optical materials and separate two homogeneous regions. By biperiodic or doubly periodic we mean that the structure is periodic in two not necessarily orthogonal directions. The scattered far field consists of a finite number of outgoing plane waves of known directions. To determine the intensity and phase of these diffracted modes one has to solve numerically the electromagnetic field equations. In the talk some analytical and numerical properties of this problem are discussed. Assuming quasiperiodic solutions the time-harmonic Maxwell equations can be reduced to a system of second order partial differential equations in a bounded periodic cell with jump conditions at material interfaces and with nonlocal boundary conditions. We formulate an variational equation which is equivalent to the boundary value problem. The variational form is strongly elliptic for all physical relevant parameters, which allows to prove quite general existence and uniqueness results for the direct diffraction problem. It can be shown that the diffraction problem is solvable for all frequencies and incident angles of the incoming plane wave, and that the solution is unique with exception of a discrete sequence of frequencies. If the structure contains absorbing materials, then the solution is always uniquely determined. The magnetic field of the solution belongs locally to the Sobolev space HI and depends smoothly on frequencies and incident angles of the incoming plane wave with exception of the Rayleigh frequencies. These properties allow to use standard 3D finite elements to solve the boundary value problem","PeriodicalId":236672,"journal":{"name":"2006 International Conference on Mathematical Methods in Electromagnetic Theory","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124387307","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 Resonance Diffraction of High Frequency Radiation at Periodically Corrugated Semiconductor Surfaces 周期性波纹半导体表面高频辐射的共振衍射
2006 International Conference on Mathematical Methods in Electromagnetic Theory Pub Date : 2006-09-11 DOI: 10.1063/1.2783183
N. Balakhonova, V. K. Gavrikov, A. V. Kats
{"title":"On Resonance Diffraction of High Frequency Radiation at Periodically Corrugated Semiconductor Surfaces","authors":"N. Balakhonova, V. K. Gavrikov, A. V. Kats","doi":"10.1063/1.2783183","DOIUrl":"https://doi.org/10.1063/1.2783183","url":null,"abstract":"We show that resonance features analogous to the well known in optics Wood-type anomalies can be observed at THz range on a periodically profiled surface of a high doped semiconductor at low temperatures. The anomalies are caused by surface plasmon polariton excitation at diffraction on the surface. The results are of interest both from physical viewpoint and in view of wide field of possible applications in nowadays information technologies","PeriodicalId":236672,"journal":{"name":"2006 International Conference on Mathematical Methods in Electromagnetic Theory","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122121151","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
EMI/EMC Analysis of Shipboard HF Antenna by Moment Method 基于矩量法的舰载高频天线电磁干扰分析
2006 International Conference on Mathematical Methods in Electromagnetic Theory Pub Date : 2006-09-11 DOI: 10.1109/MMET.2006.1689789
B. Turetken, F. Ustuner, E. Demirel, A. Dağdeviren
{"title":"EMI/EMC Analysis of Shipboard HF Antenna by Moment Method","authors":"B. Turetken, F. Ustuner, E. Demirel, A. Dağdeviren","doi":"10.1109/MMET.2006.1689789","DOIUrl":"https://doi.org/10.1109/MMET.2006.1689789","url":null,"abstract":"In this paper, the pattern analysis of HF antennas mounted on a ship is presented. The method of moments (MoM) is used to calculate the antenna pattern and inter antenna coupling in 1.6-30 MHz frequency range","PeriodicalId":236672,"journal":{"name":"2006 International Conference on Mathematical Methods in Electromagnetic Theory","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115319543","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
Implementation of adaptive multiscale moment method in analyzing a wide band E-shaped patch antenna for wireless communications 自适应多尺度矩法在无线通信宽带e型贴片天线分析中的实现
2006 International Conference on Mathematical Methods in Electromagnetic Theory Pub Date : 2006-09-11 DOI: 10.1109/MMET.2006.1689743
F. Gozasht, S. Nikmehr
{"title":"Implementation of adaptive multiscale moment method in analyzing a wide band E-shaped patch antenna for wireless communications","authors":"F. Gozasht, S. Nikmehr","doi":"10.1109/MMET.2006.1689743","DOIUrl":"https://doi.org/10.1109/MMET.2006.1689743","url":null,"abstract":"In this paper we employ adaptive multiscale moment method (AMMM) for the analyzing a wide band E-shaped patch antenna. This algorithm employs the conventional moment method and a special matrix transformation. The compression is applied directly to the solution then the size of the linear equations to be solved is reduced, thereby improving the efficiency of the conventional moment method. We were interested to implement this method in a 30.3% bandwidth E-shaped patch antenna, resonating at wireless communication frequencies of 1.9 and 2.4 GHz. The basic difference between this methodology and the other techniques presented so far is that we apply the compression not to the impedance matrix, but to the solution itself directly using an iterative solution methodology","PeriodicalId":236672,"journal":{"name":"2006 International Conference on Mathematical Methods in Electromagnetic Theory","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122928294","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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