发布求助
文献互助 智能选刊 最新文献

Proceedings of Xth International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory最新文献

筛选
英文 中文
Operator method in the problem of wave diffraction by flat semi-infinite strip grating 平面半无限条形光栅波衍射问题的算符法
Proceedings of Xth International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory Pub Date : 1900-01-01 DOI: 10.1109/DIPED.2005.201578
S. N. Vorobyov
{"title":"Operator method in the problem of wave diffraction by flat semi-infinite strip grating","authors":"S. N. Vorobyov","doi":"10.1109/DIPED.2005.201578","DOIUrl":"https://doi.org/10.1109/DIPED.2005.201578","url":null,"abstract":"The electromagnetic (EM) wave scattering by a flat semi-infinite grating (SIG) of metal strips is studied by the operator method. The nonlinear equation in terms of the operator of reflection from SIG is built using the translation property of a periodical SIG. The approximate analytical solution at the assumption that strips are narrow and spaced sparsely is obtained by the steepest-descent method. This representation can be used as the initial approach for an iteration procedure of the numerical solution in general case.","PeriodicalId":169377,"journal":{"name":"Proceedings of Xth International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory","volume":"13 10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123647622","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
Understanding the beam area at quantum level using string theory 用弦理论在量子水平上理解光束面积
Proceedings of Xth International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory Pub Date : 1900-01-01 DOI: 10.1109/DIPED.2005.201596
K. R. Solipuram
{"title":"Understanding the beam area at quantum level using string theory","authors":"K. R. Solipuram","doi":"10.1109/DIPED.2005.201596","DOIUrl":"https://doi.org/10.1109/DIPED.2005.201596","url":null,"abstract":"One of the most important and root basic of communication technology is the antenna parameter, called the beam area or the beam solid angle. Since communications can be related in every way to light and the Maxwell equations, it is very apparent that string theory with its concepts of D-branes and quantum oscillators can help in the understanding the antenna parameter at a quantum level. This paper is based on this very aspect of string theory, and proceeds to bring out a relation of the beam area in terms of string parameters.","PeriodicalId":169377,"journal":{"name":"Proceedings of Xth International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127222938","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 the theory of a spherical radome 关于球形天线罩的理论
Proceedings of Xth International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory Pub Date : 1900-01-01 DOI: 10.1109/DIPED.2005.201598
G. Kevanishvili, K. Kotetishvili, I. Kevanishvili, G. Chikhladze, T. A. Kokrashvili
{"title":"On the theory of a spherical radome","authors":"G. Kevanishvili, K. Kotetishvili, I. Kevanishvili, G. Chikhladze, T. A. Kokrashvili","doi":"10.1109/DIPED.2005.201598","DOIUrl":"https://doi.org/10.1109/DIPED.2005.201598","url":null,"abstract":"Approximate electrodynamic theory of a spherical radome of an antenna is suggested, when inside of it close to its center is placed a dipole. Calculating formula of the power radiated in far zone is received. Conditions, at which this power reaches its maximal value, are considered. For the width of the dielectric layer of the radome these conditions give transcendental equation, which may be solved by graphical method for fixed values of the wavelength and dielectric permittivity of the spherical layer of the radome. Examples of calculation of geometric dimensions of the radome are presented.","PeriodicalId":169377,"journal":{"name":"Proceedings of Xth International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129520369","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
Numerical solving of two-dimensional nonlinear spectral problem arising in antenna synthesis with flat radiating aperture 平面辐射孔径天线合成中二维非线性频谱问题的数值求解
Proceedings of Xth International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory Pub Date : 1900-01-01 DOI: 10.1109/DIPED.2005.201615
L. Protsakh, M. Tkach, P. Savenko
{"title":"Numerical solving of two-dimensional nonlinear spectral problem arising in antenna synthesis with flat radiating aperture","authors":"L. Protsakh, M. Tkach, P. Savenko","doi":"10.1109/DIPED.2005.201615","DOIUrl":"https://doi.org/10.1109/DIPED.2005.201615","url":null,"abstract":"Two various approaches to solving of two-dimensional nonlinear spectral problem arising at researching the branching of the solutions of nonlinear synthesis problems with flat radiating aperture, are stated. The numerical examples of finding of eigenvalues for the case of flat rectangular aperture, are given.","PeriodicalId":169377,"journal":{"name":"Proceedings of Xth International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory","volume":"432 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116005997","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
Development of FEM/MOM approach for investigation of vehicle glass antennas 汽车玻璃天线有限元/模态分析方法的发展
Proceedings of Xth International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory Pub Date : 1900-01-01 DOI: 10.1109/DIPED.2005.201618
G. Lomidze, P. Tsereteli, R. Kvaratskhelia, R. Jobava, Z. Sukhiashvili
{"title":"Development of FEM/MOM approach for investigation of vehicle glass antennas","authors":"G. Lomidze, P. Tsereteli, R. Kvaratskhelia, R. Jobava, Z. Sukhiashvili","doi":"10.1109/DIPED.2005.201618","DOIUrl":"https://doi.org/10.1109/DIPED.2005.201618","url":null,"abstract":"The aim of this work is development of robust model suitable for analysis of automobile glass antennas. The model is based on FEM/MOM (Finite Element Method combined with Method of Moments) considerations for effective and accurate solution and reflects the latest improvements and modifications to EMAP5 [l],[2],[3]. Appropriate changes on pre-processing stage are performed in order to reflect data flow peculiarities in the automotive industry. Performance of the solver is improved because of usage sophisticated matrix solver. Some examples are provided to demonstrate the capability of modeling and to compare calculation time with those obtained original EMAP5.","PeriodicalId":169377,"journal":{"name":"Proceedings of Xth International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130576528","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
Relativistic rotation and classic electrodynamics validity limit 相对论旋转与经典电动力学有效性极限
Proceedings of Xth International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory Pub Date : 1900-01-01 DOI: 10.1109/DIPED.2005.201597
I. Lomidze, D. Karkashadze, J. Javakhishvili
{"title":"Relativistic rotation and classic electrodynamics validity limit","authors":"I. Lomidze, D. Karkashadze, J. Javakhishvili","doi":"10.1109/DIPED.2005.201597","DOIUrl":"https://doi.org/10.1109/DIPED.2005.201597","url":null,"abstract":"As it is known the limit of applicability of classical electrodynamics (ED) is limited with so called electron's classical radius Rcl/spl sim/elmc/sup 2/. This estimation appears in the several totally different approaches to the problem with one common assumption, that electron has a finite size. It is necessary to specify that there is no consecutive and strict account of the relativistic rotational movement's contribution into the calculation of energy and angular momentum of the researched objects. Such omission is that the contribution in cross section of EM waves scattering on the magnetic moment of electron can be neglected, while it is not correct for relativistic velocities. In this paper it is shown that the removal of such omission (in the context of strict relativistic description) leads to the possibility of obtaining the correct limit of applicability of classic Rcl/spl sim/h/mc.","PeriodicalId":169377,"journal":{"name":"Proceedings of Xth International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122809171","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
Efficient field solvers for the analysis of photonic crystal filters 用于光子晶体滤波器分析的高效场求解器
Proceedings of Xth International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory Pub Date : 1900-01-01 DOI: 10.1109/DIPED.2005.201607
K. Tavzarashvili, D. Karkashadze, C. Hafner, C. Xudong
{"title":"Efficient field solvers for the analysis of photonic crystal filters","authors":"K. Tavzarashvili, D. Karkashadze, C. Hafner, C. Xudong","doi":"10.1109/DIPED.2005.201607","DOIUrl":"https://doi.org/10.1109/DIPED.2005.201607","url":null,"abstract":"An efficient method for the accurate conputation of the response of photonic crystal filters is obtained from a combination of the Model-Based Parameter Estimation (MBPE) technique with accurate field solvers such as the Multiple Multipole Program (MMP) or the Method of Auxiliary Sources (MAS). When metals are present in such filters, strong material dispersion at optical frequencies causes nonlinearity of the filter respose. It is demonstrated that the technique remains accurate when the frequency range is subdivided into pieces with moderate dispersion. Excellent agreement of MMP-MBPE and MAS-MBPE with a commercial time domain solver is demonstrated","PeriodicalId":169377,"journal":{"name":"Proceedings of Xth International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126410064","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
The calculation method of reflectarray of microstrip radiators 微带辐射器反射辐射的计算方法
Proceedings of Xth International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory Pub Date : 1900-01-01 DOI: 10.1109/DIPED.2005.201614
B. Levin, M. Parnes
{"title":"The calculation method of reflectarray of microstrip radiators","authors":"B. Levin, M. Parnes","doi":"10.1109/DIPED.2005.201614","DOIUrl":"https://doi.org/10.1109/DIPED.2005.201614","url":null,"abstract":"The method of a calculation of a current phase increment in a microstrip antenna in comparison with an incident field phase and accordingly of a field phase step in a signal reradiation by a reflectarray element is offered. The field phase step depending on an antenna length, reactive stub dimensions and a capacity of the condenser, formed by a slot, cut in an antenna, is calculated.","PeriodicalId":169377,"journal":{"name":"Proceedings of Xth International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132128590","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
Periodically non-stationary random processes modeling: Approach on the basis of harmonic representation 周期非平稳随机过程建模:基于调和表示的方法
Proceedings of Xth International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory Pub Date : 1900-01-01 DOI: 10.1109/DIPED.2005.201622
Ihor Javorskyj, I. Kravets, I. Isayev, S. Brooks
{"title":"Periodically non-stationary random processes modeling: Approach on the basis of harmonic representation","authors":"Ihor Javorskyj, I. Kravets, I. Isayev, S. Brooks","doi":"10.1109/DIPED.2005.201622","DOIUrl":"https://doi.org/10.1109/DIPED.2005.201622","url":null,"abstract":"Theoretical and experimental results of time series modeling are summarized. Special attention is given to periodically correlated random processes (PCRP). It is suggested to use the parametric modeling methods on the basis of PCRP decomposition on stationary processes for construction of the process model. Proposed parametrical model is helpful for veriflcation the efficiency of devices and systems with periodical character of sources.","PeriodicalId":169377,"journal":{"name":"Proceedings of Xth International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133509044","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
Time-domain methods in problems of model synthesis of microwave power compressors 微波功率压缩机模型综合问题的时域方法
Proceedings of Xth International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory Pub Date : 1900-01-01 DOI: 10.1109/DIPED.2005.201579
K. Sirenko
{"title":"Time-domain methods in problems of model synthesis of microwave power compressors","authors":"K. Sirenko","doi":"10.1109/DIPED.2005.201579","DOIUrl":"https://doi.org/10.1109/DIPED.2005.201579","url":null,"abstract":"Introduction The construction of the exact 'absorbing' conditions [1] has extended substantially the range of rigorously solvable initial boundary-value problems in the electrodynamics of nonsine waves and has allowed us to construct effectively analyzable models of open resonant structures. These structures are the basic electrodynamic objects in many modem microwave devices, in particular, microwave power compressors. The paper is devoted to the analysis of the problems arising in model synthesis of the devices of this kind.","PeriodicalId":169377,"journal":{"name":"Proceedings of Xth International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory","volume":"173 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126287234","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信