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2011 VIII International Conference on Antenna Theory and Techniques最新文献

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Synthesis of arbitrarily shaped impedance reflectors 任意形状阻抗反射器的合成
2011 VIII International Conference on Antenna Theory and Techniques Pub Date : 2011-09-01 DOI: 10.1109/ICATT.2011.6170711
Y. Yukhanov, A. Yukhanov, T. Privalova
{"title":"Synthesis of arbitrarily shaped impedance reflectors","authors":"Y. Yukhanov, A. Yukhanov, T. Privalova","doi":"10.1109/ICATT.2011.6170711","DOIUrl":"https://doi.org/10.1109/ICATT.2011.6170711","url":null,"abstract":"A rigorously stated synthesis problem of inhomogeneous stationary and quasi-stationary impedance planes, which reflect a homogeneous flat wave in the given direction at the required polarization with a frequency shift, is solved. The impedance distribution law is obtained in the explicit form. Restrictions on class of realizable scattering patterns for passive impedance are formulated; formulas for the reflection coefficient of the flat wave reflected by the inhomogeneous impedance plane are developed. Bistatic and monostatic scattering patterns are considered.","PeriodicalId":433613,"journal":{"name":"2011 VIII International Conference on Antenna Theory and Techniques","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126150866","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
Application of penetrating area method to calculate waveguide phased antennas array with magnetic-dielectrical materials 穿透面积法在磁介质材料波导相控天线阵计算中的应用
2011 VIII International Conference on Antenna Theory and Techniques Pub Date : 2011-09-01 DOI: 10.1109/ICATT.2011.6170758
S. Marchenko, V. Morozov
{"title":"Application of penetrating area method to calculate waveguide phased antennas array with magnetic-dielectrical materials","authors":"S. Marchenko, V. Morozov","doi":"10.1109/ICATT.2011.6170758","DOIUrl":"https://doi.org/10.1109/ICATT.2011.6170758","url":null,"abstract":"Development of the penetrating area method (PAM) to the electrodynamics calculation of planewaveguide infinite phased array antennas (PAA) with magnetic-dielectrical including is presented in this report. A method of Green's function formulating of stratified magnetic-dielectrical including is demonstrated. Approach of obtaining of the correct resulting integral equation is shown.","PeriodicalId":433613,"journal":{"name":"2011 VIII International Conference on Antenna Theory and Techniques","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131255167","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
Large-aperture slotted-waveguide antenna arrays: Development and fabrication advances 大孔径开槽波导天线阵列:发展与制造进展
2011 VIII International Conference on Antenna Theory and Techniques Pub Date : 2011-09-01 DOI: 10.1109/ICATT.2011.6170708
S. Sekretarov, A. V. Somov, D. Vavriv
{"title":"Large-aperture slotted-waveguide antenna arrays: Development and fabrication advances","authors":"S. Sekretarov, A. V. Somov, D. Vavriv","doi":"10.1109/ICATT.2011.6170708","DOIUrl":"https://doi.org/10.1109/ICATT.2011.6170708","url":null,"abstract":"An efficient approach to the synthesis of large-aperture slotted-waveguide antennas (SWA) is proposed. The approach is based on a combined usage of a full wave simulation and physical properties of SWA. The proposed approach was applied to the development of a large-aperture Ka-band antenna with a 1 meter aperture. The obtained antenna gain is close to the theoretical maximum for such aperture. The antenna is also characterized by a relatively wide frequency operational range that is achieved by application of the subarraying technique. The influence of the systematic and random manufacturing errors on the antenna performance is investigated. A comparison of the simulation results with the antenna measurement results is presented as well.","PeriodicalId":433613,"journal":{"name":"2011 VIII International Conference on Antenna Theory and Techniques","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127693285","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
Visually lossless compression of synthetic aperture radar images 合成孔径雷达图像的视觉无损压缩
2011 VIII International Conference on Antenna Theory and Techniques Pub Date : 2011-09-01 DOI: 10.1109/ICATT.2011.6170755
N. Ponomarenko, V. Lukin, K. Egiazarian
{"title":"Visually lossless compression of synthetic aperture radar images","authors":"N. Ponomarenko, V. Lukin, K. Egiazarian","doi":"10.1109/ICATT.2011.6170755","DOIUrl":"https://doi.org/10.1109/ICATT.2011.6170755","url":null,"abstract":"A task of visually lossless but, in fact, lossy compression of synthetic aperture radar (SAR) images corrupted by intensive speckle is considered. A method based on discrete cosine transform (DCT) applied in 8×8 blocks is proposed. The method is adapted to spatial DCT spectrum of speckle and its multiplicative nature. It is shown that the proposed method allows providing compression ratio (CR) of about 3.2…3.5 for simulated and real life SAR images which is sufficiently larger than for image lossless comp ression tech niqu es.","PeriodicalId":433613,"journal":{"name":"2011 VIII International Conference on Antenna Theory and Techniques","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122568293","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
Coupled plasma cylindrical columns as sub-wavelength antenna 耦合等离子体圆柱柱作为亚波长天线
2011 VIII International Conference on Antenna Theory and Techniques Pub Date : 2011-09-01 DOI: 10.1109/ICATT.2011.6170721
N. Stogniy, N. Sakhnenko
{"title":"Coupled plasma cylindrical columns as sub-wavelength antenna","authors":"N. Stogniy, N. Sakhnenko","doi":"10.1109/ICATT.2011.6170721","DOIUrl":"https://doi.org/10.1109/ICATT.2011.6170721","url":null,"abstract":"We theoretically study the resonant properties of an aggregate of coupled cylinders filled with negative permittivity plasma. Such a problem has applications in optical and plasma antennas, intelligent antenna systems, and pulse-driven antenna arrays. Chain of columns of plasma can be used in the design of both transmitting and receiving antennas with a very broad frequency range and tunability that allows switching it on and off very fast. The Mie series expansion is used to derive the solution. Electromagnetic analysis of the spectrum of different plasmon resonances is presented.","PeriodicalId":433613,"journal":{"name":"2011 VIII International Conference on Antenna Theory and Techniques","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121290422","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 energy of the field radiated by Hertz dipole 赫兹偶极子辐射出的场的能量
2011 VIII International Conference on Antenna Theory and Techniques Pub Date : 2011-09-01 DOI: 10.1109/ICATT.2011.6170717
Iana Volvach, O. Dumin, O. Dumina
{"title":"The energy of the field radiated by Hertz dipole","authors":"Iana Volvach, O. Dumin, O. Dumina","doi":"10.1109/ICATT.2011.6170717","DOIUrl":"https://doi.org/10.1109/ICATT.2011.6170717","url":null,"abstract":"All components of electromagnetic field radiated from Hertz dipole excited by current with arbitrary time dependence are obtained in time domain by means of vector Hertz technique. The processes of transformation of quasistatic components of field into electromagnetic wave are investigated. The problem of radiation of Hertz dipole with quickly decreasing dipole moment from some constant value to zero is considered. The questions of describing the process of the forming of free electromagnetic field from quasistatic field components in near field zone of dipole are discussed.","PeriodicalId":433613,"journal":{"name":"2011 VIII International Conference on Antenna Theory and Techniques","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116610549","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: 11
Simulation of microwave exposure of human cells by electromagnetic field of EMF band 电磁场波段电磁场对人体细胞微波照射的模拟
2011 VIII International Conference on Antenna Theory and Techniques Pub Date : 2011-09-01 DOI: 10.1109/ICATT.2011.6170768
O. Dumin, O. Dumina, N. Kolchigin, D. Ivanchenko, Y. Shckorbatov, V. Pasiuga
{"title":"Simulation of microwave exposure of human cells by electromagnetic field of EMF band","authors":"O. Dumin, O. Dumina, N. Kolchigin, D. Ivanchenko, Y. Shckorbatov, V. Pasiuga","doi":"10.1109/ICATT.2011.6170768","DOIUrl":"https://doi.org/10.1109/ICATT.2011.6170768","url":null,"abstract":"To implement a novel method of investigation of electromagnetic field action on state of cell nucleus the simulation of irradiation of the cells of human buccal epithelium by electromagnetic field of EMF band is carried out. The cells were exposed to radiation of frequency f=36.64 GHz, with power densities W = 10−1, 1 and 4 W/m2 during 10 seconds. To answer on the question of existence of nonthermal biological effect of electromagnetic field onto living cells the specific absorption rate (SAR) of a solution that contained cells is calculated. The numerical simulation based on FDTD method permitted to take into account different parts of experimental setup to obtain real distribution of electromagnetic field inside irradiated solution.","PeriodicalId":433613,"journal":{"name":"2011 VIII International Conference on Antenna Theory and Techniques","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128055720","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
Method of electrodynamical analysis of complex antennas systems 复杂天线系统的电动力学分析方法
2011 VIII International Conference on Antenna Theory and Techniques Pub Date : 2011-09-01 DOI: 10.1109/ICATT.2011.6170762
M. A. Buzova
{"title":"Method of electrodynamical analysis of complex antennas systems","authors":"M. A. Buzova","doi":"10.1109/ICATT.2011.6170762","DOIUrl":"https://doi.org/10.1109/ICATT.2011.6170762","url":null,"abstract":"This article is about method of electrodynamical analysis of complex antennas systems containing different scatterers. Developed method is based on Fredholm's integral equations of first and second kind; 2-D integral equations first and second kind; physical optics. Article lists expressions used for calculation and some of the results.","PeriodicalId":433613,"journal":{"name":"2011 VIII International Conference on Antenna Theory and Techniques","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122938334","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: 5
Modeling of nonlinear effects in HTS resonator 高温超导谐振器非线性效应的建模
2011 VIII International Conference on Antenna Theory and Techniques Pub Date : 2011-09-01 DOI: 10.1109/ICATT.2011.6170752
A. Luchaninov, E. V. Krykun, D. Gavva
{"title":"Modeling of nonlinear effects in HTS resonator","authors":"A. Luchaninov, E. V. Krykun, D. Gavva","doi":"10.1109/ICATT.2011.6170752","DOIUrl":"https://doi.org/10.1109/ICATT.2011.6170752","url":null,"abstract":"In recent years increasingly in a variety of radio systems the microwave devices (transmission lines, resonators, filters, etc., that are) performed with using of the phenomenon of high temperature superconductivity (HTS) are used. From the point of view of the nonlinear properties of HTS conductors, these devices are nonlinear devices that are characterized by various nonlinear effects that often degrade the properties of the whole system. Therefore, the prediction of the nonlinear characteristics of devices with HTS is a very important task still at the design stage. In this paper we consider nonlinear effects in HTS microstrip resonators. A mathematical model based on the method of nonlinear integral equations (NIE) with respect to the distribution of spectral components of current density on the surface of the HTS conductor. A procedure of numerical solution of NIE for a periodic or intermittent mode device is offered. The results of studies of resonators with resistive and inductive nature of the nonlinearity of the surface impedance are introduced. It is shown that in resonators with inductive impedance with an increase in the level of the input there is a shift of the resonance frequency device and the response becomes asymmetric, which in turn leads to different levels of intermodulation distortion at different boundaries of bandwidth. The level of intermodulation products and the higher harmonics in the cavities of various types is analyzed.","PeriodicalId":433613,"journal":{"name":"2011 VIII International Conference on Antenna Theory and Techniques","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129330079","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
The mathematical features of the synthesis of antennas with a flat aperture according to the prescribed amplitude directivity pattern 根据规定的振幅指向性图合成平面孔径天线的数学特征
2011 VIII International Conference on Antenna Theory and Techniques Pub Date : 2011-09-01 DOI: 10.1109/ICATT.2011.6170751
P. Savenko, M. Tkach
{"title":"The mathematical features of the synthesis of antennas with a flat aperture according to the prescribed amplitude directivity pattern","authors":"P. Savenko, M. Tkach","doi":"10.1109/ICATT.2011.6170751","DOIUrl":"https://doi.org/10.1109/ICATT.2011.6170751","url":null,"abstract":"The results of investigations of synthesis antennas problems with a flat radiating aperture according to the prescribed amplitude directivity pattern (DP) in the different variational formulations are presented. The non-uniqueness and branching of solutions are characteristic for problems of this class. The methods for finding the branching lines of solutions dependent on the sizes of the aperture and properties of the prescribed amplitude DP are stated; justified algorithms for finding the optimal solutions of synthesis problem are presented. It is shown that finding the optimal phase DP improves significantly the quality of the approximation of synthesized DP to the prescribed in comparison with synthesis in the class of in-phase DP. In particular, it permits to decrease the sizes of antenna aperture at the same efficiency of synthesis in comparison to synthesis in the class in-phase DP nearly per 30%.","PeriodicalId":433613,"journal":{"name":"2011 VIII International Conference on Antenna Theory and Techniques","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128460398","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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