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2017 XI International Conference on Antenna Theory and Techniques (ICATT)最新文献

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Electromagnetic near-field of circumferential slot cut in coaxial line shield 同轴线路屏蔽环向槽切电磁近场
2017 XI International Conference on Antenna Theory and Techniques (ICATT) Pub Date : 2017-05-01 DOI: 10.1109/ICATT.2017.7972593
V. Lyashchenko, N. Medvedev, A. Olefir
{"title":"Electromagnetic near-field of circumferential slot cut in coaxial line shield","authors":"V. Lyashchenko, N. Medvedev, A. Olefir","doi":"10.1109/ICATT.2017.7972593","DOIUrl":"https://doi.org/10.1109/ICATT.2017.7972593","url":null,"abstract":"The problem of determining the electromagnetic fields, created by slotted coaxial line, is solved in the present work. To determine the coaxial-slot antenna near-fields the Kirchhoffs method has been applied. Electromagnetic field distributions in the near-zone of coaxial-slot radiator have been explored for different values of feeder parameters on a large range of wavelengths. Field diffraction patterns for the short distances from the slot radiators have been obtained.","PeriodicalId":321624,"journal":{"name":"2017 XI International Conference on Antenna Theory and Techniques (ICATT)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117103650","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
Millimeter-range radiometric system for perspective problems of meteorology and telecommunication 用于气象和电信透视问题的毫米范围辐射测量系统
2017 XI International Conference on Antenna Theory and Techniques (ICATT) Pub Date : 2017-05-01 DOI: 10.1109/ICATT.2017.7972583
V. Pavlikov, N. Ruzhentsev, A. Sobkolov, A. Tsopa, D. S. Sal’nikov
{"title":"Millimeter-range radiometric system for perspective problems of meteorology and telecommunication","authors":"V. Pavlikov, N. Ruzhentsev, A. Sobkolov, A. Tsopa, D. S. Sal’nikov","doi":"10.1109/ICATT.2017.7972583","DOIUrl":"https://doi.org/10.1109/ICATT.2017.7972583","url":null,"abstract":"Short description of new ground radiometric complex, working on 40 GHz and 94 GHz frequencies and providing remote continuous measurements of full vertical atmosphere attenuation, effective temperature values and liquid-water content of clouds, integral content of vaporous moisture in atmosphere. The feature of the complex is the availability of digital signal processing of detected signals mode.","PeriodicalId":321624,"journal":{"name":"2017 XI International Conference on Antenna Theory and Techniques (ICATT)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132644595","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
Origins of the digital antenna array theory 数字天线阵列理论的起源
2017 XI International Conference on Antenna Theory and Techniques (ICATT) Pub Date : 2017-05-01 DOI: 10.1109/ICATT.2017.7972621
V. Slyusar
{"title":"Origins of the digital antenna array theory","authors":"V. Slyusar","doi":"10.1109/ICATT.2017.7972621","DOIUrl":"https://doi.org/10.1109/ICATT.2017.7972621","url":null,"abstract":"The origins of the digital antenna array theory are presented in this paper.","PeriodicalId":321624,"journal":{"name":"2017 XI International Conference on Antenna Theory and Techniques (ICATT)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131744060","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 fields in the near-zone of aperture antennas with round opening 圆开口孔径天线近区电磁场
2017 XI International Conference on Antenna Theory and Techniques (ICATT) Pub Date : 2017-05-01 DOI: 10.1109/ICATT.2017.7972594
N. Gorobets, Y. Ovsyannikova
{"title":"Electromagnetic fields in the near-zone of aperture antennas with round opening","authors":"N. Gorobets, Y. Ovsyannikova","doi":"10.1109/ICATT.2017.7972594","DOIUrl":"https://doi.org/10.1109/ICATT.2017.7972594","url":null,"abstract":"Using the vectorized Kirchhoff integral, the external problem of electrodynamics is solved for emission of continuous aperture antennas with a circular shape radiating opening. The mathematical support was developed and calculations of amplitude and phase characteristics of electric and magnetic fields in the direction of the normal to the radiating opening and on plane surfaces parallel to the opening were carried out, the amplitude and phase distribution of the field sources being constant, the change in the opening diameter from half to 100 wavelengths. It is shown that the searchlight beam in the near-zone of such antennas is formed, diameters of the radiating opening being larger than 1.5–2 wavelengths, the amplitude of electric and magnetic fields oscillate uniformly over a larger range of values compared with cases of square and rectangular opening.","PeriodicalId":321624,"journal":{"name":"2017 XI International Conference on Antenna Theory and Techniques (ICATT)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128348994","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
Influence of the autodyne oscillator coupling degree with antenna upon its transfer and noise characteristics 自激振荡器与天线耦合程度对其传递和噪声特性的影响
2017 XI International Conference on Antenna Theory and Techniques (ICATT) Pub Date : 2017-05-01 DOI: 10.1109/ICATT.2017.7972660
G. Ermak, A. Vasiliev, V. Noskov, K. Ignatkov, A. P. Chupahin, S. Smolskiy
{"title":"Influence of the autodyne oscillator coupling degree with antenna upon its transfer and noise characteristics","authors":"G. Ermak, A. Vasiliev, V. Noskov, K. Ignatkov, A. P. Chupahin, S. Smolskiy","doi":"10.1109/ICATT.2017.7972660","DOIUrl":"https://doi.org/10.1109/ICATT.2017.7972660","url":null,"abstract":"Analysis results of coupling degree influence of the autodyne oscillator with an antenna are presented together with influence of the impedance characteristic type (soft or rigid) of the active element on the coefficients of autodyne amplification, autodyne frequency deviation and power transfer as well as on the noise parameters and characteristics. Analytical and numerical calculations of above-mentioned parameters and characteristics are performed, and results of experimental investigations of the 8mm-range Gunn diode autodyne are given.","PeriodicalId":321624,"journal":{"name":"2017 XI International Conference on Antenna Theory and Techniques (ICATT)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126255921","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 solution of nonlinear spectral problems in syhthesis theory of antennas with flat aperture 平孔径天线合成理论中非线性频谱问题的数值解
2017 XI International Conference on Antenna Theory and Techniques (ICATT) Pub Date : 2017-05-01 DOI: 10.1109/ICATT.2017.7972590
P. Savenko, M. Tkach
{"title":"Numerical solution of nonlinear spectral problems in syhthesis theory of antennas with flat aperture","authors":"P. Savenko, M. Tkach","doi":"10.1109/ICATT.2017.7972590","DOIUrl":"https://doi.org/10.1109/ICATT.2017.7972590","url":null,"abstract":"Numerical method for solving the nonlinear two-parameter spectral problems arising in nonlinear synthesis theory of antennas with a flat radiating aperture is considered. The numerical algorithms to find the connected components of the spectrum of linear homogeneous two-dimensional integral equations which describe the branching lines of solutions of synthesis problems of the flat apertures and antenna arrays according to the prescribed requirements to amplitude directivity pattern are constructed and justified. For the case of rectangular aperture the analysis of branching of the solutions of basic equations of synthesis with using the proposed method is presented. Results of numerical experiments are given.","PeriodicalId":321624,"journal":{"name":"2017 XI International Conference on Antenna Theory and Techniques (ICATT)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114691811","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
Investigation of reflection in the foamed structures 泡沫结构反射的研究
2017 XI International Conference on Antenna Theory and Techniques (ICATT) Pub Date : 2017-05-01 DOI: 10.1109/ICATT.2017.7972680
L. Filins’kyy, V. Morozov
{"title":"Investigation of reflection in the foamed structures","authors":"L. Filins’kyy, V. Morozov","doi":"10.1109/ICATT.2017.7972680","DOIUrl":"https://doi.org/10.1109/ICATT.2017.7972680","url":null,"abstract":"The purpose of this paper is to investigate the coefücients of reflection of foam structures as a function of the foaming ratio of foams, the thicknesses of the foamed layers under investigation, and their combination with quasi-homogeneous layers. The investigations were carried out in the open space in the frequency range of 8–12 GHz. Reflection of this range for foams with a foaming ratio of 30, 60 and 170 and for the thickness of the foam samples: 10, 47 and 84 mm. It has been shown that foam layers, both alone and in combination with quasi-homogeneous layers, may be of some interest for the development and fabrication of electromagnetic wave absorbers of a given range for appropriate applications.","PeriodicalId":321624,"journal":{"name":"2017 XI International Conference on Antenna Theory and Techniques (ICATT)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123864702","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
Experimental evaluation of the shading effect of accelerating lens in azimuth plane 加速透镜在方位面上遮光效果的实验评价
2017 XI International Conference on Antenna Theory and Techniques (ICATT) Pub Date : 2017-05-01 DOI: 10.1109/ICATT.2017.7972671
V. Astapenya, V. Sokolov
{"title":"Experimental evaluation of the shading effect of accelerating lens in azimuth plane","authors":"V. Astapenya, V. Sokolov","doi":"10.1109/ICATT.2017.7972671","DOIUrl":"https://doi.org/10.1109/ICATT.2017.7972671","url":null,"abstract":"When using an accelerating metal-lamellar cylindrical lens to increase the signal level towards the remote subscriber of the wireless access system, a shadowing effect can be exerted on users outside the main lobe of the radiation pattern of this lens. The report presents the results of an experimental study of the field structure in the azimuth directions, different from the axis of the lens, oriented to the priority subscriber. The characteristics of the developed and manufactured software-hardware model, including metal-lamellar lens; a device for generating a data packet and emitting a signal; set of receiving sensors; the necessary software for the collection and processing of results. The measurements carried out under typical conditions showed that the “shading” sector estimated by (signal + noise) / noise ratio for the lens starts at about 6° with respect to the lens axis and ends at 30°.","PeriodicalId":321624,"journal":{"name":"2017 XI International Conference on Antenna Theory and Techniques (ICATT)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122170343","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: 10
Characteristics of directivity of vibrator antennas placed parallel to flat screen 平行于平屏放置的振子天线的指向性特性
2017 XI International Conference on Antenna Theory and Techniques (ICATT) Pub Date : 2017-05-01 DOI: 10.1109/ICATT.2017.7972634
A. A. Bulgakova, N. Gorobets, V. Lyashchenko
{"title":"Characteristics of directivity of vibrator antennas placed parallel to flat screen","authors":"A. A. Bulgakova, N. Gorobets, V. Lyashchenko","doi":"10.1109/ICATT.2017.7972634","DOIUrl":"https://doi.org/10.1109/ICATT.2017.7972634","url":null,"abstract":"The directivity diagrams of the Hertz dipole and a half-wave vibrator, which are situated parallel to the plane perfectly conducting infinite screen, are determined in the entire front half-space. It is shown that the width of the main lobe of the directivity pattern is increased when the radiator height above the screen is increased. After comparison with the known results it is proved that the calculation of the coefficient of directivity, which was obtained by integrating the directivity pattern over the entire space, made it possible to provide high accuracy of the calculation. It is also shown that the maximum of the coefficient of directivity of the Hertz dipole and the half-wave vibrator above the screen in the direction of the normal to the screen is equal to four times of the coefficient of directivity of these radiators in the free space.","PeriodicalId":321624,"journal":{"name":"2017 XI International Conference on Antenna Theory and Techniques (ICATT)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115539141","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
Two-frequency method for probing of ionospheric resonance inhomogeneities 探测电离层共振不均匀性的双频方法
2017 XI International Conference on Antenna Theory and Techniques (ICATT) Pub Date : 2017-05-01 DOI: 10.1109/ICATT.2017.7972677
A. Nasybullin, D. Vedenkin
{"title":"Two-frequency method for probing of ionospheric resonance inhomogeneities","authors":"A. Nasybullin, D. Vedenkin","doi":"10.1109/ICATT.2017.7972677","DOIUrl":"https://doi.org/10.1109/ICATT.2017.7972677","url":null,"abstract":"The paper studies principles of ionospheric irregularities probed using polyharmonic signals on the example of the two-frequency oscillation which is a beat signal. Authors have considered the interaction of a symmetrical two-frequency signal with an abstract resonant circuit which shows the normalized frequency dependence of the reflection coefficient, typical for resonant inhomogeneities in the form of a periodic structure in the ionosphere.","PeriodicalId":321624,"journal":{"name":"2017 XI International Conference on Antenna Theory and Techniques (ICATT)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129612484","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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