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2015 International Conference on Antenna Theory and Techniques (ICATT)最新文献

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Interaction of a human head model with the antenna of mobile terminal 人体头部模型与移动终端天线的交互
2015 International Conference on Antenna Theory and Techniques (ICATT) Pub Date : 2015-04-21 DOI: 10.1109/ICATT.2015.7136850
M. Protsenko, L. I. Stepanova, O. O. Perley, V. G. Ishchenko
{"title":"Interaction of a human head model with the antenna of mobile terminal","authors":"M. Protsenko, L. I. Stepanova, O. O. Perley, V. G. Ishchenko","doi":"10.1109/ICATT.2015.7136850","DOIUrl":"https://doi.org/10.1109/ICATT.2015.7136850","url":null,"abstract":"Nowadays, the actual problem of development and usage of mobile communication devices is to solve problems of optimization of structures and characteristics of antennas of mobile terminals. One of the key criteria for evaluating the operation of the mobile terminal, operating near a human, the accepted value is SAR - Specific Absorption Rate. The purpose of this work is to study the dependence of SAR. For calculation and analysis the method of equivalent surface currents and the method of volume polarization currents were chosen, which are implemented using the software package FEKO. The dependences of the SAR on the distance between a model of the human head and the antenna of the mobile terminal with different polarization and its location in space on the example of a planar antenna are obtained. The results allow evaluating the impact of human head to the antenna performance of a mobile terminal in the near field.","PeriodicalId":283310,"journal":{"name":"2015 International Conference on Antenna Theory and Techniques (ICATT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130149840","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
Methods of studying the antennas synthesis problem in practical lessons 实际教学中天线综合问题的研究方法
2015 International Conference on Antenna Theory and Techniques (ICATT) Pub Date : 2015-04-21 DOI: 10.1109/ICATT.2015.7136788
A. Polyarus, A. Lebedynskyi
{"title":"Methods of studying the antennas synthesis problem in practical lessons","authors":"A. Polyarus, A. Lebedynskyi","doi":"10.1109/ICATT.2015.7136788","DOIUrl":"https://doi.org/10.1109/ICATT.2015.7136788","url":null,"abstract":"It is difficult to synthesize the antenna directly in practical lessons in general theory of antennas with students. The approximate method is proposed for solving the synthesis problem based on the minimization of the functional representing the distance in the functional space with a quadratic metric between the normalized desired antenna pattern (AP) and some normalized AP with unknown amplitude and phase distribution (APD) of the field in the aperture. In this case the AP does not necessarily have to relate to the class of realizable ones, and APD of the field, while functional is minimized, can be selected from the set of the functions suitable for implementation. Validity of the method is tested on the example of synthesis of a linear antenna with the APs for which the APD is accurately known. The recommendations for conducting practical lessons are given.","PeriodicalId":283310,"journal":{"name":"2015 International Conference on Antenna Theory and Techniques (ICATT)","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129740023","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
Analysis of the space-polarization structure of the field near the antenna of mobile terminal 移动终端天线附近场的空间极化结构分析
2015 International Conference on Antenna Theory and Techniques (ICATT) Pub Date : 2015-04-21 DOI: 10.1109/ICATT.2015.7136849
M. Protsenko, S. Siden
{"title":"Analysis of the space-polarization structure of the field near the antenna of mobile terminal","authors":"M. Protsenko, S. Siden","doi":"10.1109/ICATT.2015.7136849","DOIUrl":"https://doi.org/10.1109/ICATT.2015.7136849","url":null,"abstract":"One of the basic problems of all mobile communication system, which is transmission of signal via radio channel, is discussed. In urban conditions, this channel is characterized by multipath propagation. As a result, the field at the receiving point is of complex spatial-polarization structure, which reduces the power induced in a receive antenna and, accordingly, efficiency of the entire communication system. A mathematical model based on the n-ray propagation model is presented. Results of the elaborated simulation accounting for the polarization kind of radiated signal are presented. Boundaries for values of the power induced in antenna were found, as well as an additional gain given co-polarized reception at certain observation points. Based on these boundaries, requirements for optimal antenna systems, as well as algorithms for space-time processing, are formulated.","PeriodicalId":283310,"journal":{"name":"2015 International Conference on Antenna Theory and Techniques (ICATT)","volume":"279 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116991180","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
Modelling of a mimicry cloak for the elliptical cylinder to look like circular one 模拟斗篷的造型，使椭圆圆柱看起来像圆形圆柱
2015 International Conference on Antenna Theory and Techniques (ICATT) Pub Date : 2015-04-21 DOI: 10.1109/ICATT.2015.7136808
V. I. Vyunnik, A. Zvyagintsev
{"title":"Modelling of a mimicry cloak for the elliptical cylinder to look like circular one","authors":"V. I. Vyunnik, A. Zvyagintsev","doi":"10.1109/ICATT.2015.7136808","DOIUrl":"https://doi.org/10.1109/ICATT.2015.7136808","url":null,"abstract":"This paper considers creation of an anisotropic cloak that provides mimicry of an elliptic cylinder, covered by it, so that for an external observer this elliptical cylinder looks like circular. The technique of designing such mimicry cloaks using the transformation optics approach is presented. We provided a numerical simulation of such a cloak and evaluated its performance.","PeriodicalId":283310,"journal":{"name":"2015 International Conference on Antenna Theory and Techniques (ICATT)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121450585","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
Processing of oil sludge using microwave energy 微波能处理油泥的研究
2015 International Conference on Antenna Theory and Techniques (ICATT) Pub Date : 2015-04-21 DOI: 10.1109/ICATT.2015.7136899
D. Vedenkin, R. E. Samoshin, O. Zuev
{"title":"Processing of oil sludge using microwave energy","authors":"D. Vedenkin, R. E. Samoshin, O. Zuev","doi":"10.1109/ICATT.2015.7136899","DOIUrl":"https://doi.org/10.1109/ICATT.2015.7136899","url":null,"abstract":"Methods for oily waste processing in laboratory equipment using microwave technology are presented. A distinctive feature of this kind of waste treatment using microwave radiation is a high technology process and a very good quality of the product produced. The results of sludge treatment and some conclusions are also presented.","PeriodicalId":283310,"journal":{"name":"2015 International Conference on Antenna Theory and Techniques (ICATT)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126458166","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
Use of electromagnetic fields of extremely high frequency band for productivity improvement of cereal crops 利用极高频电磁场提高谷类作物的生产力
2015 International Conference on Antenna Theory and Techniques (ICATT) Pub Date : 2015-04-21 DOI: 10.1109/ICATT.2015.7136889
G. Morozov, N. E. Stakhova, I. Talanov, P. Talanov, A. Stepura
{"title":"Use of electromagnetic fields of extremely high frequency band for productivity improvement of cereal crops","authors":"G. Morozov, N. E. Stakhova, I. Talanov, P. Talanov, A. Stepura","doi":"10.1109/ICATT.2015.7136889","DOIUrl":"https://doi.org/10.1109/ICATT.2015.7136889","url":null,"abstract":"At present, in connection with rapid changes in climatic conditions, it is important to find the ways for preserving required productivity of farming crops. Microwave technology allows us to improve seed germination ability by their preplanting processing, which is one of the factors indicating an increase in productivity of farming crops. Here, we focus mainly on designing the models for managing biological objects and systems, at choosing parameters of electromagnetic fields of the extreme high frequencies, and at finding optimal modes for the pre-planting seed processing. Results of theoretical and experimental studies presented here confirm the possibility of controlling productivity of crops by their processing by electromagnetic fields of extremely high frequencies.","PeriodicalId":283310,"journal":{"name":"2015 International Conference on Antenna Theory and Techniques (ICATT)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114071264","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
Engineering style of thinking as objective of technical education 以工程思维方式作为技术教育的目标
2015 International Conference on Antenna Theory and Techniques (ICATT) Pub Date : 2015-04-21 DOI: 10.1109/ICATT.2015.7136800
Y. Choni
{"title":"Engineering style of thinking as objective of technical education","authors":"Y. Choni","doi":"10.1109/ICATT.2015.7136800","DOIUrl":"https://doi.org/10.1109/ICATT.2015.7136800","url":null,"abstract":"The most important feature of technical competence is a particular kind of mind that can be called an engineering way of thinking. Higher technical education must be completely imbued with an idea of encouraging students to gain necessary skills and master techniques to do so. The author discusses basic elements of the issue and presents some of the learning strategies developed by him for many years of teaching in the electromagnetics and antenna technique. They can be useful to others lecturers, regardless of subject they teach.","PeriodicalId":283310,"journal":{"name":"2015 International Conference on Antenna Theory and Techniques (ICATT)","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114165719","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
Excitation of the slot conical antenna (theory and experiment) 槽型圆锥天线的激励(理论与实验)
2015 International Conference on Antenna Theory and Techniques (ICATT) Pub Date : 2015-04-21 DOI: 10.1109/ICATT.2015.7136861
V. Doroshenko, O. E. Strelnytskyi, O. O. Strelnytskyi
{"title":"Excitation of the slot conical antenna (theory and experiment)","authors":"V. Doroshenko, O. E. Strelnytskyi, O. O. Strelnytskyi","doi":"10.1109/ICATT.2015.7136861","DOIUrl":"https://doi.org/10.1109/ICATT.2015.7136861","url":null,"abstract":"The mathematical and physical models of the process of excitation of a slotted broadband antenna are proposed. The results of theoretical and experimental studies of the electrodynamic properties of a cone with longitudinal slots are obtained. Calculated diagrams of the spatial field distribution with the experimentally measured data are compared.","PeriodicalId":283310,"journal":{"name":"2015 International Conference on Antenna Theory and Techniques (ICATT)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123364647","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
Optoelectronic systems for microwave instantaneous frequency measurement based on amplitude-phase modulation of the optical carrier 基于光载波幅相位调制的微波瞬时频率测量光电系统
2015 International Conference on Antenna Theory and Techniques (ICATT) Pub Date : 2015-04-21 DOI: 10.1109/ICATT.2015.7136882
P. E. Denisenko, A. A. Vasilets, M. R. Nurgazizov
{"title":"Optoelectronic systems for microwave instantaneous frequency measurement based on amplitude-phase modulation of the optical carrier","authors":"P. E. Denisenko, A. A. Vasilets, M. R. Nurgazizov","doi":"10.1109/ICATT.2015.7136882","DOIUrl":"https://doi.org/10.1109/ICATT.2015.7136882","url":null,"abstract":"This paper considers principles of construction and methods of analysis of electro-optical probing and characterization of the Brillouin gain contour, based on using the methods of poly-harmonic probing radiation and estimation of the parameters by evaluation of envelopes of its beating frequencies at stages of searching the center frequency, the maximum gain and the width of the contour determination, as the basic characteristics of measuring conversion of temperature and strain tension/compression in a single-mode optical fiber. The purpose is to improve the metrological, technical and economic characteristics of electro-optical systems of this type.","PeriodicalId":283310,"journal":{"name":"2015 International Conference on Antenna Theory and Techniques (ICATT)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125586037","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 influence of asymmetric water layer on the radiation characteristics of reflector antenna 非对称水层对反射面天线辐射特性的影响
2015 International Conference on Antenna Theory and Techniques (ICATT) Pub Date : 2015-04-21 DOI: 10.1109/ICATT.2015.7136835
O. Sukharevsky, S. Nechitaylo, O. Voitovych, G. Khlopov
{"title":"The influence of asymmetric water layer on the radiation characteristics of reflector antenna","authors":"O. Sukharevsky, S. Nechitaylo, O. Voitovych, G. Khlopov","doi":"10.1109/ICATT.2015.7136835","DOIUrl":"https://doi.org/10.1109/ICATT.2015.7136835","url":null,"abstract":"The analysis of water layer influence on the radiation characteristics of reflector antennas is performed. Gains and radiation patterns of antennas of various geometries are calculated using the method of physical optics and solution of the model scattering problem for a dielectric layer on a conducting substrate. It is shown that the proposed method of calculation provides a good agreement with experimental results.","PeriodicalId":283310,"journal":{"name":"2015 International Conference on Antenna Theory and Techniques (ICATT)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121228959","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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