Pub Date : 2014-11-20DOI: 10.1109/CRMICO.2014.6959427
L. Averina, A. A. Maljutin, D. Merkulov, V. J. Doroshenko
Experimental results are presented, on their basis the HF (high frequency) cooperative MIMO system channel capacity estimation was carried out. MIMO channel modeling results are also presented, they are obtained using correlative, Kronecker, Weichselberger models. Channel capacity was calculated for the following cases: SISO, MIMO 2×2. The calculated characteristics are compared with the corresponding ones obtained from the experimental data. Conclusions about effectiveness of cooperative MIMO method application in HF communication system are made.
给出了实验结果，并在此基础上对高频(高频)协同MIMO系统信道容量进行了估计。同时给出了MIMO信道的建模结果，这些结果是使用相关的Kronecker和Weichselberger模型得到的。信道容量计算了以下情况:SISO, MIMO 2×2。将计算得到的特性与实验数据进行了比较。总结了协同MIMO方法在高频通信系统中的应用效果。
{"title":"Study of cooperative MIMO method effectiveness for HF communication system","authors":"L. Averina, A. A. Maljutin, D. Merkulov, V. J. Doroshenko","doi":"10.1109/CRMICO.2014.6959427","DOIUrl":"https://doi.org/10.1109/CRMICO.2014.6959427","url":null,"abstract":"Experimental results are presented, on their basis the HF (high frequency) cooperative MIMO system channel capacity estimation was carried out. MIMO channel modeling results are also presented, they are obtained using correlative, Kronecker, Weichselberger models. Channel capacity was calculated for the following cases: SISO, MIMO 2×2. The calculated characteristics are compared with the corresponding ones obtained from the experimental data. Conclusions about effectiveness of cooperative MIMO method application in HF communication system are made.","PeriodicalId":6662,"journal":{"name":"2014 24th International Crimean Conference Microwave & Telecommunication Technology","volume":"29 1","pages":"350-351"},"PeriodicalIF":0.0,"publicationDate":"2014-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79289392","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}
Pub Date : 2014-11-20DOI: 10.1109/CRMICO.2014.6959689
A. V. Badin, G. Dunaevskii
The present paper concerns the possibility of studying of weak anisotropic media, which is based on the use of open microwave resonator with a measuring hole in one of the mirrors. This approach is allowed providing the locality of observations, the high sensitivity to small variations of the reflected signal, the opportunity to explore the materials with high absorption. The use of quasi-optical resonator does not practically limit the frequency field of studies. The model of the open resonator with an inhomogeneous radius mirror, being used to describe the sensitivity of this method, is quantitatively allowed estimating the influence of geometric factors of the resonator and optimizing them for different requirements on local measurements, for the reflectivity of the objects under study, for frequency sensing.
{"title":"Optimization of resonator for local quasi-optical SHF and EHF diagnostics of inhomogenious materials anisotropy","authors":"A. V. Badin, G. Dunaevskii","doi":"10.1109/CRMICO.2014.6959689","DOIUrl":"https://doi.org/10.1109/CRMICO.2014.6959689","url":null,"abstract":"The present paper concerns the possibility of studying of weak anisotropic media, which is based on the use of open microwave resonator with a measuring hole in one of the mirrors. This approach is allowed providing the locality of observations, the high sensitivity to small variations of the reflected signal, the opportunity to explore the materials with high absorption. The use of quasi-optical resonator does not practically limit the frequency field of studies. The model of the open resonator with an inhomogeneous radius mirror, being used to describe the sensitivity of this method, is quantitatively allowed estimating the influence of geometric factors of the resonator and optimizing them for different requirements on local measurements, for the reflectivity of the objects under study, for frequency sensing.","PeriodicalId":6662,"journal":{"name":"2014 24th International Crimean Conference Microwave & Telecommunication Technology","volume":"69 1","pages":"910-911"},"PeriodicalIF":0.0,"publicationDate":"2014-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84456680","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}
Pub Date : 2014-11-20DOI: 10.1109/CRMICO.2014.6959602
A. G. Bykov, A. Kitova, V. Kolesov, A. Reshetilov, A. Yaropolov
The present paper concerns the activity of the microbic biofuel element which oxidizes ethanol. The intact bacterial cells of Gluconobacter oxydans or their membrane fractions were used as a bioelectrocatalyst. Thermoexpanded graphite (TEG) was used as a material of an electrode. The used strain of bacterial cells, as well as carbon composition types will make a basis of a prototype of a microbic biofuel element at development of the block of transformation and accumulation of electric energy.
{"title":"The use of nanocarbon materials for development of biofuel elements","authors":"A. G. Bykov, A. Kitova, V. Kolesov, A. Reshetilov, A. Yaropolov","doi":"10.1109/CRMICO.2014.6959602","DOIUrl":"https://doi.org/10.1109/CRMICO.2014.6959602","url":null,"abstract":"The present paper concerns the activity of the microbic biofuel element which oxidizes ethanol. The intact bacterial cells of Gluconobacter oxydans or their membrane fractions were used as a bioelectrocatalyst. Thermoexpanded graphite (TEG) was used as a material of an electrode. The used strain of bacterial cells, as well as carbon composition types will make a basis of a prototype of a microbic biofuel element at development of the block of transformation and accumulation of electric energy.","PeriodicalId":6662,"journal":{"name":"2014 24th International Crimean Conference Microwave & Telecommunication Technology","volume":"1 1","pages":"722-723"},"PeriodicalIF":0.0,"publicationDate":"2014-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84709775","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}
Pub Date : 2014-11-20DOI: 10.1109/CRMICO.2014.6959763
M. L. Ishchenko, D. Morozov, R. A. Kolomiiets, V. P. Manoilov
The present paper concerns the possibility to use the microwave method to localize tumours by means of the combined horn antennas with dielectric resonator. Application of metal plates around the dielectric resonator allows adjusting the radiation pattern of antennas and VSWR. VSWR, S-parameters, chart orientation and interaction with multilayer dielectrics are simulated.
{"title":"Application of a combined horn antenna with a dielectric resonator for allocation of new formations","authors":"M. L. Ishchenko, D. Morozov, R. A. Kolomiiets, V. P. Manoilov","doi":"10.1109/CRMICO.2014.6959763","DOIUrl":"https://doi.org/10.1109/CRMICO.2014.6959763","url":null,"abstract":"The present paper concerns the possibility to use the microwave method to localize tumours by means of the combined horn antennas with dielectric resonator. Application of metal plates around the dielectric resonator allows adjusting the radiation pattern of antennas and VSWR. VSWR, S-parameters, chart orientation and interaction with multilayer dielectrics are simulated.","PeriodicalId":6662,"journal":{"name":"2014 24th International Crimean Conference Microwave & Telecommunication Technology","volume":"48 1","pages":"1067-1068"},"PeriodicalIF":0.0,"publicationDate":"2014-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84732590","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}
Pub Date : 2014-11-20DOI: 10.1109/CRMICO.2014.6959653
S. Kurkin, A. Rak, A. A. Kuraev, A. Koronovskii, A. Hramov
Mechanisms leading to the microwave generation breakdown and to the corresponding microwave impulse shortening in the relativistic virtode have been investigated with the help of CST Particle Studio. It has been discovered that this breakdown is conditioned by the qualitative change of beam dynamics during the process of the suppression of generation in the system. Obtained results is principally important because it may help in the long term to solve the problem of a microwave radiation impulse lengthening and, hence, the efficiency increasing of relativistic virtode. The optimization of virtode geometrical parameters (cathode-anode distance, cathode radius, feedback window size, plunger positions et al.) was carried out with the help of CST Particle Studio optimizer in order to maximize the efficiency of the device in a single-mode regime.
{"title":"Study of relativistic virtode in CST Particle Studio","authors":"S. Kurkin, A. Rak, A. A. Kuraev, A. Koronovskii, A. Hramov","doi":"10.1109/CRMICO.2014.6959653","DOIUrl":"https://doi.org/10.1109/CRMICO.2014.6959653","url":null,"abstract":"Mechanisms leading to the microwave generation breakdown and to the corresponding microwave impulse shortening in the relativistic virtode have been investigated with the help of CST Particle Studio. It has been discovered that this breakdown is conditioned by the qualitative change of beam dynamics during the process of the suppression of generation in the system. Obtained results is principally important because it may help in the long term to solve the problem of a microwave radiation impulse lengthening and, hence, the efficiency increasing of relativistic virtode. The optimization of virtode geometrical parameters (cathode-anode distance, cathode radius, feedback window size, plunger positions et al.) was carried out with the help of CST Particle Studio optimizer in order to maximize the efficiency of the device in a single-mode regime.","PeriodicalId":6662,"journal":{"name":"2014 24th International Crimean Conference Microwave & Telecommunication Technology","volume":"11 1","pages":"833-834"},"PeriodicalIF":0.0,"publicationDate":"2014-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81858907","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}
Pub Date : 2014-11-20DOI: 10.1109/CRMICO.2014.6959617
M. Davidovich
The hyperbolic metamaterials in the form of a long (infinite) metal pins in the background dielectric and plane-layered metal-dielectric heterostructures have been considered. The method of integral equations (volume and surface) and the method of transfer matrix for layered structures have been applied for analysis. The modifications of the transfer matrix method for periodic and quasiperiodic structures transfer matrices are presented. The solutions of the dispersion equations and the diffraction problems for finite structures are obtained. Hyperbolic dispersion law is considered in the case of the losses in the metal. In this case, there is a limit on the modulus of the wave vector. It is shown that in the structures the waves of infrared and terahertz bands propagate along the pins or layers with low losses and speed, not much different from the speed of light. Transverse to the layers waves are strongly reflected, and the structure is a thermal screen.
{"title":"Properties of ROD and plane-layered hyperbolic metamaterials","authors":"M. Davidovich","doi":"10.1109/CRMICO.2014.6959617","DOIUrl":"https://doi.org/10.1109/CRMICO.2014.6959617","url":null,"abstract":"The hyperbolic metamaterials in the form of a long (infinite) metal pins in the background dielectric and plane-layered metal-dielectric heterostructures have been considered. The method of integral equations (volume and surface) and the method of transfer matrix for layered structures have been applied for analysis. The modifications of the transfer matrix method for periodic and quasiperiodic structures transfer matrices are presented. The solutions of the dispersion equations and the diffraction problems for finite structures are obtained. Hyperbolic dispersion law is considered in the case of the losses in the metal. In this case, there is a limit on the modulus of the wave vector. It is shown that in the structures the waves of infrared and terahertz bands propagate along the pins or layers with low losses and speed, not much different from the speed of light. Transverse to the layers waves are strongly reflected, and the structure is a thermal screen.","PeriodicalId":6662,"journal":{"name":"2014 24th International Crimean Conference Microwave & Telecommunication Technology","volume":"30 1","pages":"756-757"},"PeriodicalIF":0.0,"publicationDate":"2014-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83834411","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}
Pub Date : 2014-11-20DOI: 10.1109/CRMICO.2014.6959423
M. Alieksieiev, O. Maiboroda, A. Onysko, O. Alekseev
The present paper concerns the proposed approach to planning recurring tasks in grid systems of personal computers, which have a heterogeneous dynamically changing architecture.
本文关注的是在具有异构动态变化体系结构的个人计算机网格系统中规划重复任务的方法。
{"title":"Repeating tasks scheduling in desktop grid systems","authors":"M. Alieksieiev, O. Maiboroda, A. Onysko, O. Alekseev","doi":"10.1109/CRMICO.2014.6959423","DOIUrl":"https://doi.org/10.1109/CRMICO.2014.6959423","url":null,"abstract":"The present paper concerns the proposed approach to planning recurring tasks in grid systems of personal computers, which have a heterogeneous dynamically changing architecture.","PeriodicalId":6662,"journal":{"name":"2014 24th International Crimean Conference Microwave & Telecommunication Technology","volume":"6 1","pages":"342-343"},"PeriodicalIF":0.0,"publicationDate":"2014-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80503689","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}
Pub Date : 2014-11-20DOI: 10.1109/CRMICO.2014.6959571
N. N. Kisel, S. Grishchenko, D. S. Derachits
The feature of the phase shifter under study is a set of identical connected cascades in T-scheme. The results of numerical modeling are presented. The studied device is optimized for S-parameters in the frequency range; phase and amplitude characteristics of return loss and insertion loss are investigated. Thus, the possibility of modeling of a microwave module of an analog phase shifter based on a two-port cascade connection, is shown. The results of numerical simulation of multi-cascade analog phase shifters based on the elements with controlled capacity. These experimental frequency characteristics of the phase shifter produced on the basis of numerical modeling results are fully agreed with the calculated data.
{"title":"Simulation of an analog phase shifter","authors":"N. N. Kisel, S. Grishchenko, D. S. Derachits","doi":"10.1109/CRMICO.2014.6959571","DOIUrl":"https://doi.org/10.1109/CRMICO.2014.6959571","url":null,"abstract":"The feature of the phase shifter under study is a set of identical connected cascades in T-scheme. The results of numerical modeling are presented. The studied device is optimized for S-parameters in the frequency range; phase and amplitude characteristics of return loss and insertion loss are investigated. Thus, the possibility of modeling of a microwave module of an analog phase shifter based on a two-port cascade connection, is shown. The results of numerical simulation of multi-cascade analog phase shifters based on the elements with controlled capacity. These experimental frequency characteristics of the phase shifter produced on the basis of numerical modeling results are fully agreed with the calculated data.","PeriodicalId":6662,"journal":{"name":"2014 24th International Crimean Conference Microwave & Telecommunication Technology","volume":"23 1","pages":"653-654"},"PeriodicalIF":0.0,"publicationDate":"2014-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77760772","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}
Pub Date : 2014-11-20DOI: 10.1109/CRMICO.2014.6959779
A. M. Gokov, O. F. Tyrnov
There are given and analyzed the main features of the model distribution of the height-temporal variations of the electron collisions with neutral molecules in the undisturbed midlatitude D-region of the ionosphere, obtained through long-time systematic experimental studies near Kharkov and episodic purposeful observation near Volgograd performed by the partial reflection and rocket methods.
{"title":"Modeling of the electron-molecule collision frequency variations in the undisturbed midlatitude D-region on the experimental basis","authors":"A. M. Gokov, O. F. Tyrnov","doi":"10.1109/CRMICO.2014.6959779","DOIUrl":"https://doi.org/10.1109/CRMICO.2014.6959779","url":null,"abstract":"There are given and analyzed the main features of the model distribution of the height-temporal variations of the electron collisions with neutral molecules in the undisturbed midlatitude D-region of the ionosphere, obtained through long-time systematic experimental studies near Kharkov and episodic purposeful observation near Volgograd performed by the partial reflection and rocket methods.","PeriodicalId":6662,"journal":{"name":"2014 24th International Crimean Conference Microwave & Telecommunication Technology","volume":"135 1","pages":"1099-1100"},"PeriodicalIF":0.0,"publicationDate":"2014-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89239370","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}
Pub Date : 2014-11-20DOI: 10.1109/CRMICO.2014.6959810
A. K. Sorokin, V. Vazhenin, V. V. Shalgin
The determination algorithm of underlying surfaces by pulse altimeter signals is described. The algorithm basis is the principle of comparison of reference standard distributions with a current posteriori distribution of a reflected signal's echo amplitude. As the result of comparison of statistical distributions a posteriori evaluation of correct discrimination is formed. The maximum of a posteriori probability has its own minimum in case of detected crossing of underlying surfaces border. It allows forming the evaluation of underlying surfaces border position.
{"title":"Determination algorithm of underlying surfaces border position by pulse altimeter signals","authors":"A. K. Sorokin, V. Vazhenin, V. V. Shalgin","doi":"10.1109/CRMICO.2014.6959810","DOIUrl":"https://doi.org/10.1109/CRMICO.2014.6959810","url":null,"abstract":"The determination algorithm of underlying surfaces by pulse altimeter signals is described. The algorithm basis is the principle of comparison of reference standard distributions with a current posteriori distribution of a reflected signal's echo amplitude. As the result of comparison of statistical distributions a posteriori evaluation of correct discrimination is formed. The maximum of a posteriori probability has its own minimum in case of detected crossing of underlying surfaces border. It allows forming the evaluation of underlying surfaces border position.","PeriodicalId":6662,"journal":{"name":"2014 24th International Crimean Conference Microwave & Telecommunication Technology","volume":"6 1","pages":"1163-1164"},"PeriodicalIF":0.0,"publicationDate":"2014-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89374803","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}
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