Pub Date : 2020-09-24DOI: 10.1109/APEDE48864.2020.9255561
E. Mirgorodskaya, Vadim A. Kolchev, N. Mityashin, Yu. B. Tomashevskiy, Raad Alkaravi, Y. Golembiovsky
The paper presents the multicriteria choice problem of inverter module for frequency converters in autonomous power supply systems, including microgrid. Criteria of efficiency of converters for such systems are distinguished, values of which are mainly determined by the choice of the inverter module. These criteria are used to compare main classes of inverter modules: current inverters, voltage inverters with multiple pulse width modulation and multilevel formation of the output curve. Formulated directions of improving inverters with a multilevel formation of the output curve allow to increase their competitiveness in comparison with inverters of other specified classes, when they used in autonomous power supply systems.
{"title":"Selection of Inverter Modules for Converters in Autonomous Power Supply Systems","authors":"E. Mirgorodskaya, Vadim A. Kolchev, N. Mityashin, Yu. B. Tomashevskiy, Raad Alkaravi, Y. Golembiovsky","doi":"10.1109/APEDE48864.2020.9255561","DOIUrl":"https://doi.org/10.1109/APEDE48864.2020.9255561","url":null,"abstract":"The paper presents the multicriteria choice problem of inverter module for frequency converters in autonomous power supply systems, including microgrid. Criteria of efficiency of converters for such systems are distinguished, values of which are mainly determined by the choice of the inverter module. These criteria are used to compare main classes of inverter modules: current inverters, voltage inverters with multiple pulse width modulation and multilevel formation of the output curve. Formulated directions of improving inverters with a multilevel formation of the output curve allow to increase their competitiveness in comparison with inverters of other specified classes, when they used in autonomous power supply systems.","PeriodicalId":277559,"journal":{"name":"2020 International Conference on Actual Problems of Electron Devices Engineering (APEDE)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132799557","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 : 2020-09-24DOI: 10.1109/apede48864.2020.9255564
{"title":"Materials of the International Scientific and Technical Conference","authors":"","doi":"10.1109/apede48864.2020.9255564","DOIUrl":"https://doi.org/10.1109/apede48864.2020.9255564","url":null,"abstract":"","PeriodicalId":277559,"journal":{"name":"2020 International Conference on Actual Problems of Electron Devices Engineering (APEDE)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115205433","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 : 2020-09-24DOI: 10.1109/APEDE48864.2020.9255615
D. Komarov, D. A. Kalashnikov, Oleg M. Serov, Y. Paramonov, Sergey V. Surkov
The results of calculating the S-parameters of a coaxial magnetron are presented. The results of modeling the dynamic mode of interaction of the electron beam with the RF field are presented. The effect of surface and volume absorbers on the operation of a coaxial magnetron is estimated. The simulation results are compared with experimental data.
{"title":"The Effect of Absorbers on the Operation of a Coaxial Magnetron","authors":"D. Komarov, D. A. Kalashnikov, Oleg M. Serov, Y. Paramonov, Sergey V. Surkov","doi":"10.1109/APEDE48864.2020.9255615","DOIUrl":"https://doi.org/10.1109/APEDE48864.2020.9255615","url":null,"abstract":"The results of calculating the S-parameters of a coaxial magnetron are presented. The results of modeling the dynamic mode of interaction of the electron beam with the RF field are presented. The effect of surface and volume absorbers on the operation of a coaxial magnetron is estimated. The simulation results are compared with experimental data.","PeriodicalId":277559,"journal":{"name":"2020 International Conference on Actual Problems of Electron Devices Engineering (APEDE)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122957988","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 : 2020-09-24DOI: 10.1109/APEDE48864.2020.9255520
M. M. Melnikova, Arina A. Rodina, A. Rozhnev, N. Ryskin
The method for calculation of start-oscillation conditions based on the stationary theory of a gyrotron with non-fixed (self-consistent) axial profile of the RF field is described. The calculations of start-oscillation currents and start-oscillation frequencies are presented for the 0.4-THz second-harmonic gyrotron with delayed reflections from the remote load at different parameters of the reflected signal. Increase of the reflection magnitude leads to increase of the number of oscillation zones observed at fixed beam current and, thus, to is extension of the frequency tunability range.
{"title":"Self-Consistent Calculation of Start-Oscillation Conditions in a Gyrotron with Reflections","authors":"M. M. Melnikova, Arina A. Rodina, A. Rozhnev, N. Ryskin","doi":"10.1109/APEDE48864.2020.9255520","DOIUrl":"https://doi.org/10.1109/APEDE48864.2020.9255520","url":null,"abstract":"The method for calculation of start-oscillation conditions based on the stationary theory of a gyrotron with non-fixed (self-consistent) axial profile of the RF field is described. The calculations of start-oscillation currents and start-oscillation frequencies are presented for the 0.4-THz second-harmonic gyrotron with delayed reflections from the remote load at different parameters of the reflected signal. Increase of the reflection magnitude leads to increase of the number of oscillation zones observed at fixed beam current and, thus, to is extension of the frequency tunability range.","PeriodicalId":277559,"journal":{"name":"2020 International Conference on Actual Problems of Electron Devices Engineering (APEDE)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121643975","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 : 2020-09-24DOI: 10.1109/APEDE48864.2020.9255508
A. Darmaev, A. Ivanov, S. Morev, Andrey Suhoverhiy
The paper considers one of the design options for an electron-optical system (EOS) for a low-voltage compact Ka-band traveling wave tube (TWT) with a periodic permanent magnet focusing system (PPM).
{"title":"Development of an Electron-Optical System for Compact Ka-Band TWT","authors":"A. Darmaev, A. Ivanov, S. Morev, Andrey Suhoverhiy","doi":"10.1109/APEDE48864.2020.9255508","DOIUrl":"https://doi.org/10.1109/APEDE48864.2020.9255508","url":null,"abstract":"The paper considers one of the design options for an electron-optical system (EOS) for a low-voltage compact Ka-band traveling wave tube (TWT) with a periodic permanent magnet focusing system (PPM).","PeriodicalId":277559,"journal":{"name":"2020 International Conference on Actual Problems of Electron Devices Engineering (APEDE)","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121889402","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 : 2020-09-24DOI: 10.1109/APEDE48864.2020.9255415
V. Komarov, A. Korchagin, V. P. Meschanov
The C-band adapter for matching standard coaxial line and rectangular waveguide with reduced height is simulated numerically. The proposed design of this adapter provides high power transmission what can be useful in some applications. Numerical modeling shows that developed adapter exhibits a voltage standing wave ratio less than 1,2 with an insertion loss of 0,1 dB in the frequency range from 4,5 GHz to 7,5 GHz.
{"title":"Broad-Band Coaxial-to-Waveguide Transition","authors":"V. Komarov, A. Korchagin, V. P. Meschanov","doi":"10.1109/APEDE48864.2020.9255415","DOIUrl":"https://doi.org/10.1109/APEDE48864.2020.9255415","url":null,"abstract":"The C-band adapter for matching standard coaxial line and rectangular waveguide with reduced height is simulated numerically. The proposed design of this adapter provides high power transmission what can be useful in some applications. Numerical modeling shows that developed adapter exhibits a voltage standing wave ratio less than 1,2 with an insertion loss of 0,1 dB in the frequency range from 4,5 GHz to 7,5 GHz.","PeriodicalId":277559,"journal":{"name":"2020 International Conference on Actual Problems of Electron Devices Engineering (APEDE)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131204822","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 : 2020-09-24DOI: 10.1109/APEDE48864.2020.9255488
L. Hung
This work is devoted to the development of a miniature directional coupler with a wide passband for maritime communications equipment. Artificial transmission lines having similar characteristics with quarter-wave segments, of which the directional coupler consists, are considered. Based on the calculations, a miniature coupler was modeled. Based on the simulation results, it can be judged that a working model of the device with an area of 70% less than with a traditional design was obtained. The miniature coupler is assembled for a frequency of 0.9 GHz and has a band of 67.5%. The relevance of the development is confirmed by the increased demand for compact microwave devices.
{"title":"Equal Power Division Directional Coupler and Compact Dimensions in Modern Maritime Communications","authors":"L. Hung","doi":"10.1109/APEDE48864.2020.9255488","DOIUrl":"https://doi.org/10.1109/APEDE48864.2020.9255488","url":null,"abstract":"This work is devoted to the development of a miniature directional coupler with a wide passband for maritime communications equipment. Artificial transmission lines having similar characteristics with quarter-wave segments, of which the directional coupler consists, are considered. Based on the calculations, a miniature coupler was modeled. Based on the simulation results, it can be judged that a working model of the device with an area of 70% less than with a traditional design was obtained. The miniature coupler is assembled for a frequency of 0.9 GHz and has a band of 67.5%. The relevance of the development is confirmed by the increased demand for compact microwave devices.","PeriodicalId":277559,"journal":{"name":"2020 International Conference on Actual Problems of Electron Devices Engineering (APEDE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129785576","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 : 2020-09-24DOI: 10.1109/APEDE48864.2020.9255651
A. Volosova, I.A. Almaev, A. Danilov, A. Miroshnichenko
The article is devoted to the problems associated with the development of powerful traveling wave tube - heat removal from highly loaded elements. The article describes the increase in the heat dissipation capacity in spiral decelerating TWT systems. Various methods of fastening spiral pipes using ceramic support rods have been investigated. The heat dissipation capacity of the resulting structure is estimated.
{"title":"Investigation of Solid-Phase Connection Technologies and Assessment of the Heat Dissipation Capacity of the SWS TWT Centimeter Range","authors":"A. Volosova, I.A. Almaev, A. Danilov, A. Miroshnichenko","doi":"10.1109/APEDE48864.2020.9255651","DOIUrl":"https://doi.org/10.1109/APEDE48864.2020.9255651","url":null,"abstract":"The article is devoted to the problems associated with the development of powerful traveling wave tube - heat removal from highly loaded elements. The article describes the increase in the heat dissipation capacity in spiral decelerating TWT systems. Various methods of fastening spiral pipes using ceramic support rods have been investigated. The heat dissipation capacity of the resulting structure is estimated.","PeriodicalId":277559,"journal":{"name":"2020 International Conference on Actual Problems of Electron Devices Engineering (APEDE)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130145666","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 : 2020-09-24DOI: 10.1109/APEDE48864.2020.9255517
A. Baikov, O. Baikova
Optimization methods for multiparametric systems with a distributed global extremum are considered. A typical example of such a system is a multi-cavity klystron. It is shown that optimization of multiple-cavity klystron can be successfully performed by the macrostep method. The results of optimization of klystrons with extreme efficiency values and gain bands are presented. The possibilities of development of the macrostep method are considered. The problem of forming a uniform discrete neighborhood of a point in a multidimensional space for the formation of a hyperspheric working area is considered. Options for solving this problem are given.
{"title":"On Optimization of Multiparametric Systems with Distributed Global Extremum","authors":"A. Baikov, O. Baikova","doi":"10.1109/APEDE48864.2020.9255517","DOIUrl":"https://doi.org/10.1109/APEDE48864.2020.9255517","url":null,"abstract":"Optimization methods for multiparametric systems with a distributed global extremum are considered. A typical example of such a system is a multi-cavity klystron. It is shown that optimization of multiple-cavity klystron can be successfully performed by the macrostep method. The results of optimization of klystrons with extreme efficiency values and gain bands are presented. The possibilities of development of the macrostep method are considered. The problem of forming a uniform discrete neighborhood of a point in a multidimensional space for the formation of a hyperspheric working area is considered. Options for solving this problem are given.","PeriodicalId":277559,"journal":{"name":"2020 International Conference on Actual Problems of Electron Devices Engineering (APEDE)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131411885","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 : 2020-09-24DOI: 10.1109/APEDE48864.2020.9255536
V. Baiburin
The majority of simulation in various fields like radio engineering, electronics, etc.) are based on PDE, in particular, the Laplace, Poisson equations, the wave equation, the equation of thermal conductivity, etc., which are the basis for the development of mathematical models. It is known that the efficiency of used mathematical models is determined by the speed and adequacy of numerical solutions of these equations. An approach that does not require solving the systems of equations and allows a parallel implementation of the numerical solution, which eventually leads to faster calculations in comparison with the known methods, is proposed.
{"title":"Basics of Ultra-Fast Numerical Solution of Some Differential Equations of Mathematical Physics","authors":"V. Baiburin","doi":"10.1109/APEDE48864.2020.9255536","DOIUrl":"https://doi.org/10.1109/APEDE48864.2020.9255536","url":null,"abstract":"The majority of simulation in various fields like radio engineering, electronics, etc.) are based on PDE, in particular, the Laplace, Poisson equations, the wave equation, the equation of thermal conductivity, etc., which are the basis for the development of mathematical models. It is known that the efficiency of used mathematical models is determined by the speed and adequacy of numerical solutions of these equations. An approach that does not require solving the systems of equations and allows a parallel implementation of the numerical solution, which eventually leads to faster calculations in comparison with the known methods, is proposed.","PeriodicalId":277559,"journal":{"name":"2020 International Conference on Actual Problems of Electron Devices Engineering (APEDE)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131824790","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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