Pub Date : 2020-09-24DOI: 10.1109/APEDE48864.2020.9255412
A. N. Rebrov, A. Grigoriev
The work describes a power microwave load with a bandwidth of 40 GHz. The load has silicon carbide (SiC) base and dissipated power of 50 W. The load has minor dimensions and simple, easy to produce construction. The temperature distribution on the surface of the resistive film is given.
{"title":"Power Microwave Load with 40 GHz Bandwidth","authors":"A. N. Rebrov, A. Grigoriev","doi":"10.1109/APEDE48864.2020.9255412","DOIUrl":"https://doi.org/10.1109/APEDE48864.2020.9255412","url":null,"abstract":"The work describes a power microwave load with a bandwidth of 40 GHz. The load has silicon carbide (SiC) base and dissipated power of 50 W. The load has minor dimensions and simple, easy to produce construction. The temperature distribution on the surface of the resistive film is given.","PeriodicalId":277559,"journal":{"name":"2020 International Conference on Actual Problems of Electron Devices Engineering (APEDE)","volume":"29 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":"116664043","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/APEDE48864.2020.9255546
S. Presnyakov, N. Kravchenko, A. Kasatkin, S. Mukhin
The subject of this work is the theoretical optimization of the design and dimensions of the coaxial-radial line (CRL) based on the program for calculating the dispersion characteristics of the CRL. The chosen CRL design allows optimizing the coupling resistance and dispersion of the slow-wave structure.
{"title":"Theoretical Analysis of Coaxial-Radial Type Slow-Wave Structure Electrodynamic Characteristics and Its Modifications","authors":"S. Presnyakov, N. Kravchenko, A. Kasatkin, S. Mukhin","doi":"10.1109/APEDE48864.2020.9255546","DOIUrl":"https://doi.org/10.1109/APEDE48864.2020.9255546","url":null,"abstract":"The subject of this work is the theoretical optimization of the design and dimensions of the coaxial-radial line (CRL) based on the program for calculating the dispersion characteristics of the CRL. The chosen CRL design allows optimizing the coupling resistance and dispersion of the slow-wave structure.","PeriodicalId":277559,"journal":{"name":"2020 International Conference on Actual Problems of Electron Devices Engineering (APEDE)","volume":"126 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":"121029611","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/APEDE48864.2020.9255530
M. Davidovich, A. Savin, Evgeniia A. Bogomolova
The main and higher modes of a retarding system of the comb type with a double shifted system of ridges having a step equal to the period d and a smaller step d/2 are studied. Dispersion, coupling resistance, and losses for several modes are calculated. The structure has a strongly expressed multimode character. The system is convenient for changing the operating mode by changing the anode voltage (beam speed).
{"title":"Investigation of Electromagnetic Wave Propagation in a Decelerating System of the «Double Two-Step Comb» Type","authors":"M. Davidovich, A. Savin, Evgeniia A. Bogomolova","doi":"10.1109/APEDE48864.2020.9255530","DOIUrl":"https://doi.org/10.1109/APEDE48864.2020.9255530","url":null,"abstract":"The main and higher modes of a retarding system of the comb type with a double shifted system of ridges having a step equal to the period d and a smaller step d/2 are studied. Dispersion, coupling resistance, and losses for several modes are calculated. The structure has a strongly expressed multimode character. The system is convenient for changing the operating mode by changing the anode voltage (beam speed).","PeriodicalId":277559,"journal":{"name":"2020 International Conference on Actual Problems of Electron Devices Engineering (APEDE)","volume":"115 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":"121378701","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/APEDE48864.2020.9255416
A. Oleynik, V. S. Andreev
This paper describes the technology for manufacturing nichrome and chromium films on mica substrates by thermal vacuum deposition. The thickness of these films controlled by a resistive method, which ensures the production of films with a thickness of ~10 nm. Experimental results of the study of absorption of film structures of nichrome-mica, chromium-mica in the frequency range of 75–260 GHz on the installation consisting of a vector analyzer of electrical circuits R&SZVA-40 by Rohde&Schwarz with the measuring channels. The dependence of the absorption coefficient of nichrome and chromium films at the level of 0.5 in the frequency ranges 102–110 GHz, 206.6-223.6 GHz and 102-116,6 GHz, 206-226,6 GHz, respectively, is obtained. It is advisable to use films as a millimeter radiation absorber.
{"title":"Absorption of NiCr and Cr Films in the Millimeter Wavelength Range","authors":"A. Oleynik, V. S. Andreev","doi":"10.1109/APEDE48864.2020.9255416","DOIUrl":"https://doi.org/10.1109/APEDE48864.2020.9255416","url":null,"abstract":"This paper describes the technology for manufacturing nichrome and chromium films on mica substrates by thermal vacuum deposition. The thickness of these films controlled by a resistive method, which ensures the production of films with a thickness of ~10 nm. Experimental results of the study of absorption of film structures of nichrome-mica, chromium-mica in the frequency range of 75–260 GHz on the installation consisting of a vector analyzer of electrical circuits R&SZVA-40 by Rohde&Schwarz with the measuring channels. The dependence of the absorption coefficient of nichrome and chromium films at the level of 0.5 in the frequency ranges 102–110 GHz, 206.6-223.6 GHz and 102-116,6 GHz, 206-226,6 GHz, respectively, is obtained. It is advisable to use films as a millimeter radiation absorber.","PeriodicalId":277559,"journal":{"name":"2020 International Conference on Actual Problems of Electron Devices Engineering (APEDE)","volume":"133 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":"115254918","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/APEDE48864.2020.9255487
Sergey V. Surkov, D. Komarov, Y. Paramonov, D. A. Kalashnikov, A. V. Matveev, Oleg M. Serov
This paper considers improvement of high-power waveguide load for microwave devices testing. 3d model of load is set up and simulated using the simulation system. Comparative characteristics of voltage standing-wave ratio before and after the improvement is provided. The results of experimental studies of voltage standing-wave ratio of waveguide are presented.
{"title":"High-Power Waveguide Load for Microwave Devices Testing","authors":"Sergey V. Surkov, D. Komarov, Y. Paramonov, D. A. Kalashnikov, A. V. Matveev, Oleg M. Serov","doi":"10.1109/APEDE48864.2020.9255487","DOIUrl":"https://doi.org/10.1109/APEDE48864.2020.9255487","url":null,"abstract":"This paper considers improvement of high-power waveguide load for microwave devices testing. 3d model of load is set up and simulated using the simulation system. Comparative characteristics of voltage standing-wave ratio before and after the improvement is provided. The results of experimental studies of voltage standing-wave ratio of waveguide are presented.","PeriodicalId":277559,"journal":{"name":"2020 International Conference on Actual Problems of Electron Devices Engineering (APEDE)","volume":"82 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":"122596298","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/APEDE48864.2020.9255599
A. Kirsha, R. Gaynutdinov, S. Chermoshentsev
This paper studies electromagnetic interference that occurs in the information communication lines of on-Board equipment under the influence of power lines of the generator. An approach to predicting the effect of electromagnetic interference from generator power lines on the functioning of onboard equipment is proposed. We consider an aircraft whose engine nacelle is made of a composite material. A practical example of predicting the effect of electromagnetic interference on the control device located in the internal space of the engine nacelle is considered.
{"title":"Investigation of the Influence of Electromagnetic Interference from Generator Power Lines on the Equipment in the Engine Nacelle of an Aircraft","authors":"A. Kirsha, R. Gaynutdinov, S. Chermoshentsev","doi":"10.1109/APEDE48864.2020.9255599","DOIUrl":"https://doi.org/10.1109/APEDE48864.2020.9255599","url":null,"abstract":"This paper studies electromagnetic interference that occurs in the information communication lines of on-Board equipment under the influence of power lines of the generator. An approach to predicting the effect of electromagnetic interference from generator power lines on the functioning of onboard equipment is proposed. We consider an aircraft whose engine nacelle is made of a composite material. A practical example of predicting the effect of electromagnetic interference on the control device located in the internal space of the engine nacelle is considered.","PeriodicalId":277559,"journal":{"name":"2020 International Conference on Actual Problems of Electron Devices Engineering (APEDE)","volume":"56 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":"123892515","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/APEDE48864.2020.9255550
D. Letavin
Based on the study of miniaturization of the coupler, the advantages of using slots to create conditions for additional miniaturization of the structure are considered. In this paper, we propose the implementation of a coupler which consists of a set of lines having high wave impedance and idle loop sets. Slit lines were added to the gaps between the loops, which made it possible to obtain a decrease in the operating frequency. The use of slots can be used to adjust the fabricated coupler.
{"title":"The Use of Slots as Part of a Compact Directional Coupler","authors":"D. Letavin","doi":"10.1109/APEDE48864.2020.9255550","DOIUrl":"https://doi.org/10.1109/APEDE48864.2020.9255550","url":null,"abstract":"Based on the study of miniaturization of the coupler, the advantages of using slots to create conditions for additional miniaturization of the structure are considered. In this paper, we propose the implementation of a coupler which consists of a set of lines having high wave impedance and idle loop sets. Slit lines were added to the gaps between the loops, which made it possible to obtain a decrease in the operating frequency. The use of slots can be used to adjust the fabricated coupler.","PeriodicalId":277559,"journal":{"name":"2020 International Conference on Actual Problems of Electron Devices Engineering (APEDE)","volume":"3 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":"124231181","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/APEDE48864.2020.9255510
S. Zhuravlev, Michail Manzhosin, V. Shesterkin, P. Shalaev, D. Kirichenko
The results of experimental studies of multiple-beam Ku-band klystron with a pyrolytic graphite shadow grid and klystron of the same type with a hafnium shadow grid are presented. The high antiemissive properties of pyrolytic graphite give a decrease in the thermionic current from 15–30 mA to zero compared to the hafnium grid. This allowed for stable operation of the klystron at lower values of the off-duty ratio compared to the klystron with a hafnium shadow grid.
{"title":"Study of Miniature Ku-Band Multiple-Beam Klystron with Built-in Shadow Grid of High-Density Pyrolytic Graphite","authors":"S. Zhuravlev, Michail Manzhosin, V. Shesterkin, P. Shalaev, D. Kirichenko","doi":"10.1109/APEDE48864.2020.9255510","DOIUrl":"https://doi.org/10.1109/APEDE48864.2020.9255510","url":null,"abstract":"The results of experimental studies of multiple-beam Ku-band klystron with a pyrolytic graphite shadow grid and klystron of the same type with a hafnium shadow grid are presented. The high antiemissive properties of pyrolytic graphite give a decrease in the thermionic current from 15–30 mA to zero compared to the hafnium grid. This allowed for stable operation of the klystron at lower values of the off-duty ratio compared to the klystron with a hafnium shadow grid.","PeriodicalId":277559,"journal":{"name":"2020 International Conference on Actual Problems of Electron Devices Engineering (APEDE)","volume":"47 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":"126415375","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/APEDE48864.2020.9255600
Mazinov Alim Seit-Ametovich, Tyutyunik Andrey Sergeevich, Gurchenko Vladimir Sergeevich, Fitaev Ibraim Shevchetovich, V. V. Maksimovich
This article presents the comparative characteristics of the transmission and reflection spectra of electromagnetic radiation of thin carbon and metal films in the frequency range 8.2-12.0 GHz. The distinctive features of each of the methods for producing the studied fullerene and aluminum thin films are shown. The analysis of profilograms and the general 3D topology of the surface of the obtained films by atomic force microscopy is carried out. A comparative analysis of the interaction of microwave electromagnetic radiation with the materials under study is given. Additionally, the conductive properties of the obtained thin films are presented and described.
{"title":"Absorbing and Conductive Properties of Thin Fullerene and Aluminum Films","authors":"Mazinov Alim Seit-Ametovich, Tyutyunik Andrey Sergeevich, Gurchenko Vladimir Sergeevich, Fitaev Ibraim Shevchetovich, V. V. Maksimovich","doi":"10.1109/APEDE48864.2020.9255600","DOIUrl":"https://doi.org/10.1109/APEDE48864.2020.9255600","url":null,"abstract":"This article presents the comparative characteristics of the transmission and reflection spectra of electromagnetic radiation of thin carbon and metal films in the frequency range 8.2-12.0 GHz. The distinctive features of each of the methods for producing the studied fullerene and aluminum thin films are shown. The analysis of profilograms and the general 3D topology of the surface of the obtained films by atomic force microscopy is carried out. A comparative analysis of the interaction of microwave electromagnetic radiation with the materials under study is given. Additionally, the conductive properties of the obtained thin films are presented and described.","PeriodicalId":277559,"journal":{"name":"2020 International Conference on Actual Problems of Electron Devices Engineering (APEDE)","volume":"3 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":"114431069","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/APEDE48864.2020.9255528
I. Kulikova
Two methods for simulation the motion of electron flows in vacuum, considering the thermal spread of velocities and space charge are presented. The first one is based on the numerical solution of the Vlasov-Poisson equations using the finite volume method, and the second is based on a particle-in-cell approach in phase space. Both methods were tested on a one-dimensional vacuum diode. The calculated current-voltage characteristics of the diode are in good agreement with each other, and with space-charge limited currents, predicted by Child-Langmuir law. These methods allowed us to study near-emitter region considering electrons thermal velocity spread, and space charge cloud, and to calculate the cut off voltage. The advantages and disadvantages of both methods are also discussed.
{"title":"Methods of Electronic Optics Simulation Based on Numerical Solving the Vlasov-Poisson Equation","authors":"I. Kulikova","doi":"10.1109/APEDE48864.2020.9255528","DOIUrl":"https://doi.org/10.1109/APEDE48864.2020.9255528","url":null,"abstract":"Two methods for simulation the motion of electron flows in vacuum, considering the thermal spread of velocities and space charge are presented. The first one is based on the numerical solution of the Vlasov-Poisson equations using the finite volume method, and the second is based on a particle-in-cell approach in phase space. Both methods were tested on a one-dimensional vacuum diode. The calculated current-voltage characteristics of the diode are in good agreement with each other, and with space-charge limited currents, predicted by Child-Langmuir law. These methods allowed us to study near-emitter region considering electrons thermal velocity spread, and space charge cloud, and to calculate the cut off voltage. The advantages and disadvantages of both methods are also discussed.","PeriodicalId":277559,"journal":{"name":"2020 International Conference on Actual Problems of Electron Devices Engineering (APEDE)","volume":"14 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":"115045118","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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