Pub Date : 2018-10-01DOI: 10.1109/EEXPOLYTECH.2018.8564442
N. Ivanov, A. Korotkov
In this paper, a new approach to bandpass filter design, based on coupling coefficients calculation, introduced in [1], is experimentally verified. S-band (2.7–3.1 GHz bandwidth) microstrip bandpass filters of several four-resonator structures for pre-selectors of active phase array radar systems are designed, produced and measured. A conventional parallel-coupled filter is produced and measured for comparison. Measurement results confirm good performance of used approach.
{"title":"S-Band Microstrip Bandpass Filter Design Based on New Approach to Coupling Coefficients Calculation","authors":"N. Ivanov, A. Korotkov","doi":"10.1109/EEXPOLYTECH.2018.8564442","DOIUrl":"https://doi.org/10.1109/EEXPOLYTECH.2018.8564442","url":null,"abstract":"In this paper, a new approach to bandpass filter design, based on coupling coefficients calculation, introduced in [1], is experimentally verified. S-band (2.7–3.1 GHz bandwidth) microstrip bandpass filters of several four-resonator structures for pre-selectors of active phase array radar systems are designed, produced and measured. A conventional parallel-coupled filter is produced and measured for comparison. Measurement results confirm good performance of used approach.","PeriodicalId":296618,"journal":{"name":"2018 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"329 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114371949","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 : 2018-10-01DOI: 10.1109/eexpolytech.2018.8564431
{"title":"Section 2: Algorithms & Signal Processing [breaker page]","authors":"","doi":"10.1109/eexpolytech.2018.8564431","DOIUrl":"https://doi.org/10.1109/eexpolytech.2018.8564431","url":null,"abstract":"","PeriodicalId":296618,"journal":{"name":"2018 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114974094","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 : 2018-10-01DOI: 10.1109/EEXPOLYTECH.2018.8564420
A. Ovsyannikova, S. Zavjalov, S. Volvenko
This work provides comparison of polar codes and turbo codes applicated to optimal Faster-than-Nyquist signals. The efficiency of the joint use of these coding techniques and optimal signals is estimated in terms of approaching the Shannon limit. For different cases, the minimum distance between the Shannon curve and the point which coordinates are the values of the spectral and energy efficiency is calculated. The use of polar codes allows to get closer to the Shannon limit of 11%. Compared to “classic” BPSK signals, optimal signals with polar coding come up with the gain about 86%.
{"title":"On The Joint Use of Optimal Faster Than Nyquist Signals with Polar and Turbo Codes","authors":"A. Ovsyannikova, S. Zavjalov, S. Volvenko","doi":"10.1109/EEXPOLYTECH.2018.8564420","DOIUrl":"https://doi.org/10.1109/EEXPOLYTECH.2018.8564420","url":null,"abstract":"This work provides comparison of polar codes and turbo codes applicated to optimal Faster-than-Nyquist signals. The efficiency of the joint use of these coding techniques and optimal signals is estimated in terms of approaching the Shannon limit. For different cases, the minimum distance between the Shannon curve and the point which coordinates are the values of the spectral and energy efficiency is calculated. The use of polar codes allows to get closer to the Shannon limit of 11%. Compared to “classic” BPSK signals, optimal signals with polar coding come up with the gain about 86%.","PeriodicalId":296618,"journal":{"name":"2018 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116286005","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 : 2018-10-01DOI: 10.1109/EEXPOLYTECH.2018.8564444
H. M. Al-Khafaji, H. Majdi
In this paper, the authors present a new network architecture based on the adaptation of small cells and millimeter wave (mm-wave) links for fifth-generation (5G) wireless backhaul networks. Besides, the throughput of 5G wireless backhaul networks is compared for several number of small cells, spectral efficiency (SE), and deployment scenarios. The results confirm that the proposed approach is high throughput solution compared to typical central and distribution network architectures.
{"title":"A High Throughput Architecture for 5G Wireless Backhaul Networks","authors":"H. M. Al-Khafaji, H. Majdi","doi":"10.1109/EEXPOLYTECH.2018.8564444","DOIUrl":"https://doi.org/10.1109/EEXPOLYTECH.2018.8564444","url":null,"abstract":"In this paper, the authors present a new network architecture based on the adaptation of small cells and millimeter wave (mm-wave) links for fifth-generation (5G) wireless backhaul networks. Besides, the throughput of 5G wireless backhaul networks is compared for several number of small cells, spectral efficiency (SE), and deployment scenarios. The results confirm that the proposed approach is high throughput solution compared to typical central and distribution network architectures.","PeriodicalId":296618,"journal":{"name":"2018 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124471263","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 : 2018-10-01DOI: 10.1109/EEXPOLYTECH.2018.8564408
E. Muratova, Vyacheslav Moshnikov, K. Chernyakova, I. Vrublevsky
The technology of polycrystalline anodic aluminum oxide (AAO) formation by high-temperature annealing of nanoporous alumina is described. Optical properties in the infrared (IR) spectral range are investigated. It has been revealed that nanoporous ceramics based on polycrystalline AAO has a wider bandwidth and higher transparency than aluminum oxide ceramic corundum (poycor). Analysis of various phases of AAO in the IR range showed that the transparency window widens with the increasing annealing temperature and shifts to the long-wave part of the spectrum: from $5.5 boldsymbol{mu} mathbf{m}$ for amorphous AAO to $5 mu mathrm{m}$ for polycrystalline AAO.
介绍了纳米多孔氧化铝高温退火制备多晶阳极氧化铝的工艺。研究了红外光谱范围内的光学特性。研究表明，基于多晶氧化铝的纳米孔陶瓷比氧化铝陶瓷刚玉具有更宽的带宽和更高的透明度。对AAO各相的红外光谱分析表明，随着退火温度的升高，透明窗口变宽，并向长波部分转移:从非晶AAO的$5.5 boldsymbol{mu} mathbf{m}$到多晶AAO的$5 mu mathbf{m}$。
{"title":"Optical Properties of Nanoporous Polycrystalline Anodic Alumina in the IR Region","authors":"E. Muratova, Vyacheslav Moshnikov, K. Chernyakova, I. Vrublevsky","doi":"10.1109/EEXPOLYTECH.2018.8564408","DOIUrl":"https://doi.org/10.1109/EEXPOLYTECH.2018.8564408","url":null,"abstract":"The technology of polycrystalline anodic aluminum oxide (AAO) formation by high-temperature annealing of nanoporous alumina is described. Optical properties in the infrared (IR) spectral range are investigated. It has been revealed that nanoporous ceramics based on polycrystalline AAO has a wider bandwidth and higher transparency than aluminum oxide ceramic corundum (poycor). Analysis of various phases of AAO in the IR range showed that the transparency window widens with the increasing annealing temperature and shifts to the long-wave part of the spectrum: from $5.5 boldsymbol{mu} mathbf{m}$ for amorphous AAO to $5 mu mathrm{m}$ for polycrystalline AAO.","PeriodicalId":296618,"journal":{"name":"2018 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"440 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125777855","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 : 2018-10-01DOI: 10.1109/EEXPOLYTECH.2018.8564381
D. I. Dolzhenko, V. Kapralova, N. Sudar
The dielectric properties of MIM-structures with Al2O3 dielectric layers obtained by ALD method have been studied. The breakdown field strength of these structures has been determined to be about 4.4 MV/cm in the linear voltage increase mode and to have virtually no dependence on the voltage increase rate. The type of the frequency dependence of permittivity and dielectric loss of these structures has been established in the frequency range of 25 Hz — 1 MHz. Dielectric loss has been shown to increase upon sample exposure to gamma-quanta of caesium-137 proportionally to exposure time.
{"title":"The Dielectric Properties and Radiation Resistance of Aluminum Oxide Layers Obtained by Atomic Layer Deposition","authors":"D. I. Dolzhenko, V. Kapralova, N. Sudar","doi":"10.1109/EEXPOLYTECH.2018.8564381","DOIUrl":"https://doi.org/10.1109/EEXPOLYTECH.2018.8564381","url":null,"abstract":"The dielectric properties of MIM-structures with Al2O3 dielectric layers obtained by ALD method have been studied. The breakdown field strength of these structures has been determined to be about 4.4 MV/cm in the linear voltage increase mode and to have virtually no dependence on the voltage increase rate. The type of the frequency dependence of permittivity and dielectric loss of these structures has been established in the frequency range of 25 Hz — 1 MHz. Dielectric loss has been shown to increase upon sample exposure to gamma-quanta of caesium-137 proportionally to exposure time.","PeriodicalId":296618,"journal":{"name":"2018 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123098216","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 : 2018-10-01DOI: 10.1109/EEXPOLYTECH.2018.8564386
R. Smerdov, A. Mustafaev, Y. Spivak, Vyacheslav Moshnikov, V. Soukhomlinov
The potential applications of composite nanostructured materials for PETE (photon-enhanced thermionic emission for solar concentrators) and thermionic plasma energy systems electrode implementation are considered in this study. The investigation of composite porous silicon (PS) and graphene-based structures for PETE and thermionic energy converter (TEC) electrode realization is presented. The origins of low work function effect are considered and interpreted as a repercussion of surface modification and structure alteration on the composite material properties. The significant decrease in the effective electron work function to an anomalously low value of 1 eV is obtained with a perforated nickel anode functionalized with nanosized graphene layers. SEM X-ray microanalysis of the TEC collector surface is performed, the mechanism of the anode work function lowering effect is considered. Raman spectroscopy technique is utilized in order to investigate the surface structure properties of PS-based composite layers (PS/Ag). The interpretation of PS/Ag Raman spectra is proposed.
{"title":"Porous Silicon and Graphene Composite Materials for Novel Nanoenergetic Systems","authors":"R. Smerdov, A. Mustafaev, Y. Spivak, Vyacheslav Moshnikov, V. Soukhomlinov","doi":"10.1109/EEXPOLYTECH.2018.8564386","DOIUrl":"https://doi.org/10.1109/EEXPOLYTECH.2018.8564386","url":null,"abstract":"The potential applications of composite nanostructured materials for PETE (photon-enhanced thermionic emission for solar concentrators) and thermionic plasma energy systems electrode implementation are considered in this study. The investigation of composite porous silicon (PS) and graphene-based structures for PETE and thermionic energy converter (TEC) electrode realization is presented. The origins of low work function effect are considered and interpreted as a repercussion of surface modification and structure alteration on the composite material properties. The significant decrease in the effective electron work function to an anomalously low value of 1 eV is obtained with a perforated nickel anode functionalized with nanosized graphene layers. SEM X-ray microanalysis of the TEC collector surface is performed, the mechanism of the anode work function lowering effect is considered. Raman spectroscopy technique is utilized in order to investigate the surface structure properties of PS-based composite layers (PS/Ag). The interpretation of PS/Ag Raman spectra is proposed.","PeriodicalId":296618,"journal":{"name":"2018 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131444932","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 : 2018-10-01DOI: 10.1109/EEXPOLYTECH.2018.8564387
V. A. Lyapishev, V. Rud', M. Sokolov, A. Cheremisin
Photonic sensors have recently played a more important role in building a sustainable future and, and this role is primarily practical, especially in the production, distribution and conservation of energy. In the transmission and reception of light signals, the development of polarimetric photosensitive structures based on green leaves and other living world materials may be interesting for new green Photonics tools.
{"title":"Polarization Sensitive Sensors for Green Photonics","authors":"V. A. Lyapishev, V. Rud', M. Sokolov, A. Cheremisin","doi":"10.1109/EEXPOLYTECH.2018.8564387","DOIUrl":"https://doi.org/10.1109/EEXPOLYTECH.2018.8564387","url":null,"abstract":"Photonic sensors have recently played a more important role in building a sustainable future and, and this role is primarily practical, especially in the production, distribution and conservation of energy. In the transmission and reception of light signals, the development of polarimetric photosensitive structures based on green leaves and other living world materials may be interesting for new green Photonics tools.","PeriodicalId":296618,"journal":{"name":"2018 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"314 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124451932","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 : 2018-10-01DOI: 10.1109/EEXPOLYTECH.2018.8564383
A. Mamoshin, A. Alyanov, E. Seryogina, E. Potapova, A. Dunaev, A. V. Ivanov, A. Aladov
Determination of optimal lighting conditions for contrast imaging of operated objects is important for the surgeon. In this paper, we consider various parameters of a controlled color-dynamic surgical light based on a powerful LED when contrasting individual organs and tissues of model animals. The obtained results will allow to develop a library of color gamut and illumination settings for a wide range of surgical operations.
{"title":"Possibilities of Using Dynamically Controlled Semiconductor Light Sources During Surgical Operations","authors":"A. Mamoshin, A. Alyanov, E. Seryogina, E. Potapova, A. Dunaev, A. V. Ivanov, A. Aladov","doi":"10.1109/EEXPOLYTECH.2018.8564383","DOIUrl":"https://doi.org/10.1109/EEXPOLYTECH.2018.8564383","url":null,"abstract":"Determination of optimal lighting conditions for contrast imaging of operated objects is important for the surgeon. In this paper, we consider various parameters of a controlled color-dynamic surgical light based on a powerful LED when contrasting individual organs and tissues of model animals. The obtained results will allow to develop a library of color gamut and illumination settings for a wide range of surgical operations.","PeriodicalId":296618,"journal":{"name":"2018 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124798422","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 : 2018-10-01DOI: 10.1109/EEXPOLYTECH.2018.8564410
G. L. Klimchitskaya, V. Mostepanenko, E. Nepomnyashchaya, E. Velichko
This article investigates an impact of magnetic particles in ferrofluids on the van der Waals and Casimir forces caused by fluctuations of the electromagnetic field. It is shown that the presence of particles of 10 nm diameter in kerosene decreases the pressure of dispersion forces by up to 18% within the range of separation distances between glass cavity walls from 200 nm to 2 µm.
{"title":"Impact of Magnetic Particles on Dispersion Forces in Ferrofluid-Based Microdevices","authors":"G. L. Klimchitskaya, V. Mostepanenko, E. Nepomnyashchaya, E. Velichko","doi":"10.1109/EEXPOLYTECH.2018.8564410","DOIUrl":"https://doi.org/10.1109/EEXPOLYTECH.2018.8564410","url":null,"abstract":"This article investigates an impact of magnetic particles in ferrofluids on the van der Waals and Casimir forces caused by fluctuations of the electromagnetic field. It is shown that the presence of particles of 10 nm diameter in kerosene decreases the pressure of dispersion forces by up to 18% within the range of separation distances between glass cavity walls from 200 nm to 2 µm.","PeriodicalId":296618,"journal":{"name":"2018 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122469747","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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