Pub Date : 2010-06-21DOI: 10.1109/MSMW.2010.5546005
Y. Suarez-Hernandez, Duchen Gonzalo, Ponomaryov Volodymyr
The recognizing of cancer in mammograms implemented on the FPGA platform is pretty much similar than PC result evaluation. With less than 0.6% error, this program can be used in other image processing applications that require the neural networks employment with good results in characteristic recognizing of the images.
{"title":"Recognition FPGA system for detection of anomalies in mammograms","authors":"Y. Suarez-Hernandez, Duchen Gonzalo, Ponomaryov Volodymyr","doi":"10.1109/MSMW.2010.5546005","DOIUrl":"https://doi.org/10.1109/MSMW.2010.5546005","url":null,"abstract":"The recognizing of cancer in mammograms implemented on the FPGA platform is pretty much similar than PC result evaluation. With less than 0.6% error, this program can be used in other image processing applications that require the neural networks employment with good results in characteristic recognizing of the images.","PeriodicalId":129834,"journal":{"name":"2010 INTERNATIONAL KHARKOV SYMPOSIUM ON PHYSICS AND ENGINEERING OF MICROWAVES, MILLIMETER AND SUBMILLIMETER WAVES","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124282330","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 : 2010-06-21DOI: 10.1109/MSMW.2010.5546124
A. Boriskin, R. Sauleau
Paper describes designing procedure of dielectric lens antennas (DLA) for multibeam applications. Two configurations of DLAs are considered, namely: two-shell circularly-layered lens excited by a horn antenna and shaped homogeneous flat-bottom lens excited by an array of printed feeds. Synthesis of the antennas is carried out in the 2-D formulation using highly-efficient in-house softwares based on rigorous mathematical approaches (Mie-type series solution for the former and Muller's boundary integral equations for the latter). It is demonstrated that simultaneous optimization of lens and feeding structure parameters enables one to design a beam-switching DLA with improve performance characteristics (boresight directivity and steering ability) using standard low-loss dielectric materials.
{"title":"Design of dielectric lens antennas for multibeam applications","authors":"A. Boriskin, R. Sauleau","doi":"10.1109/MSMW.2010.5546124","DOIUrl":"https://doi.org/10.1109/MSMW.2010.5546124","url":null,"abstract":"Paper describes designing procedure of dielectric lens antennas (DLA) for multibeam applications. Two configurations of DLAs are considered, namely: two-shell circularly-layered lens excited by a horn antenna and shaped homogeneous flat-bottom lens excited by an array of printed feeds. Synthesis of the antennas is carried out in the 2-D formulation using highly-efficient in-house softwares based on rigorous mathematical approaches (Mie-type series solution for the former and Muller's boundary integral equations for the latter). It is demonstrated that simultaneous optimization of lens and feeding structure parameters enables one to design a beam-switching DLA with improve performance characteristics (boresight directivity and steering ability) using standard low-loss dielectric materials.","PeriodicalId":129834,"journal":{"name":"2010 INTERNATIONAL KHARKOV SYMPOSIUM ON PHYSICS AND ENGINEERING OF MICROWAVES, MILLIMETER AND SUBMILLIMETER WAVES","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114701676","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 : 2010-06-21DOI: 10.1109/MSMW.2010.5546099
S. Rozanov, S. V. Solomonov, A. Ignatyev, E. P. Kropotkina, S. Logvinenko, A. Lukin, P. Nikiforov, A. Shtanyuk
Ozone plays very important role in the atmosphere because it protects life at the Earth's surface against the harmful solar UV-B radiation [1]. In the stratosphere, ozone critically controls the energy budget because it absorbs both solar UV and terrestrial IR radiation [1]. Spatial distribution and variations of the ozone content determine quantity and variations of the absorbed energy. Existing satellite instruments such as [2] can't provide both high resolution in horizontal plane and sufficiently dense data sets on concentration of ozone and ozone-related species (in the first place, chlorine and nitrogen oxides) over selected regions. So reliable ground-based instruments for monitoring of ozone and other minor atmospheric gases are necessary in addition to the satellites.
{"title":"Millimeter-wave spectrometers for remote sensing of ozone and other minor gases of the atmosphere","authors":"S. Rozanov, S. V. Solomonov, A. Ignatyev, E. P. Kropotkina, S. Logvinenko, A. Lukin, P. Nikiforov, A. Shtanyuk","doi":"10.1109/MSMW.2010.5546099","DOIUrl":"https://doi.org/10.1109/MSMW.2010.5546099","url":null,"abstract":"Ozone plays very important role in the atmosphere because it protects life at the Earth's surface against the harmful solar UV-B radiation [1]. In the stratosphere, ozone critically controls the energy budget because it absorbs both solar UV and terrestrial IR radiation [1]. Spatial distribution and variations of the ozone content determine quantity and variations of the absorbed energy. Existing satellite instruments such as [2] can't provide both high resolution in horizontal plane and sufficiently dense data sets on concentration of ozone and ozone-related species (in the first place, chlorine and nitrogen oxides) over selected regions. So reliable ground-based instruments for monitoring of ozone and other minor atmospheric gases are necessary in addition to the satellites.","PeriodicalId":129834,"journal":{"name":"2010 INTERNATIONAL KHARKOV SYMPOSIUM ON PHYSICS AND ENGINEERING OF MICROWAVES, MILLIMETER AND SUBMILLIMETER WAVES","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130331855","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 : 2010-06-21DOI: 10.1109/MSMW.2010.5546115
O. Ovsyannikova, A. Shishkova, N. Gorobets
The thorough investigation of the distribution of electromagnetic radiation in the near-field reactive region of square aperture with different amplitude illumination laws was carried out. It has been shown, that extension of reactive field region significantly depends on the illumination law especially for small radiators. The ratio between the reactive and active power density has been calculated and analyzed at different planes in near-field region as well as along the axis normal to radiator aperture. It has been shown that, the reactive component of power flux density was absent in all planes of observation in sections |x|=|y| for the uniform amplitude distribution. The pattern of the spatial distribution of reactive power component is symmetric with respect to sections |x|=|y|.
{"title":"Distribution of reactive power density in the near-field region of aperture antennas with different illumination laws","authors":"O. Ovsyannikova, A. Shishkova, N. Gorobets","doi":"10.1109/MSMW.2010.5546115","DOIUrl":"https://doi.org/10.1109/MSMW.2010.5546115","url":null,"abstract":"The thorough investigation of the distribution of electromagnetic radiation in the near-field reactive region of square aperture with different amplitude illumination laws was carried out. It has been shown, that extension of reactive field region significantly depends on the illumination law especially for small radiators. The ratio between the reactive and active power density has been calculated and analyzed at different planes in near-field region as well as along the axis normal to radiator aperture. It has been shown that, the reactive component of power flux density was absent in all planes of observation in sections |x|=|y| for the uniform amplitude distribution. The pattern of the spatial distribution of reactive power component is symmetric with respect to sections |x|=|y|.","PeriodicalId":129834,"journal":{"name":"2010 INTERNATIONAL KHARKOV SYMPOSIUM ON PHYSICS AND ENGINEERING OF MICROWAVES, MILLIMETER AND SUBMILLIMETER WAVES","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123118152","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 : 2010-06-21DOI: 10.1109/MSMW.2010.5546071
G. Baryshnikov, B. Minaev, V. Minaeva
Rhodanines is non-aromatic heterocyclic compounds, which are basis for the synthesis of some sensitizing dyes. In papers [1, 2] reported that rhodanine cycle can exist in three tautomeric forms - ketone, enol and thioenol. This is a consequence of large polar N-H bond in rhodanine cycle. Enol and thioenol forms can exist in two equivalent conformations, different in the direction of S-H and O-H bonds (Fig. 1). This conclusion was confirming by the data [2].
{"title":"Theoretical study of methylidene rhodanine tautomerism","authors":"G. Baryshnikov, B. Minaev, V. Minaeva","doi":"10.1109/MSMW.2010.5546071","DOIUrl":"https://doi.org/10.1109/MSMW.2010.5546071","url":null,"abstract":"Rhodanines is non-aromatic heterocyclic compounds, which are basis for the synthesis of some sensitizing dyes. In papers [1, 2] reported that rhodanine cycle can exist in three tautomeric forms - ketone, enol and thioenol. This is a consequence of large polar N-H bond in rhodanine cycle. Enol and thioenol forms can exist in two equivalent conformations, different in the direction of S-H and O-H bonds (Fig. 1). This conclusion was confirming by the data [2].","PeriodicalId":129834,"journal":{"name":"2010 INTERNATIONAL KHARKOV SYMPOSIUM ON PHYSICS AND ENGINEERING OF MICROWAVES, MILLIMETER AND SUBMILLIMETER WAVES","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127545328","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 : 2010-06-21DOI: 10.1109/MSMW.2010.5546188
S. Prikolotin, A. Kirilenko
Waveguide bandstop and notch filters are widely used microwave devices. One of notch filters is in the focus of this paper. It is a stepped conductor in a rectangular waveguide cross-section (inset in Fig. 1). Such a filter provides narrow-band reflection of the TE10 wave at a desired frequency of the operating frequency range. It can be used both as a section of a bandstop filter and as a notch filter itself.
{"title":"Spectral characteristics of step-bended bar in a rectangular waveguide","authors":"S. Prikolotin, A. Kirilenko","doi":"10.1109/MSMW.2010.5546188","DOIUrl":"https://doi.org/10.1109/MSMW.2010.5546188","url":null,"abstract":"Waveguide bandstop and notch filters are widely used microwave devices. One of notch filters is in the focus of this paper. It is a stepped conductor in a rectangular waveguide cross-section (inset in Fig. 1). Such a filter provides narrow-band reflection of the TE10 wave at a desired frequency of the operating frequency range. It can be used both as a section of a bandstop filter and as a notch filter itself.","PeriodicalId":129834,"journal":{"name":"2010 INTERNATIONAL KHARKOV SYMPOSIUM ON PHYSICS AND ENGINEERING OF MICROWAVES, MILLIMETER AND SUBMILLIMETER WAVES","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127311123","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 : 2010-06-21DOI: 10.1109/MSMW.2010.5545999
D. Churikov
In this report, the application of the analytical Kravchenko wavelets for the digital UWB signal processing is proposed and justified. A numerical experiment carried out and also an analysis of physical results show potential opportunities arising from application of the suggested and proved wavelets into problems of digital ultra wideband signal processing.
{"title":"Analytical Kravchenko wavelets in the digital UWB signal processing","authors":"D. Churikov","doi":"10.1109/MSMW.2010.5545999","DOIUrl":"https://doi.org/10.1109/MSMW.2010.5545999","url":null,"abstract":"In this report, the application of the analytical Kravchenko wavelets for the digital UWB signal processing is proposed and justified. A numerical experiment carried out and also an analysis of physical results show potential opportunities arising from application of the suggested and proved wavelets into problems of digital ultra wideband signal processing.","PeriodicalId":129834,"journal":{"name":"2010 INTERNATIONAL KHARKOV SYMPOSIUM ON PHYSICS AND ENGINEERING OF MICROWAVES, MILLIMETER AND SUBMILLIMETER WAVES","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127070641","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 : 2010-06-21DOI: 10.1109/MSMW.2010.5545987
V. Denysenkov, V. K. Kiseliov, M. Prandolini, M. Gafurov, A. Krahn, F. Engelke, V. Bezborodov, Y. Kuleshov, P. Nesterov, M. S. Yanovsky, T. Prisner
Transmission of microwave signals under low-losses conditions is highly demanding task in sub-mm EPR and DNP spectroscopy. We have designed and built a quasioptical setup in the Michelson interferometer configuration using oversized metallo-dielectric waveguides (MDW) of a square-shape cross-section and components such as attenuators, beam splitters, wavemeter, tapers to fundamental TE10 mode which have extremely low losses in sub-mm wave range. Following features of the setup such as total transmission losses below 2 dB from the source port to a resonator with a sample inside the cryomagnet; fine balance tuning between signal and reference channels affording up to 36 dB background signal suppression, linear-to-circular polarization conversion with a possibility to tune its phase, which allows effective suppression of reflected signal with respect to induction signal; switching between two microwave sources; and high power handling up to 20 Watt helped to reach high performance of the 9.2 Tesla DNP/NMR/EPR spectrometer. First liquid-state DNP results on nitroxide radicals in water will be presented.
{"title":"260 GHz quasioptical setup for EPR and DNP experiments on the 9.2 Tesla DNP/NMR/EPR spectrometer","authors":"V. Denysenkov, V. K. Kiseliov, M. Prandolini, M. Gafurov, A. Krahn, F. Engelke, V. Bezborodov, Y. Kuleshov, P. Nesterov, M. S. Yanovsky, T. Prisner","doi":"10.1109/MSMW.2010.5545987","DOIUrl":"https://doi.org/10.1109/MSMW.2010.5545987","url":null,"abstract":"Transmission of microwave signals under low-losses conditions is highly demanding task in sub-mm EPR and DNP spectroscopy. We have designed and built a quasioptical setup in the Michelson interferometer configuration using oversized metallo-dielectric waveguides (MDW) of a square-shape cross-section and components such as attenuators, beam splitters, wavemeter, tapers to fundamental TE10 mode which have extremely low losses in sub-mm wave range. Following features of the setup such as total transmission losses below 2 dB from the source port to a resonator with a sample inside the cryomagnet; fine balance tuning between signal and reference channels affording up to 36 dB background signal suppression, linear-to-circular polarization conversion with a possibility to tune its phase, which allows effective suppression of reflected signal with respect to induction signal; switching between two microwave sources; and high power handling up to 20 Watt helped to reach high performance of the 9.2 Tesla DNP/NMR/EPR spectrometer. First liquid-state DNP results on nitroxide radicals in water will be presented.","PeriodicalId":129834,"journal":{"name":"2010 INTERNATIONAL KHARKOV SYMPOSIUM ON PHYSICS AND ENGINEERING OF MICROWAVES, MILLIMETER AND SUBMILLIMETER WAVES","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127134876","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 : 2010-06-21DOI: 10.1109/MSMW.2010.5546019
V. Baryshevsky, E. Gurnevich
Photonic crystals, formed by the periodically strained parallel metallic threads, can be used (and already are in use) in the most various applications, first of all for microwave antenna applications [1]. Moreover, such structures are applied as resonators in volume free electron lasers (VFEL) [2].
{"title":"The possibility of Cherenkov radiation generation in a photonic crystal formed by parallel metallic threads","authors":"V. Baryshevsky, E. Gurnevich","doi":"10.1109/MSMW.2010.5546019","DOIUrl":"https://doi.org/10.1109/MSMW.2010.5546019","url":null,"abstract":"Photonic crystals, formed by the periodically strained parallel metallic threads, can be used (and already are in use) in the most various applications, first of all for microwave antenna applications [1]. Moreover, such structures are applied as resonators in volume free electron lasers (VFEL) [2].","PeriodicalId":129834,"journal":{"name":"2010 INTERNATIONAL KHARKOV SYMPOSIUM ON PHYSICS AND ENGINEERING OF MICROWAVES, MILLIMETER AND SUBMILLIMETER WAVES","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121338632","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 : 2010-06-21DOI: 10.1109/MSMW.2010.5546153
V. Bezruk, E. Belov, O. Voitovych, G. Rudnev, G. Khlopov, S. Homenko
1. The algorithm of radar recognition of meteorological objects on the base of autoregressive model is proposed. 2. The measurement complex is developed on the base of the modernized incoherent pulse meteorological radar MRL-1 and experimental study of the signal reflected from various meteorological objects are performed, including high-altitude cumulus clouds, some worse for cumulonimbus clouds and not satisfactory for the “angel-echo” which are formed by Bragg reflections from inhomogeneities in surface layer of a clear atmosphere. 3. It is shown that the probability of correct recognition is extremely high >0,95 for high-altitude cumulus clouds even in the case of small AR model order and the probability is some worse for cumulonimbus clouds. 4. In the case of the “angel-echo” the probability of correct recognition is lowest because diffuse scattering from the “angel-echo” cannot be satisfactory described by a set of harmonic oscillations which are typical for the AR model.
{"title":"Radar identification of clouds","authors":"V. Bezruk, E. Belov, O. Voitovych, G. Rudnev, G. Khlopov, S. Homenko","doi":"10.1109/MSMW.2010.5546153","DOIUrl":"https://doi.org/10.1109/MSMW.2010.5546153","url":null,"abstract":"1. The algorithm of radar recognition of meteorological objects on the base of autoregressive model is proposed. 2. The measurement complex is developed on the base of the modernized incoherent pulse meteorological radar MRL-1 and experimental study of the signal reflected from various meteorological objects are performed, including high-altitude cumulus clouds, some worse for cumulonimbus clouds and not satisfactory for the “angel-echo” which are formed by Bragg reflections from inhomogeneities in surface layer of a clear atmosphere. 3. It is shown that the probability of correct recognition is extremely high >0,95 for high-altitude cumulus clouds even in the case of small AR model order and the probability is some worse for cumulonimbus clouds. 4. In the case of the “angel-echo” the probability of correct recognition is lowest because diffuse scattering from the “angel-echo” cannot be satisfactory described by a set of harmonic oscillations which are typical for the AR model.","PeriodicalId":129834,"journal":{"name":"2010 INTERNATIONAL KHARKOV SYMPOSIUM ON PHYSICS AND ENGINEERING OF MICROWAVES, MILLIMETER AND SUBMILLIMETER WAVES","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126332365","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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