Pub Date : 2016-08-09DOI: 10.1109/MSMW.2016.7538206
T. Idehara, A. Kuleshov, E. Khutoryan, Y. Tatematsu, Y. Matsuki, T. Fujiwara, S. Asai, T. Suehara, T. Yamazaki, A. Miyazaki
High frequency gyrotrons developed in FIR UF covering sub-THz to THz range have achieved operation functions such as high stabilization of frequency and power, high speed frequency modulation and frequency tunability. Such gyrotrons with functions of frequency and power control have opened new horizon of high power THz technologies, for example, high frequency DNP-NMR spectroscopy, direct measurement of hyperfine structure of positronium, activation of Boron-neutron capture therapy (BNCT), etc. The status of development and applications of high frequency gyrations in FIR UF are introduced.
FIR UF开发的覆盖亚太赫兹到太赫兹范围的高频回旋管，实现了频率和功率的高稳定、高速调频和频率可调性等工作功能。这种具有频率和功率控制功能的回旋管开辟了高功率太赫兹技术的新领域，如高频DNP-NMR波谱、正电子离子超精细结构的直接测量、硼中子俘获疗法(BNCT)的激活等。介绍了高频回转在FIR UF中的发展现状和应用情况。
{"title":"High power THz technologies opened by high frequency gyrations covering Sub-THz to THz region","authors":"T. Idehara, A. Kuleshov, E. Khutoryan, Y. Tatematsu, Y. Matsuki, T. Fujiwara, S. Asai, T. Suehara, T. Yamazaki, A. Miyazaki","doi":"10.1109/MSMW.2016.7538206","DOIUrl":"https://doi.org/10.1109/MSMW.2016.7538206","url":null,"abstract":"High frequency gyrotrons developed in FIR UF covering sub-THz to THz range have achieved operation functions such as high stabilization of frequency and power, high speed frequency modulation and frequency tunability. Such gyrotrons with functions of frequency and power control have opened new horizon of high power THz technologies, for example, high frequency DNP-NMR spectroscopy, direct measurement of hyperfine structure of positronium, activation of Boron-neutron capture therapy (BNCT), etc. The status of development and applications of high frequency gyrations in FIR UF are introduced.","PeriodicalId":6504,"journal":{"name":"2016 9th International Kharkiv Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77081607","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 : 2016-06-20DOI: 10.1109/MSMW.2016.7538188
D. Ivanchenko, I. Ivanchenko, M. Khruslov, N. Popenko, V. Plakhtiy
In this paper a modification of the well-known method of resonance dielectrometry is proposed with the aim to define a real part of the permittivity of weakly concentrated solutions in the microwave frequency band. By using the results of numerical simulations, the optimized electrodynamical module has been fabricated and tested. The experimental verification of the proposed method points out the high sensitivity and accuracy of measurements.
{"title":"Definition permittivity of weakly concentrated solutions in the microwave range","authors":"D. Ivanchenko, I. Ivanchenko, M. Khruslov, N. Popenko, V. Plakhtiy","doi":"10.1109/MSMW.2016.7538188","DOIUrl":"https://doi.org/10.1109/MSMW.2016.7538188","url":null,"abstract":"In this paper a modification of the well-known method of resonance dielectrometry is proposed with the aim to define a real part of the permittivity of weakly concentrated solutions in the microwave frequency band. By using the results of numerical simulations, the optimized electrodynamical module has been fabricated and tested. The experimental verification of the proposed method points out the high sensitivity and accuracy of measurements.","PeriodicalId":6504,"journal":{"name":"2016 9th International Kharkiv Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75207315","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 : 2016-06-20DOI: 10.1109/MSMW.2016.7538111
S. D. Andrenko, Y. Kamenev, S. Masalov
This paper presents the analysis of application of strip gratings on dielectric substrates as output couplers for submillimeter lasers. The coupler transmittance characteristics was calculated by FDTD method and compared with experimental results. The influence of the dielectric substrate on the coupler transmittance was investigated.
{"title":"Strip gratings on dielectric substrates electrodynamic parameters measurement in the THz range","authors":"S. D. Andrenko, Y. Kamenev, S. Masalov","doi":"10.1109/MSMW.2016.7538111","DOIUrl":"https://doi.org/10.1109/MSMW.2016.7538111","url":null,"abstract":"This paper presents the analysis of application of strip gratings on dielectric substrates as output couplers for submillimeter lasers. The coupler transmittance characteristics was calculated by FDTD method and compared with experimental results. The influence of the dielectric substrate on the coupler transmittance was investigated.","PeriodicalId":6504,"journal":{"name":"2016 9th International Kharkiv Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74532116","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 : 2016-06-20DOI: 10.1109/MSMW.2016.7538148
Javier Molina-Garcia, R. Reyes-Reyes, V. Ponomaryov, Clara Cruz-Ramos
Nowadays the use of digital images is a common practice worldwide, they are used for social, commercial or legal purposes among others; therefore it is important to detect malicious alterations in this type of content, to avoid possible social, legal or personal damages. Currently there are various proposed techniques to solve this problem. However, most of these proposals can only protect a region of interest within digital image, making feasible even with these methods, the alteration of certain regions that are not protected. Therefore, this paper proposes a digital image watermarking algorithm, which consists of two stages; the first one is to protect the digital image that is performed by Daubechies DWT, halftoning and QIM methods; the second one is used for authentication, detection and self-recovery of tampered regions, through IDWT, inverse halftoning and median filtering. Experimental results have demonstrated the effectiveness of the proposed algorithm, obtaining average PSNR values of 35 dB in the self-recovery image, even if the watermarked image was subjected to a JPEG compression using a quality factor QF=75.
{"title":"Watermarking algorithm for authentication and self-recovery of tampered images using DWT","authors":"Javier Molina-Garcia, R. Reyes-Reyes, V. Ponomaryov, Clara Cruz-Ramos","doi":"10.1109/MSMW.2016.7538148","DOIUrl":"https://doi.org/10.1109/MSMW.2016.7538148","url":null,"abstract":"Nowadays the use of digital images is a common practice worldwide, they are used for social, commercial or legal purposes among others; therefore it is important to detect malicious alterations in this type of content, to avoid possible social, legal or personal damages. Currently there are various proposed techniques to solve this problem. However, most of these proposals can only protect a region of interest within digital image, making feasible even with these methods, the alteration of certain regions that are not protected. Therefore, this paper proposes a digital image watermarking algorithm, which consists of two stages; the first one is to protect the digital image that is performed by Daubechies DWT, halftoning and QIM methods; the second one is used for authentication, detection and self-recovery of tampered regions, through IDWT, inverse halftoning and median filtering. Experimental results have demonstrated the effectiveness of the proposed algorithm, obtaining average PSNR values of 35 dB in the self-recovery image, even if the watermarked image was subjected to a JPEG compression using a quality factor QF=75.","PeriodicalId":6504,"journal":{"name":"2016 9th International Kharkiv Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72800025","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 : 2016-06-20DOI: 10.1109/MSMW.2016.7538075
Y. E. Yamac, A. Kizilay
In this paper, it is aimed to design and optimize a Waveguide Slotted Array (WSA) antennas for X-band radar applications. The slot offsets, slot lengths and widths, port position of the antenna are optimized by using Trust Region Framework and Classic Powel algorithms in simulation environment without requiring analytical calculations. The side lobes of radiation pattern are suppressed by using these optimizations. The antennas are simulated with different slot's numbers (11 and 21 slotted antennas). Although using more slots provides narrower beam, back lobe of the radiation pattern rises crucial levels. A parabolic structure is designed to avoid from back lobes and a small gain increment can be obtained with this modification. The modified 21-slotted WSA antenna presents 20.8 dB maximum realized gain, 4.50 degree 3 dB angular width, 90 degree main lobe direction, and 24.9 dB side lobe level in simulation results at 9.5 GHz. The antenna is also fabricated and measured. A good agreement is obtained between simulation and measurement.
{"title":"A Waveguide Slot Array antenna design for X-band radar","authors":"Y. E. Yamac, A. Kizilay","doi":"10.1109/MSMW.2016.7538075","DOIUrl":"https://doi.org/10.1109/MSMW.2016.7538075","url":null,"abstract":"In this paper, it is aimed to design and optimize a Waveguide Slotted Array (WSA) antennas for X-band radar applications. The slot offsets, slot lengths and widths, port position of the antenna are optimized by using Trust Region Framework and Classic Powel algorithms in simulation environment without requiring analytical calculations. The side lobes of radiation pattern are suppressed by using these optimizations. The antennas are simulated with different slot's numbers (11 and 21 slotted antennas). Although using more slots provides narrower beam, back lobe of the radiation pattern rises crucial levels. A parabolic structure is designed to avoid from back lobes and a small gain increment can be obtained with this modification. The modified 21-slotted WSA antenna presents 20.8 dB maximum realized gain, 4.50 degree 3 dB angular width, 90 degree main lobe direction, and 24.9 dB side lobe level in simulation results at 9.5 GHz. The antenna is also fabricated and measured. A good agreement is obtained between simulation and measurement.","PeriodicalId":6504,"journal":{"name":"2016 9th International Kharkiv Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82315315","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 : 2016-06-20DOI: 10.1109/MSMW.2016.7538016
J. Sorocki, I. Piekarz, K. Wincza, S. Gruszczynski
In this paper, a novel method for dielectric sample detection in a microwave frequency range has been presented. The proposed measurement setup composed of two identical baluns and a coupled-line section sensor covered by an unknown dielectric material has been analyzed and formulas allowing for calculation of effective permittivity have been derived. The method allows for detection of small dielectric samples having size comparable with separation between sensor's coupled strips and therefore is dedicated for detection of bacteria in e.g. water, food etc. The proposed system has been theoretically investigated and verified by EM calculations.
{"title":"Differentialy excited coupled-line sensor for small dielectric samples detection","authors":"J. Sorocki, I. Piekarz, K. Wincza, S. Gruszczynski","doi":"10.1109/MSMW.2016.7538016","DOIUrl":"https://doi.org/10.1109/MSMW.2016.7538016","url":null,"abstract":"In this paper, a novel method for dielectric sample detection in a microwave frequency range has been presented. The proposed measurement setup composed of two identical baluns and a coupled-line section sensor covered by an unknown dielectric material has been analyzed and formulas allowing for calculation of effective permittivity have been derived. The method allows for detection of small dielectric samples having size comparable with separation between sensor's coupled strips and therefore is dedicated for detection of bacteria in e.g. water, food etc. The proposed system has been theoretically investigated and verified by EM calculations.","PeriodicalId":6504,"journal":{"name":"2016 9th International Kharkiv Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82356626","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 : 2016-06-20DOI: 10.1109/MSMW.2016.7538081
A. Meshcheryakov, V. Ilyushin, E. Alekseev, R. A. Motienko, L. Margulès
Rotational spectra of the N-methylformamide HCONHCH3 molecule were recorded in the frequency range between 45 and 630 GHz. Analysis was carried out for the trans conformer of the molecule using the Rho axis method where the quadrupole hyperfine structure was taken into account in the first order of perturbation treatment. The analysed dataset for trans conformer contains 18914 A and E transitions with J ≤ 62 in the ground, first, and second excited torsional states. A fit within experimental error is achieved with weighted root-mean-square deviation of 0.85.
n -甲基甲酰胺HCONHCH3分子在45 ~ 630 GHz频率范围内的旋转光谱被记录下来。采用Rho轴法对分子的反式构象进行了分析，其中四极超精细结构在一阶微扰处理中被考虑。分析的变压器共形器数据集包含18914个J≤62的A和E跃迁，分别位于地、一、二激扭态。加权均方根偏差为0.85，实验误差内拟合。
{"title":"Microwave spectrum of N-methylformamide","authors":"A. Meshcheryakov, V. Ilyushin, E. Alekseev, R. A. Motienko, L. Margulès","doi":"10.1109/MSMW.2016.7538081","DOIUrl":"https://doi.org/10.1109/MSMW.2016.7538081","url":null,"abstract":"Rotational spectra of the N-methylformamide HCONHCH3 molecule were recorded in the frequency range between 45 and 630 GHz. Analysis was carried out for the trans conformer of the molecule using the Rho axis method where the quadrupole hyperfine structure was taken into account in the first order of perturbation treatment. The analysed dataset for trans conformer contains 18914 A and E transitions with J ≤ 62 in the ground, first, and second excited torsional states. A fit within experimental error is achieved with weighted root-mean-square deviation of 0.85.","PeriodicalId":6504,"journal":{"name":"2016 9th International Kharkiv Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86870718","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 : 2016-06-20DOI: 10.1109/MSMW.2016.7538000
V. Noskov, K. Ignatkov, A. P. Chupahin, G. Ermak, A. Vasyliev
The mathematical model of operation of frequency modulated autodyne radar is developed. The model is presented in the form of an oscillator situated under influence of the proper reflected radiation from a radar object and inherent oscillator noises. Options of frequency modulation in the supply circuit and by means of capacity variation of the varicap embedded into the oscillator are considered. The main expressions for calculations of appropriate spurious amplitude modulation, components of the useful signal and noise are obtained for autodyne response registration both in the power supply circuit and on variation of oscillation amplitude. The results' analysis is performed in conformity with the autodyne oscillator on Gunn diode of 8mm-range.
{"title":"Mathematical model of FM autodyne radar","authors":"V. Noskov, K. Ignatkov, A. P. Chupahin, G. Ermak, A. Vasyliev","doi":"10.1109/MSMW.2016.7538000","DOIUrl":"https://doi.org/10.1109/MSMW.2016.7538000","url":null,"abstract":"The mathematical model of operation of frequency modulated autodyne radar is developed. The model is presented in the form of an oscillator situated under influence of the proper reflected radiation from a radar object and inherent oscillator noises. Options of frequency modulation in the supply circuit and by means of capacity variation of the varicap embedded into the oscillator are considered. The main expressions for calculations of appropriate spurious amplitude modulation, components of the useful signal and noise are obtained for autodyne response registration both in the power supply circuit and on variation of oscillation amplitude. The results' analysis is performed in conformity with the autodyne oscillator on Gunn diode of 8mm-range.","PeriodicalId":6504,"journal":{"name":"2016 9th International Kharkiv Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86540976","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 : 2016-06-20DOI: 10.1109/MSMW.2016.7538169
J. Basilio-Ramirez, H. Perez-Meana, V. Ponomaryov
Nowadays identification systems is being used in applications where security is required. However, the authentication with one layer of protection is obsolete. This fact causes that new threatens have appeared and that the number of attempts to break different systems has increased. In this paper, we propose a multifactor authentication system. During the authentication process, several validation factors may be needed to verify the user's identity. The goal is to perform an integrated application by layers such as biometrics and radio frequency identification (RFID). Based on this concept, the proposed method has an authentication engine with two independent credentials where an instrumentation system with an infrared LED and photodiode has been developed to evaluate fake fingerprints.
{"title":"Multifactor authentication system based on biometrics and radio frequency identification","authors":"J. Basilio-Ramirez, H. Perez-Meana, V. Ponomaryov","doi":"10.1109/MSMW.2016.7538169","DOIUrl":"https://doi.org/10.1109/MSMW.2016.7538169","url":null,"abstract":"Nowadays identification systems is being used in applications where security is required. However, the authentication with one layer of protection is obsolete. This fact causes that new threatens have appeared and that the number of attempts to break different systems has increased. In this paper, we propose a multifactor authentication system. During the authentication process, several validation factors may be needed to verify the user's identity. The goal is to perform an integrated application by layers such as biometrics and radio frequency identification (RFID). Based on this concept, the proposed method has an authentication engine with two independent credentials where an instrumentation system with an infrared LED and photodiode has been developed to evaluate fake fingerprints.","PeriodicalId":6504,"journal":{"name":"2016 9th International Kharkiv Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82606423","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 : 2016-06-20DOI: 10.1109/MSMW.2016.7538119
A. Perov, A. Kirilenko, V. Derkach
The system of conjugated stucked screens with rotational symmetry is considered to rotate polarization of the insident plane wave. It is discussed connection between the symmetry of the structure and its polarization response. The new dihedral eigenmodes, which are origin of the such resonant behaviour are investigated and illustreted by numerical results.
{"title":"Eigenmodes and polarization rotation in the conjugate stacked structures","authors":"A. Perov, A. Kirilenko, V. Derkach","doi":"10.1109/MSMW.2016.7538119","DOIUrl":"https://doi.org/10.1109/MSMW.2016.7538119","url":null,"abstract":"The system of conjugated stucked screens with rotational symmetry is considered to rotate polarization of the insident plane wave. It is discussed connection between the symmetry of the structure and its polarization response. The new dihedral eigenmodes, which are origin of the such resonant behaviour are investigated and illustreted by numerical results.","PeriodicalId":6504,"journal":{"name":"2016 9th International Kharkiv Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91392566","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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