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2022 IEEE 2nd Ukrainian Microwave Week (UkrMW)最新文献

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Loop Antenna with Dimensions Comparable with Wave Length 尺寸与波长相当的环形天线
2022 IEEE 2nd Ukrainian Microwave Week (UkrMW) Pub Date : 2022-11-14 DOI: 10.1109/UkrMW58013.2022.10037121
B. Levin
{"title":"Loop Antenna with Dimensions Comparable with Wave Length","authors":"B. Levin","doi":"10.1109/UkrMW58013.2022.10037121","DOIUrl":"https://doi.org/10.1109/UkrMW58013.2022.10037121","url":null,"abstract":"The method of a calculation of electrical characteristics of a loop antenna with a large dimension is proposed.","PeriodicalId":297673,"journal":{"name":"2022 IEEE 2nd Ukrainian Microwave Week (UkrMW)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130618307","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}
引用次数: 0
Modernization Possibility of the MARK-4B Antenna System of the RT-32 Radio Telescope for Dual-Band Operation in the S/X Frequency Range RT-32射电望远镜MARK-4B天线系统在S/X频率范围内双频工作的现代化可能性
2022 IEEE 2nd Ukrainian Microwave Week (UkrMW) Pub Date : 2022-11-14 DOI: 10.1109/UkrMW58013.2022.10037156
Mykhailo Natarov, O. Ulyanov, V. Prisiazhnii, Volodymyr V. Glamazdin, V. Zakharenko, A. Poikhalo, O. Shubnyi, Eugene Alekseev, V. Voytyuk, V. Chmil, O. Reznichenko, V. Ozhinskyi, Volodymyr Vlasenko, M. Palamar
{"title":"Modernization Possibility of the MARK-4B Antenna System of the RT-32 Radio Telescope for Dual-Band Operation in the S/X Frequency Range","authors":"Mykhailo Natarov, O. Ulyanov, V. Prisiazhnii, Volodymyr V. Glamazdin, V. Zakharenko, A. Poikhalo, O. Shubnyi, Eugene Alekseev, V. Voytyuk, V. Chmil, O. Reznichenko, V. Ozhinskyi, Volodymyr Vlasenko, M. Palamar","doi":"10.1109/UkrMW58013.2022.10037156","DOIUrl":"https://doi.org/10.1109/UkrMW58013.2022.10037156","url":null,"abstract":"The results of the study of the MARK-4B antenna system of RT -32 radio telescope functional capabilities in S- and X-band are presented. The frequency bands for effective antenna system operation were determined in the study. A theoretical and experimental study of the corrugated feed horn operation possibilities in the S- and X-band has been carried out. The radiation pattern of the antenna system was measured using the Cygnus A radio source in two frequency subranges of the X-band. It is shown that the antenna system can work effectively in the found frequency subranges of S-and X-band. Some promising options for design of a waveguide system for separating S-/X-band signals with orthogonal polarizations are presented.","PeriodicalId":297673,"journal":{"name":"2022 IEEE 2nd Ukrainian Microwave Week (UkrMW)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128345689","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}
引用次数: 0
Scattering from Thin Inhomogeneous Film Supported by a Dielectric Substrate 由介电基底支撑的非均匀薄膜的散射
2022 IEEE 2nd Ukrainian Microwave Week (UkrMW) Pub Date : 2022-11-14 DOI: 10.1109/UkrMW58013.2022.10037167
M. Andriychuk, I. Bolesta, O. Kushnir, B. Horon
{"title":"Scattering from Thin Inhomogeneous Film Supported by a Dielectric Substrate","authors":"M. Andriychuk, I. Bolesta, O. Kushnir, B. Horon","doi":"10.1109/UkrMW58013.2022.10037167","DOIUrl":"https://doi.org/10.1109/UkrMW58013.2022.10037167","url":null,"abstract":"The electromagnetic (EM) wave scattering from a thin inhomogeneous film is studied using the asymptotic approach. This is possible due to small size of particles, which are embedded into inhomogeneous material of a film. The generality of approach proposed allows to investigate the scattering phenomena in the sub-THz range considering the particles of nanosize. Such particles are embedded into thin homogeneous film, and the scattering performances of resulting material are studied. The derived system of linear algebraic equation (SLAE) allows to determine the auxiliary functions, which are used to get the explicit formulas for the scattering problem. The results of numerical computations show that the scattering properties of the designed inhomogeneous film depend on the character of the embedding nanoparticles considerably.","PeriodicalId":297673,"journal":{"name":"2022 IEEE 2nd Ukrainian Microwave Week (UkrMW)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134641635","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}
引用次数: 0
Elementary Radial Electric Dipole Excitation of Graphene Spherical Disk on Dielectric Sphere 介电球上石墨烯球盘的初等径向电偶极激发
2022 IEEE 2nd Ukrainian Microwave Week (UkrMW) Pub Date : 2022-11-14 DOI: 10.1109/UkrMW58013.2022.10037123
Iryna O. Mikhailikova, Sergii V. Dukhopelnykov
{"title":"Elementary Radial Electric Dipole Excitation of Graphene Spherical Disk on Dielectric Sphere","authors":"Iryna O. Mikhailikova, Sergii V. Dukhopelnykov","doi":"10.1109/UkrMW58013.2022.10037123","DOIUrl":"https://doi.org/10.1109/UkrMW58013.2022.10037123","url":null,"abstract":"We consider the antenna shaped as a spherical dielectric lens with a conformal graphene disk on its surface, fed with elementary source. The latter is a radial electric dipole placed on the lens rotation axis. The electrical properties of graphene are characterized with the aid of the Kubo formulas, which are based on the quantum-theory description. First, we cast the wave-scattering problem to the dual series equations for the field expansion in terms of the spherical harmonics. Then, using the static part analytical inversion with the aid of the Abel integral transform, we reduce the dual series equations to an infinite matrix equation of the Fredholm type with elements depending on the elementary functions. This procedure guarantees the convergence and enables us to accurately characterize the considered lens antenna performance, in particular, its radiation resistance and directivity, in the THz frequency range.","PeriodicalId":297673,"journal":{"name":"2022 IEEE 2nd Ukrainian Microwave Week (UkrMW)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134491945","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}
引用次数: 0
170/204 GHz Dual-Frequency Mode Generator for Verification of the Quasi-Optical Output Coupler of a 2 MW Coaxial-Cavity Gyrotron 用于验证2mw同轴腔回旋管准光输出耦合器的170/204 GHz双频模式发生器
2022 IEEE 2nd Ukrainian Microwave Week (UkrMW) Pub Date : 2022-11-14 DOI: 10.1109/UkrMW58013.2022.10036995
T. Ruess, G. Gantenbein, J. Jin, T. Rzesnicki, S. Stanculovic, M. Thumm, D. Wagner, J. Jelonnek
{"title":"170/204 GHz Dual-Frequency Mode Generator for Verification of the Quasi-Optical Output Coupler of a 2 MW Coaxial-Cavity Gyrotron","authors":"T. Ruess, G. Gantenbein, J. Jin, T. Rzesnicki, S. Stanculovic, M. Thumm, D. Wagner, J. Jelonnek","doi":"10.1109/UkrMW58013.2022.10036995","DOIUrl":"https://doi.org/10.1109/UkrMW58013.2022.10036995","url":null,"abstract":"The 2 MW 170 GHz single-frequency coaxial-cavity short-pulse pre-prototype is upgraded to operate also at 204 GHz. Therefore, the quasi-optical output coupler, which is a gyrotron key component, has been modified. Before the newly manufactured quasi-optical output coupler is installed into the gyrotron, a low-power cold measurement for the verification is performed. Therefore, a mode generator is designed and adjusted to excite the relevant operating gyrotron modes, namely the TE34,19 mode at 170 GHz and TE40,23 mode at 204 GHz, with excellent purity and a low counter-rotating amount of < 0.5 % for both modes. The TE40,23 mode is the mode with the highest eigenvalue ever excited in cold tests. After the successful mode excitation, first the fabricated launcher and then the entire quasi-optical output coupler are verified, showing excellent agreement with the simulation.","PeriodicalId":297673,"journal":{"name":"2022 IEEE 2nd Ukrainian Microwave Week (UkrMW)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134572458","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}
引用次数: 0
Fast Backward Electromagnetic Surface Waves Directed by Boundary Between Vacuum and Mu-Negative Metamaterials 真空与负mu超材料边界引导的快速反向电磁表面波
2022 IEEE 2nd Ukrainian Microwave Week (UkrMW) Pub Date : 2022-11-14 DOI: 10.1109/UkrMW58013.2022.10037074
V. Galaydych, M. Azarenkov
{"title":"Fast Backward Electromagnetic Surface Waves Directed by Boundary Between Vacuum and Mu-Negative Metamaterials","authors":"V. Galaydych, M. Azarenkov","doi":"10.1109/UkrMW58013.2022.10037074","DOIUrl":"https://doi.org/10.1109/UkrMW58013.2022.10037074","url":null,"abstract":"We present a surface electromagnetic eigenmode of a plane separating the negative permeability metamaterial and vacuum. The wavefields decreased exponentially out of the interface between the media. This wave is of TE-polarization with an electric field paralleling the interface. Mode is a fast wave because its phase velocity is more than the speed of light. Besides., the mode is a backward wave since the phase and group velocities have opposite directions. Such fast surface electromagnetic waves can be used for designing modern so-called “fast-waves devices” for both wave generation and amplification.","PeriodicalId":297673,"journal":{"name":"2022 IEEE 2nd Ukrainian Microwave Week (UkrMW)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123039104","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}
引用次数: 0
Second-Order Reconfigurable Half-Mode Substrate Integrated Waveguide Dual-Band Filter: a Circuit Perspective 二阶可重构半模衬底集成波导双带滤波器:电路视角
2022 IEEE 2nd Ukrainian Microwave Week (UkrMW) Pub Date : 2022-11-14 DOI: 10.1109/UkrMW58013.2022.10037059
Cleophas D. K. Mutepfe, V. Srivastava
{"title":"Second-Order Reconfigurable Half-Mode Substrate Integrated Waveguide Dual-Band Filter: a Circuit Perspective","authors":"Cleophas D. K. Mutepfe, V. Srivastava","doi":"10.1109/UkrMW58013.2022.10037059","DOIUrl":"https://doi.org/10.1109/UkrMW58013.2022.10037059","url":null,"abstract":"In this work, a tunable dual-band filter has been designed. A triangular Half-Mode Substrate Integrated Waveguide (HM-SIW) resonators have been used to miniaturize the filter to get a smaller device footprint. A dual-band filter operating at 9 GHz and 14 GHz first and second pass-band center frequency is built using Rogers-5880 substrate with a permittivity of 2.2. To reconfigure the center frequencies of the first and second pass-bands, dielectric rods have been used to perturb the structure. The diameter of the dielectric rods are varied from 0.2 mm to 0.8 mm, and the center frequency for the first pass-band changed from 8.1 GHz to 9.15 GHz, while the center frequency of the second pass-band changed from 14.61 GHz to 16.10 GHz. The dielectric rods' permittivity was also changed to alter the structure's overall permittivity and a frequency change from 8.1 GHz to 9.1 GHz, and 14.61 GHz to 14.74 GHz has been observed for the first and second pass-band, respectively.","PeriodicalId":297673,"journal":{"name":"2022 IEEE 2nd Ukrainian Microwave Week (UkrMW)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123861018","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}
引用次数: 0
Problematic Issues of the Accelerating Lens Deployment 加速透镜部署的问题
2022 IEEE 2nd Ukrainian Microwave Week (UkrMW) Pub Date : 2022-11-14 DOI: 10.1109/UkrMW58013.2022.10037124
V. Astapenia, Volodymyr Sokolov, P. Skladannyi
{"title":"Problematic Issues of the Accelerating Lens Deployment","authors":"V. Astapenia, Volodymyr Sokolov, P. Skladannyi","doi":"10.1109/UkrMW58013.2022.10037124","DOIUrl":"https://doi.org/10.1109/UkrMW58013.2022.10037124","url":null,"abstract":"The paper is a continuation of the earlier studies of the characteristics of accelerating metal-plate lenses (AMPL) carried out by the authors, intended for use in antenna devices of information systems. Compared to commonly used retardation lenses, they have such advantages as lightness, low weight, and manufacturing availability. A brief analysis of the results obtained earlier is presented. In the example of the frequency parameters of the drone control system, the problematic issues of expanding the range properties of the AMPL are considered. To solve this problem, it is proposed to use: (1) a combined lens consisting of alternating and located one above the other “floors” of lenses with parameters corresponding to two operating frequencies; (2) longitudinally corrugated lens plates. A variant of the method for calculating the distortions of phase distributions in the aperture of such lenses is presented. The options for controlling the maximum radiation pattern orientation are considered.","PeriodicalId":297673,"journal":{"name":"2022 IEEE 2nd Ukrainian Microwave Week (UkrMW)","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129263593","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}
引用次数: 2
Development of High-Frequency Continuous-Wave Gyrotrons for Dynamic Nuclear Polarization 用于动态核极化的高频连续波回旋管的研制
2022 IEEE 2nd Ukrainian Microwave Week (UkrMW) Pub Date : 2022-11-14 DOI: 10.1109/UkrMW58013.2022.10036954
M. Blank, S. Cauffman, K. Felch, P. Borchard
{"title":"Development of High-Frequency Continuous-Wave Gyrotrons for Dynamic Nuclear Polarization","authors":"M. Blank, S. Cauffman, K. Felch, P. Borchard","doi":"10.1109/UkrMW58013.2022.10036954","DOIUrl":"https://doi.org/10.1109/UkrMW58013.2022.10036954","url":null,"abstract":"CPI, partnered with Bruker, has been engaged in a long-standing program to develop gyrotrons for Bruker's commercial dynamic nuclear polarization (DNP) enhanced nuclear magnetic resonance (NMR) spectrometers. The Bruker-CPI development program, started more than 15 years ago, has resulted in a family of robust and reliable continuous wave (cw) high-frequency gyrotrons. The design features and measured performance of the Bruker-CPI gyrotrons at 263, 395, 527, and 593 GHz, all of which have demonstrated over 50 W cw output power in high-quality Gaussian beams, will be described.","PeriodicalId":297673,"journal":{"name":"2022 IEEE 2nd Ukrainian Microwave Week (UkrMW)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117177318","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}
引用次数: 2
Mutual Coupling Reduction Between Ultra-Wide Band Antennas for Millimeter Wave Applications 毫米波应用中超宽带天线间的相互耦合减小
2022 IEEE 2nd Ukrainian Microwave Week (UkrMW) Pub Date : 2022-11-14 DOI: 10.1109/UkrMW58013.2022.10037088
Alladi Narayana Swamy, S. Nandigama, B. M. Naik, Bharath Kunooru, D. Ramakrishna
{"title":"Mutual Coupling Reduction Between Ultra-Wide Band Antennas for Millimeter Wave Applications","authors":"Alladi Narayana Swamy, S. Nandigama, B. M. Naik, Bharath Kunooru, D. Ramakrishna","doi":"10.1109/UkrMW58013.2022.10037088","DOIUrl":"https://doi.org/10.1109/UkrMW58013.2022.10037088","url":null,"abstract":"This paper proposes a monopole antenna with an ultra-wide band (UWB) for the 5G millimeter wave applications, by enhancing the circular monopole antenna's resonant structure the crescent-shaped monopole antenna is proposed. A rectangular slot was added to the ground to improve the antenna feed and extend the antenna impedance bandwidth. The antenna is supplied by a 50-ohm microstrip line. The suggested antenna meets the -10 dB return loss bandwidth requirement from 15.2 to 57.2 GHz, according to simulation findings. The antenna gain is more than 3.4dBi in the 15GHz to 27.5GHz band and greater than 4dBi in the 27GHz to 40GHz range. Surface currents between the antennas cause mutual coupling in these sorts of antenna arrays, which lowers the system performance. Mutual coupling between antennas will be decreased by adopting metamaterial unit cell of spiral ring resonator.","PeriodicalId":297673,"journal":{"name":"2022 IEEE 2nd Ukrainian Microwave Week (UkrMW)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117278156","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}
引用次数: 0
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