Radiophysics and Quantum Electronics最新文献_第8页

New-Type Cavities for Superpower Multi-Beam Klystrons 超能多束速调管的新型腔体

IF 0.7 4区地球科学

Radiophysics and Quantum Electronics Pub Date : 2026-01-27 DOI: 10.1007/s11141-026-10441-7

A. V. Galdetskiy, N. A. Golovanov

引用次数: 0

Spin Pumping by Surface Magnetostatic Waves in Microstructures Based on Iron–Yttrium Garnet Films with (100) Crystallographic Orientation 基于（100）晶体取向铁钇石榴石薄膜的微结构表面静磁波自旋抽运

IF 0.7 4区地球科学

Radiophysics and Quantum Electronics Pub Date : 2026-01-26 DOI: 10.1007/s11141-026-10447-1

G. M Amakhanov, M. E. Seleznev, Yu. V. Nikulin, S. L. Vysotskii, V. K. Sakharov, G. M. Dudko, A. V. Kozhevnikov, Yu. V. Khivintsev, Yu. A. Filimonov

{"title":"Spin Pumping by Surface Magnetostatic Waves in Microstructures Based on Iron–Yttrium Garnet Films with (100) Crystallographic Orientation","authors":"G. M Amakhanov, M. E. Seleznev, Yu. V. Nikulin, S. L. Vysotskii, V. K. Sakharov, G. M. Dudko, A. V. Kozhevnikov, Yu. V. Khivintsev, Yu. A. Filimonov","doi":"10.1007/s11141-026-10447-1","DOIUrl":"10.1007/s11141-026-10447-1","url":null,"abstract":"Using the inverse spin Hall effect, we investigate spin pumping by traveling surface magnetostatic waves (SMSWs) in YIG/Pt structures based on YIG films with (100) crystallographic orientation. We compare the frequency dependence of the electromotive force (EMF) generated at contacts to Pt during propagation of SMSWs along the [100] and [110] crystallographic axes, corresponding to the hard and easy magnetization axes, respectively. It is shown that the overall character of this dependence is the same for different magnetization directions. However, the EMF is up to twice as large in structures magnetized along the [110] axis. This enhancement is attributed to the presence of anisotropic backward volume spin waves in the SMSW spectrum of such structures, characterized by van Hove singularities in the density of states. It is shown that three-magnon parametric instability does not affect the EMF ratio between structures magnetized along the [110] and [100] directions.","PeriodicalId":748,"journal":{"name":"Radiophysics and Quantum Electronics","volume":"68 2","pages":"150 - 163"},"PeriodicalIF":0.7,"publicationDate":"2026-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147342166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recommendations on Designing Wire-Grid Conical Horn Structures for Sparse Antenna Development 稀疏天线发展中线栅锥形喇叭结构设计建议

IF 0.7 4区地球科学

Radiophysics and Quantum Electronics Pub Date : 2026-01-26 DOI: 10.1007/s11141-026-10445-3

M. T.Nguyen, A. F. Alhaj Hasan, T. R. Gazizov

{"title":"Recommendations on Designing Wire-Grid Conical Horn Structures for Sparse Antenna Development","authors":"M. T.Nguyen, A. F. Alhaj Hasan, T. R. Gazizov","doi":"10.1007/s11141-026-10445-3","DOIUrl":"10.1007/s11141-026-10445-3","url":null,"abstract":"The method of moments is widely used for analyzing and designing of various types of antennas with wire grids. Some design recommendations are known, but they are not suitable for the initial wire grids, to which the recently proposed optimal current grid approximation is applicable to create sparse antennas with a lower mass. In this work, new recommendations are proposed for the design of initial wire-grid (WG) structures for conical horn antennas with various equivalent excitation models. The recommendations form new design guidelines for the wire-grid conical horn antennas with different equivalent excitation models. The guidelines are verified by applying them to conical horn antennas operating in different frequency bands. The obtained antenna characteristics for the WG-structures are in good agreement with those obtained experimentally and numerically using other methods. In addition, this work presents the results of applying the modified optimal current grid approximation to the original structures designed according to the proposed recommendations for sparse structures. In special cases, these structures can be used to replace the solid metal structure, as well as the original WG-structures while maintaining the required characteristics. The results of this work allow us to quickly and accurately design original WG-structures for conical horn antennas with acceptable characteristics for efficient creation of sparse antennas.","PeriodicalId":748,"journal":{"name":"Radiophysics and Quantum Electronics","volume":"68 2","pages":"126 - 140"},"PeriodicalIF":0.7,"publicationDate":"2026-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147342121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On the Maximum Efficiency of High-Power Klystrons with a Limited Bunching Length 有限束长大功率速调管的最大效率研究

IF 0.7 4区地球科学

Radiophysics and Quantum Electronics Pub Date : 2026-01-26 DOI: 10.1007/s11141-026-10440-8

A. Yu. Baikov, O. A. Baikova

引用次数: 0

Broadband Transition Based on a Symmetrical Slot Line 基于对称槽线的宽带转换

IF 0.7 4区地球科学

Radiophysics and Quantum Electronics Pub Date : 2026-01-26 DOI: 10.1007/s11141-026-10444-4

S. B. Klyuev, V. A. Iovdalskiy, V. V. Demshevsky

引用次数: 0

Electrodynamic Models of a Lens Formed by a Photonic Crystal of Hollow Metal Cylinders 金属空心圆柱光子晶体透镜的电动力学模型

IF 0.7 4区地球科学

Radiophysics and Quantum Electronics Pub Date : 2026-01-26 DOI: 10.1007/s11141-026-10446-2

A. M. Lerer, I. V. Donets, S. M. Tsvetkovskaya, M. Danelyan

引用次数: 0

Using Additive Technologies for Rapid Prototyping of Millimeter-Wave Electromagnetic Structures 利用增材技术快速成型毫米波电磁结构

IF 0.7 4区地球科学

Radiophysics and Quantum Electronics Pub Date : 2026-01-26 DOI: 10.1007/s11141-026-10443-5

A. V. Starodubov, I. S. Ozhogin, A. A. Serdobintsev, I. O. Kozhevnikov, V. N. Titov, V. V. Galushka, I. Sh. Bakhteev, S. Yu. Molchanov, N. M. Ryskin

{"title":"Using Additive Technologies for Rapid Prototyping of Millimeter-Wave Electromagnetic Structures","authors":"A. V. Starodubov, I. S. Ozhogin, A. A. Serdobintsev, I. O. Kozhevnikov, V. N. Titov, V. V. Galushka, I. Sh. Bakhteev, S. Yu. Molchanov, N. M. Ryskin","doi":"10.1007/s11141-026-10443-5","DOIUrl":"10.1007/s11141-026-10443-5","url":null,"abstract":"The advancement of high-power miniature vacuum microelectronic devices in the millimeter-wave and terahertz ranges is very important for numerous applications in wireless high-speed communication, radar systems, electromagnetic sensing, spectroscopy, security, etc. Rapid prototyping of the pivotal electromagnetic components of these sources requires development of precise, fast, and cost-effective novel technologies. In this paper, we present the fabrication outcomes of millimeter-wave electrodynamic structures manufactured using a 3D printing via digital light processing technology, followed by metallization through magnetron sputtering. Rectangular waveguide sections for the V-band (50–75 GHz) and W-band (75–110 GHz) were fabricated, along with more intricate prototypes of periodic slow-wave structures, such as the vane-loaded waveguide structure widely used in traveling-wave tubes and backward-wave oscillators in the millimeter- and submillimeter-wave ranges. The measured cold-test electromagnetic characteristics, which demonstrate good agreement with numerical simulations, are reported.","PeriodicalId":748,"journal":{"name":"Radiophysics and Quantum Electronics","volume":"68 2","pages":"109 - 118"},"PeriodicalIF":0.7,"publicationDate":"2026-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147342170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamics of the Space-Charge Accumulation in the Electron-Optical System with the Cusp Magnetic Field of a Subterahertz Large-Orbit Gyrotron 亚太赫兹大轨道回旋管尖端磁场下电子-光学系统空间电荷积累动力学

IF 0.7 4区地球科学

Radiophysics and Quantum Electronics Pub Date : 2026-01-20 DOI: 10.1007/s11141-026-10437-3

V. N. Manuilov, Yu. K. Kalynov

引用次数: 0

Numerical Simulation Methods in the Design of High-Power Klystrons 大功率速调管设计中的数值模拟方法

IF 0.7 4区地球科学

Radiophysics and Quantum Electronics Pub Date : 2026-01-20 DOI: 10.1007/s11141-026-10438-2

V. Ya. Ivanov

引用次数: 0

Astroclimate in the Vicinity of the Hulugaisha Peak Based on the Analysis of Meteorological and Radiometric Measurements 基于气象和辐射测量分析的呼鲁盖沙峰附近的星象气候

IF 0.7 4区地球科学

Radiophysics and Quantum Electronics Pub Date : 2026-01-19 DOI: 10.1007/s11141-026-10435-5

T. A. Khabarova, P. M. Zemlyanukha, E. M. Dombek, K. V. Markov, A. C. Marukhno, A. V. Khudchenko, V. F. Vdovin

{"title":"Astroclimate in the Vicinity of the Hulugaisha Peak Based on the Analysis of Meteorological and Radiometric Measurements","authors":"T. A. Khabarova, P. M. Zemlyanukha, E. M. Dombek, K. V. Markov, A. C. Marukhno, A. V. Khudchenko, V. F. Vdovin","doi":"10.1007/s11141-026-10435-5","DOIUrl":"10.1007/s11141-026-10435-5","url":null,"abstract":"We consider various methods for estimating the optical thickness of the atmosphere based on radiometric and meteorological measurements for the region in the vicinity of the Hulugaisha peak (Buryatia, Eastern Sayans), which is one of the most promising locations for a subterahertz radio telescope. Radiometric data are compared with the results of simulating radiation transport in the Earth atmosphere based on the data from aerosounding observations, the MERRA-2 climate model, and the METEO-2 weather station. A statistical analysis of the amount of precipitated water vapor (PWV) in the vicinity of the Hulugaisha peak for 20 years (05.2004-05.2024) according to the MERRA-2 climate model is presented. The results obtained show that the area under study is characterized by a dry climate and is of interest for observations at millimeter and submillimeter wavelengths. In particular, during 80% of the year, the PWV values are <7 mm, while in the winter months the PWV is less than 1 mm for 44% of the time.","PeriodicalId":748,"journal":{"name":"Radiophysics and Quantum Electronics","volume":"68 1","pages":"16 - 24"},"PeriodicalIF":0.7,"publicationDate":"2026-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147340412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0