Physics of Wave Processes and Radio Systems最新文献_第4页

Occurrence of fluctuations in the amplitude and phase of the radio signal in a turbulent atmosphere 在紊流大气中无线电信号的振幅和相位波动的发生

Physics of Wave Processes and Radio Systems Pub Date : 2023-03-30 DOI: 10.18469/1810-3189.2023.26.1.28-37

D. S. Klyuev, A. Volobuev, S. V. Krasnov, K. A. Adyshirin-zade, T. Antipova, Natalia N. Aleksandrova

{"title":"Occurrence of fluctuations in the amplitude and phase of the radio signal in a turbulent atmosphere","authors":"D. S. Klyuev, A. Volobuev, S. V. Krasnov, K. A. Adyshirin-zade, T. Antipova, Natalia N. Aleksandrova","doi":"10.18469/1810-3189.2023.26.1.28-37","DOIUrl":"https://doi.org/10.18469/1810-3189.2023.26.1.28-37","url":null,"abstract":"Abstract Interaction of an electromagnetic wave, as the determined wave process spreading in an atmosphere and atmospheric turbulence, as stationary stochastic wave process is considered. The differential equation for eikonal fluctuations of an electromagnetic wave is received. On basis of this equation the occurrence of amplitude and a phase fluctuations of an electromagnetic wave at distribution of a radio signal into a turbulent atmosphere is investigated. In particular the differential equations for fluctuations of amplitude and a phase of the electromagnetic wave caused by turbulent pulsations of a parameter of an atmosphere refraction are received and solved. Fourier-spectra of two-point correlations of a parameter of an atmosphere refraction, amplitude and a phase of an electromagnetic wave are considered. Are received also by a method of introduction of Greens function the differential equations for these correlations are solved. On basis of the analysis of various wave ranges of an atmospheric power spectrum of turbulence the dependences of amplitude and a phase Fourier-spectra of a radio signal on parameters of an electromagnetic wave and turbulence of an atmosphere are found.","PeriodicalId":129469,"journal":{"name":"Physics of Wave Processes and Radio Systems","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121120095","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

Investigation of the electromagnetic properties of a transverse insert based on a planar layer of a chiral metamaterial in a rectangular waveguide 矩形波导中基于手性超材料平面层的横向插片的电磁特性研究

Physics of Wave Processes and Radio Systems Pub Date : 2023-03-30 DOI: 10.18469/1810-3189.2023.26.1.93-105

I. Buchnev, O. Osipov

{"title":"Investigation of the electromagnetic properties of a transverse insert based on a planar layer of a chiral metamaterial in a rectangular waveguide","authors":"I. Buchnev, O. Osipov","doi":"10.18469/1810-3189.2023.26.1.93-105","DOIUrl":"https://doi.org/10.18469/1810-3189.2023.26.1.93-105","url":null,"abstract":"The paper considers the solution of the problem of diffraction of the fundamental wave of a rectangular waveguide H10 on a planar transverse insert based on a chiral metamaterial created on the thin-wire conducting helices. To describe the chiral layer, a particular mathematical model is constructed that takes into account the properties of heterogeneity and dispersion of the permittivity and the chirality parameter of the artificial media. The well-known in physics model of Maxwell Garnett was used to take into account the heterogeneity property. To take into account the permittivity dispersion the DrudeLorentz formula was applied and for the chirality parameter was used the Condon formula. The problem of diffraction of the rectangular waveguide main wave on a planar layer of a chiral metamaterial was solved by the partial regions method and was reduced to a system of linear algebraic equations for unknown reflection and transmission coefficients. It is shown that in the presence of a transverse chiral layer in the waveguide structure, a wave of the H01 type cross-polarized with respect to the main one arises. An analysis of the frequency dependences of the moduli of the reflection and transmission coefficients of the fundamental H10 and cross-polarized H01 showed that in some narrow frequency intervals in the single-mode gap, situations arise when the fundamental wave type is replaced from H10 to H01 near resonant frequencies. The transmission line under consideration can find application in the creation of frequency selective filters and polarization converters in the microwave range.","PeriodicalId":129469,"journal":{"name":"Physics of Wave Processes and Radio Systems","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123396896","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

Mathematical models of spheroidal spiral-frame radiating structures 球面螺旋框架辐射结构的数学模型

Physics of Wave Processes and Radio Systems Pub Date : 2023-03-30 DOI: 10.18469/1810-3189.2023.26.1.38-48

D. Tabakov, Ruslan M. Valiullin

引用次数: 0

Search for the optimal shape of the envelope of a microwave pulse of a powerful generator in the maximum permissible radiation mode 在最大允许辐射模式下，寻找大功率发生器微波脉冲的最佳包络形状

Physics of Wave Processes and Radio Systems Pub Date : 2023-03-30 DOI: 10.18469/1810-3189.2023.26.1.106-115

A. Volkov

引用次数: 0

Phase frequency characteristics evaluation for E-class devices output circuits e级器件输出电路的相位频率特性评价

Physics of Wave Processes and Radio Systems Pub Date : 2022-12-31 DOI: 10.18469/1810-3189.2022.25.4.46-51

A. V. Baranov

引用次数: 0

Excitation of a rectangular resonator through communication windows in the conveyor installation of microwave heating 微波加热输送装置中通过通信窗口的矩形谐振器激励

Physics of Wave Processes and Radio Systems Pub Date : 2022-12-31 DOI: 10.18469/1810-3189.2022.25.4.88-99

M. Davidovich, A. Kobetz, K. Sayapin

{"title":"Excitation of a rectangular resonator through communication windows in the conveyor installation of microwave heating","authors":"M. Davidovich, A. Kobetz, K. Sayapin","doi":"10.18469/1810-3189.2022.25.4.88-99","DOIUrl":"https://doi.org/10.18469/1810-3189.2022.25.4.88-99","url":null,"abstract":"Abstract Based on the excitation theory of L.A. Vainstein obtained simple and convenient iterative relations for excitation of a resonator in the form of a rectangular parallelepiped with a dielectric layer through several coupling windows in its walls. Theexpansion of the field in terms of the complete system of solenoidal functions of a rectangular resonator is used. Solenoidality is due to the fact that the electric fields of excitation in the openings of rectangular waveguides on the resonator walls, fed through coaxial-waveguide transitions, are tangent to the boundaries of the heated dielectric layer. Simple formulas for expansion coefficients and calculation of fields are obtained. It is convenient to solve the obtained implicit formulas iteratively; in this case, it is possible to take into account both a linear dielectric and a nonlinear dielectric, the permittivity of which depends on the square of the electric field. The algorithm is implemented to simulate a conveyor installation of microwave heating. It is possible to modify the algorithm by introducing potential basic subsystems of functions for the case of modeling complex dielectric inclusions. The results are suitable for modeling other nonlinear inclusions, as well as in problems when using volumetric given sources instead of surface ones. For given electric fields in the coupling windows, the power entering the resonator is calculated on the basis of the Poynting vector.","PeriodicalId":129469,"journal":{"name":"Physics of Wave Processes and Radio Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131180531","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

Some features of a radio signal interaction with a turbulent atmosphere 无线电信号与湍流大气相互作用的一些特征

Physics of Wave Processes and Radio Systems Pub Date : 2022-12-31 DOI: 10.18469/1810-3189.2022.25.4.122-128

D. S. Klyuev, A. Volobuev, S. V. Krasnov, K. A. Adyshirin-zade, T. Antipova, Natalia N. Aleksandrova

引用次数: 2

How the accuracy of mobile objects positioning with GNSS affects the energy characteristics of the communication channel in 5G networks GNSS移动目标定位的精度如何影响5G网络通信信道的能量特性

Physics of Wave Processes and Radio Systems Pub Date : 2022-12-31 DOI: 10.18469/1810-3189.2022.25.4.74-78

D. D. Gabriél'yan, M. Zvezdina, Yulia A. Shokova, O. A. Lavrentev

引用次数: 0

Detection characteristics and features of signal processing of aerial objects on images of spacborne synthetic aperture radars 星载合成孔径雷达图像对空中目标的探测特性及信号处理特点

Physics of Wave Processes and Radio Systems Pub Date : 2022-12-31 DOI: 10.18469/1810-3189.2022.25.4.79-87

O. Goryachkin, A. Borisenkov, Aleksey S. Lifanov

{"title":"Detection characteristics and features of signal processing of aerial objects on images of spacborne synthetic aperture radars","authors":"O. Goryachkin, A. Borisenkov, Aleksey S. Lifanov","doi":"10.18469/1810-3189.2022.25.4.79-87","DOIUrl":"https://doi.org/10.18469/1810-3189.2022.25.4.79-87","url":null,"abstract":"The article considers the possibilities of detecting airborne moving targets by space radars with aperture synthesis using interferometry mode along the path. The method of calculating the signal-to-noise ratio, the characteristics of detecting aerial targets in the mode of selection of moving targets is described. Based on calculations, it is shown that the dynamics of the underlying surface caused by fluctuations in grass, foliage or an agitated sea surface significantly reduces the ability to detect aerial objects by space radars with aperture synthesis in the selection of moving targets mode. It is shown by the examples of existing space radars with aperture synthesis that when using the interferometry method along the path, at least 2 interferometric bases and refocusing on the marks of bright moving targets in the mode of selection of moving targets channel, the effectiveness of the detection procedure can be sufficient for practical applications. However, the region of small radial velocity values remains a blind zone for any multi-base circuit configurations and can only be reduced by increasing the energy potential of the space radars with aperture synthesis.","PeriodicalId":129469,"journal":{"name":"Physics of Wave Processes and Radio Systems","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115916134","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

Modeling of electrodynamic parameters of microwave sterilizer 微波灭菌器电动力学参数建模

Physics of Wave Processes and Radio Systems Pub Date : 2022-12-31 DOI: 10.18469/1810-3189.2022.25.4.52-58

V. Bayburin, V. Komarov, V. P. Meschanov

引用次数: 0