Physics of Wave Processes and Radio Systems最新文献_第10页

Reflection of waves from a mobile elastic layer in a multimode waveguide 多模波导中来自可移动弹性层的波反射

Physics of Wave Processes and Radio Systems Pub Date : 2021-09-06 DOI: 10.18469/1810-3189.2021.24.2.73-78

E. S. Ustinova, Е.С. Устинова, V. I. Volovach, В И Воловач, T. Antipova, Т А Антипова, Kaira A. Adishirin-Zade, К А Адыширин-Заде

{"title":"Reflection of waves from a mobile elastic layer in a multimode waveguide","authors":"E. S. Ustinova, Е.С. Устинова, V. I. Volovach, В И Воловач, T. Antipova, Т А Антипова, Kaira A. Adishirin-Zade, К А Адыширин-Заде","doi":"10.18469/1810-3189.2021.24.2.73-78","DOIUrl":"https://doi.org/10.18469/1810-3189.2021.24.2.73-78","url":null,"abstract":"Waveguide structures are used to transmit energy and information signals in a wide range of wavelengths and, in terms of wave-guiding physical properties, usually have mutual (identical) properties in forward and backward directions. The asymmetry of the structure and external influences can often cause non-reciprocity of structures for waves, propagating in mutually opposite directions (this property, although limited, is already used in the so-called nonreciprocal devices of microwave, EHF and optical ranges such as ferrite valves, circulators, phase shifters). At the same time, the nonreciprocal properties of wave-guiding structures, independent of their physical nature, were not considered. It is found, that the motion of the medium filling the acoustic waveguide leads to nonreciprocity of its parameters in the forward and backward directions. The degree of nonreciprocity is proportional to the velocity of the medium. The velocity of the medium also affects the propagation velocity of acoustic waves and leads to a change in the critical frequencies or critical wavelengths of the waveguide modes. As the velocity of the medium increases, the number of modes for which the propagation condition is satisfied increases as well.","PeriodicalId":129469,"journal":{"name":"Physics of Wave Processes and Radio Systems","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124220476","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: 1

Influence of the switching frequency of the switch and the amplitude of the reference voltage of a pulsed voltage regulator of the lowering type on its stability 开关的开关频率和基准电压幅值对降压型脉冲稳压器稳定性的影响

Physics of Wave Processes and Radio Systems Pub Date : 2021-09-06 DOI: 10.18469/1810-3189.2021.24.2.103-108

Danil L. Myasnikov, Д Л Мясников, Roman S. Demidov, Р С Демидов, Y. Sokolova, Юлия Васильевна Соколова

{"title":"Influence of the switching frequency of the switch and the amplitude of the reference voltage of a pulsed voltage regulator of the lowering type on its stability","authors":"Danil L. Myasnikov, Д Л Мясников, Roman S. Demidov, Р С Демидов, Y. Sokolova, Юлия Васильевна Соколова","doi":"10.18469/1810-3189.2021.24.2.103-108","DOIUrl":"https://doi.org/10.18469/1810-3189.2021.24.2.103-108","url":null,"abstract":"On the basis of classical stability criteria, using the expressions of the transfer function, according to the block diagram, the stability of the impulse controller with feedback is estimated. The influence of the switching frequency of the switch and the amplitude of the reference voltage on the stability of a pulsed voltage regulator of a lowering type with deterministic parameters of the system is analyzed. In accordance with the Nyquist criterion for the transfer function of an open-loop system, both stability and phase stability margins for a closed-loop system can be estimated. When simulating the operation of the device, the phase stability margin was obtained, according to the Nyquist criterion, which is с = Н = 7. An increase in the sawtooth voltage is not a desirable phenomenon, which, although it increases the margin of stability, however, reduces stability. Moreover, the dependence of the ripple, affecting the stability of operation, on the amplitude of the sawtooth voltage is not a predictable value and takes on a random value.","PeriodicalId":129469,"journal":{"name":"Physics of Wave Processes and Radio Systems","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127033797","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 model of delay based on a system with gamma distribution 基于伽玛分布系统的延迟数学模型

Physics of Wave Processes and Radio Systems Pub Date : 2021-09-06 DOI: 10.18469/1810-3189.2021.24.2.62-67

V. Tarasov, В Н Тарасов

引用次数: 0

Development of a phased array antenna powered by Rotman printed lens for a mobile satellite communication terminal 用于移动卫星通信终端的罗特曼印刷透镜相控阵天线的研制

Physics of Wave Processes and Radio Systems Pub Date : 2021-09-06 DOI: 10.18469/1810-3189.2021.24.2.88-102

Y. Pasternak, Юрий Геориевич Пастернак, V. Pendyurin, В А Пендюрин, K. S. Safonov, К С Сафонов, S. Fedorov, Сергей Михайлович Федоров

引用次数: 0

Bifurcation processes in pulse voltage regulator 脉冲稳压器中的分岔过程

Physics of Wave Processes and Radio Systems Pub Date : 2021-09-06 DOI: 10.18469/1810-3189.2021.24.2.109-112

Danil L. Myasnikov, Y. Sokolova

引用次数: 0

Calculated estimation of electromagnetic compatibility of radio-electronic means of space systems and complexes 空间系统和综合体无线电电子设备电磁兼容性的计算估计

Physics of Wave Processes and Radio Systems Pub Date : 2021-09-06 DOI: 10.18469/1810-3189.2021.24.2.49-54

Yevgeny E. Krivobokov, Е Э Кривобоков

{"title":"Calculated estimation of electromagnetic compatibility of radio-electronic means of space systems and complexes","authors":"Yevgeny E. Krivobokov, Е Э Кривобоков","doi":"10.18469/1810-3189.2021.24.2.49-54","DOIUrl":"https://doi.org/10.18469/1810-3189.2021.24.2.49-54","url":null,"abstract":"This article presents the methods of complex computational and analytical assessment of ensuring electromagnetic compatibility of technical means (electrical, electronic and radio-electronic means of launch vehicles and spacecraft). These methods allow us to conduct a comprehensive computational and analytical assessment of the electromagnetic compatibility of the technical means of rocket and space technology, which in its essence allows us to assess the mutual influence of the technical means of rocket and space technology already at the design stage of rocket and space technology objects. The analysis of the results of the assessment of the electromagnetic compatibility of the technical means of rocket and space technology allows us to develop organizational and technical measures aimed at ensuring the electromagnetic compatibility of the technical means of rocket and space technology at all stages of the life cycle of objects of rocket and space technology. To assess the electromagnetic compatibility of the technical means of rocket and space technology, an integrated approach was chosen due to the large dimension of the initial data and the variety of possible variants of interference penetration.","PeriodicalId":129469,"journal":{"name":"Physics of Wave Processes and Radio Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130222458","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

Spectral expansion method for analysis of a system with shifted Erlang and hyper-Erlang distributions 具有偏移Erlang和超Erlang分布的系统的谱展开分析方法

Physics of Wave Processes and Radio Systems Pub Date : 2021-09-06 DOI: 10.18469/1810-3189.2021.24.2.55-61

V. Tarasov, В Н Тарасов, N. Bakhareva, Н Ф Бахарева

引用次数: 0

Generalization of the Fourier problem of temperature waves in half-space 半空间温度波傅里叶问题的推广

Physics of Wave Processes and Radio Systems Pub Date : 2021-09-06 DOI: 10.18469/1810-3189.2021.24.2.13-21

Anatoly M. Afanasyev, Y. Bakhracheva

引用次数: 0

Point spread function of a four-wave radiation converter in a multimode waveguide with Kerr nonlinearity 克尔非线性多模波导中四波辐射变换器的点扩展函数

Physics of Wave Processes and Radio Systems Pub Date : 2021-05-06 DOI: 10.18469/1810-3189.2021.24.1.15-21

E. V. Vorob’eva, Е.В. Воробьева, V. V. Ivakhnik, В В Ивахник, D. R. Kapizov, Д Р Капизов, V. I. Nikonov, В И Никонов

{"title":"Point spread function of a four-wave radiation converter in a multimode waveguide with Kerr nonlinearity","authors":"E. V. Vorob’eva, Е.В. Воробьева, V. V. Ivakhnik, В В Ивахник, D. R. Kapizov, Д Р Капизов, V. I. Nikonov, В И Никонов","doi":"10.18469/1810-3189.2021.24.1.15-21","DOIUrl":"https://doi.org/10.18469/1810-3189.2021.24.1.15-21","url":null,"abstract":"An expression is obtained for the point spread function of a four-wave radiation converter in a multimode waveguide with Kerr nonlinearity, taking into account the transfer of energy from the object wave to the signal wave and vice versa. For single-mode pump waves, the presence of generation points is shown and conditions are found on the waveguide parameters, characteristics of the interacting waves, under which the generation condition is realized. In the vicinity of the generation points, the shape of the point spread function is determined by one of the waveguide modes, the number of which coincides with the number of the pump wave mode. For a four-wave radiation converter in a waveguide with infinitely conducting surfaces, the quality of the wavefront conjugation near the second generation point coincides with the quality of the wavefront conjugation at a low reflection coefficient. For a four-wave radiation converter in a parabolic waveguide near the second and next generation points, the shape of the point spread function is determined by one of the waveguide modes.","PeriodicalId":129469,"journal":{"name":"Physics of Wave Processes and Radio Systems","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132390557","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

Thin-wire radiating structures with double symmetry 具有双重对称的细线辐射结构

Physics of Wave Processes and Radio Systems Pub Date : 2020-12-27 DOI: 10.18469/1810-3189.2020.23.3.56-61

D. Tabakov, S. Morozov, V. A. Kurakov

引用次数: 0