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## Waveguide Structures with Magnetic Walls on the Basis of the Mushroom-shaped Metamaterials

P. 175-179.

Blyakhman L. G., Gromov E., Onosova I. V. et al., Physics Letters A 2017 Vol. 381 No. 17 P. 1490-1492

The dynamics of a two-component Davydov-Scott (DS) soliton with a small mismatch of the initial location or velocity of the high-frequency (HF) component was investigated within the framework of the Zakharov-type system of two coupled equations for the HF and low-frequency (LF) fields. In this system, the HF field is described by the linear Schrödinger ...

Added: February 3, 2017

Vishnyakov G., Yurin A., Minaev V. et al., Metrologia 2023 Vol. 60 No. 4 Article 045007

We present a method for measuring the refractive index (RI) and spectral characteristics of transparent triangular prisms based on the minimum deviation technique. The proposed method has been developed to automatically measure RI simultaneously for three different wavelengths to determine the spectral dependence of RI. A high precision dynamic goniometer with a He-Ne ring laser ...

Added: June 28, 2023

Gromov E., Morozov V. P., Tyutin V. V., Труды НГТУ им. Р.Е. Алексеева 2010 № 4 (83) С. 40-49

The interaction of short single-component vector solitons in the frame of the coupled third–order nonlinear Schrodinger equations taking into account third–order linear dispersion, self–stepping, self–stimulated Ramanscattering, cross–stepping and cross–stimulated Raman-scattering terms is considered. Conditions of reflection and propagation of the solitons through each other and also the condition of oscillator interaction (vector breather) are obtained. ...

Added: May 21, 2012

Abrashkin A. A., Gromov E., Tyutin V. V., Труды НГТУ им. Р.Е. Алексеева 2010 № 1 (80) С. 36-42

Propagation of the short vector envelope solitons in a inhomogeneous medium with linear potential in coupled third–order nonlinear Shrodinger equations frame is considered. Explicit vector soliton solution is obtained. The explicit solution for the solitons trajectories is studied. In particular cases this solitons solution can be reduced as to the short scalar soliton solution on ...

Added: May 21, 2012

Pchelnikov Y., Yelizarov (Elizarov) A. A., IEEE Transactions on Electron Devices 2017 Vol. 64 No. 4 P. 1787-1792

A model of the traveling-wave tube (TWT) that includes a magnetic plate with increased permeability and a metal screen parallel to the plate is considered. The dispersion equation in the presence of a homogeneous electron beam (e-beam) filling the space between the plate and the screen is derived. The method of differentiation of the dispersion ...

Added: March 30, 2017

Tager A., Solntsev V. A., Радиотехника и электроника 2011 Т. 56 № 4 С. 389-398

The effect of dielectric supports on the slowing factor and dispersion of the helical line in TWT is considered. A method for the calculation of the slowing down in the helical line with the complicated configuration of the dielectric supports is proposed. A procedure for the experimental study of dispersion in the helical slow_wave system ...

Added: April 12, 2012

Galkina E. G., Lerman L., Zaspel C. E. et al., JETP Letters 2019 Vol. 110 No. 7 P. 481-486

The motion of domain walls in GdFeCo-type ferrimagnets near the point of compensation of sublattice spins s1 and s2, when the effects of the exchange increase in the limiting wall velocity take place, is theoretically studied. The energy E and momentum P of the wall are determined and the dispersion relation E = E(P) is derived. It is found that some walls become unstable at ...

Added: March 12, 2020

Romanov V. G., Nazarov A., Journal of Applied and Industrial Mathematics (перевод журналов "Сибирский журнал индустриальной математики" и "Дискретный анализ и исследование операций") 2012 Vol. 6 No. 4 P. 460-468

Under study is the problem of finding the kernel and the index of dielectric permeability for the system of integrodifferential electrodynamics equations with wave dispersion. We consider a direct problem in which the external pulse current is a dipole located at a point y on the boundary ∂B of the unit ball B. The point ...

Added: February 4, 2013

Blyakhman L. G., Morozov V. P., Tyutin V. V., Труды НГТУ им. Р.Е. Алексеева 2016 № 3 (114) С. 9-15

Цель работы: Исследована динамика двухкомпонентных (векторных) солитонов Давыдова-Скотта(ДС) при пространственно-скоростном рассогласовании высокочастотных (ВЧ) и низкочастотных (НЧ) компонент. Рассмотрение проведено в рамках Захаровского типа системы двух связанных уравнений для ВЧ и НЧ поля. В этой системе ВЧ поле описывается линейным уравнением Шредингера с переменным во времени и пространстве потенциалом, вызванным НЧ компонентой. НЧ компонента в этой ...

Added: October 5, 2016

Mashkova M. A., A. A. Yelizarov, A. A. Skuridin et al., , in : 2023 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO). : IEEE, 2023. P. 1-5.

The significance of the polarization state of propagating electromagnetic waves is profound in domains such as radiolocation, radio and satellite communications, and related scientific and technological disciplines. The contemporary demand is for increasingly efficient waveguide polarizers with simplified structure and improved mass-dimensional characteristics. This study introduces a model for a waveguide polarizer employing a rectangular ...

Added: October 21, 2023

Aseeva N., Gromov E., Tyutin V. V., Physics Letters A 2007 No. 363 P. 411-413

The dynamics of short envelope solitons in media with controlled dispersion is investigated in the framework of the third-order nonlinear Schrödinger equation. Evolution of the solitons amplitude is analyzed in the adiabatic approximation. The existence of short envelope solitons independent from linear dispersion inhomogeneity is shown. ...

Added: June 9, 2012

Gromov E., Solycheva O. M., Tyutin V. V., Труды НГТУ им. Р.Е. Алексеева 2011 № 1 (86) С. 44-52

In the frame of the third-order nonlinear wave dispersion theory the equation of motion of a vector wave packets mass center taken in to account arbitrary inhomogeneity profile is obtained. As short vector wave packets localized motion as infinite motion is shown. Short vector wave packets localizations area can be as bigger as smaller in ...

Added: May 21, 2012

Evgeny Gromov, Malomed B., Chaos 2017 Vol. 27 No. 11 P. 113107-1-13107-13

New two-component soliton solutions of the coupled high-frequency (HF) - low-frequency (LF) system, based on Schrödinger - Korteweg - de Vries (KdV) system with the Zakharov's coupling, are obtained for arbitrary relative strengths of the nonlinearity and dispersion in the LF component. The complex HF field is governed by the linear Schrödinger equation with a ...

Added: October 24, 2017

Pchelnikov Y., Yelizarov (Elizarov) A. A., , in : Proceedings of the 18th IEEE International Vacuum Electronic Conference (IVEC-2017), London, ISBN 978-1-5090-5916-4/17. : Institute of Electrical and Electronics Engineers, 2017. P. 10-11.

A TWT model formed by a meta-magnetic plate and a metal screen is offered and analyzed. The dispersion equation of the model in the presence of a homogeneous electron beam filling the space between the plate and the screen is derived and solved. The coupling and depression coefficients are calculated by the method of differentiation ...

Added: May 3, 2017

Малинова О. Е., Сидорова Т. В., Yelizarov (Elizarov) A. A. et al., , in : 2018 Systems of Signals Generating and Processing in the Field of on Board Communications, IEEE Conference #43917, Moscow Technical University of Сommunications and Informatics. : IEEE, 2018. P. 1-3.

Waveguide termination modeling with a mushroom-shaped wall were carried out. Voltage standingwave
ratio (VSWR) and reflection coefficient (S11) frequency dependencies were obtained. High values of the mushroomshaped structure unloaded quality factor are the main advantage of explored design. The using of distributed LC resonant circuit with dimensions which significantly smaller than wavelength allows creating a compact ...

Added: May 4, 2018

Yelizarov (Elizarov) A. A., Nazarov I., Skuridin A. et al., , in : 2021 Systems of signals generating and processing in the field of on board communications. : IEEE, 2021. P. 1-4.

Added: September 30, 2021

Yurin A., Вишняков Г. Н., Minaev V., Компьютерная оптика 2024 Т. 48 № 2 С. 225-230

Dispersion characteristics of optical glass are considered. An approach to research of dispersion characteristics of optical glass is proposed, requiring the measurement of the refractive index at only three wavelengths, which simplifies the measurement process compared with the use of the widely used Sellmeier equation. An approximation function for the refractive index of optical glass ...

Added: January 2, 2024

Nazarov A., Блудов Д. А., Вихлянцев П. С. et al., Телекоммуникации 2015 № 2 С. 10-16

For probabilistic metric developed method experimental evaluation of the quality of services from the private offices of the state portals in the condition of uniformity of measurements and the formation of optimal plans, measurements with a given performance criterion of minimum amount of repeated measurements ...

Added: December 8, 2015

Yelizarov (Elizarov) A. A., Nazarov I., Sidorova T. et al., , in : SYNCHROINFO 2018 Systems of Signal Synchronization, Generating and Processing in Telecommunications, IEEE Conference # 43613. : IEEE, 2018. P. 122-124.

The scientific paper is dedicated to the investigation of a rectangular waveguide R32 type with magnetic wall of mushroom-shaped metamaterial supplemented by a dielectric substrate. The computer model of the waveguide filter under consideration and its quantitative characteristics of S-parameters and voltage standing wave ratio received are presented. All collected data are appropriately organized in ...

Added: September 4, 2018

Gromov E., Tyutin V. V., Aseeva N., Radiophysics and Quantum Electronics 2012 Vol. 55 No. 3 P. 184-197

We study interaction of different-polarization single-component vector solitons of the envelope function in anisotropic media within the framework of the system of two coupled third-order nonlinear SchrЁodinger equations which allow for the third-order linear dispersion, nonlinear dispersion, nonlinear cross-phase modulation, and cross-nonlinear dispersion. The regimes of mutual reflection, passage, and asymptotic approach of the solitons ...

Added: November 13, 2012

Blyakhman L. G., Gromov E., Malomed B. A. et al., Chaos, Solitons and Fractals 2018 No. 117 P. 264-268

The dynamics of two-component solitons with a small spatial displacement of the high-frequency (HF) component relative to the low-frequency (LF) one is investigated in the framework of the Zakharov-type system. In this system, the evolution of the HF field is governed by a linear Schrödinger equation with the potential generated by the LF field, while ...

Added: November 12, 2018