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A 10 GHz monolithic filter based on stripline resonators with a split conductor / I. V. Govorun, B. A. Belyaev, Ya. B. Zav'yalov [et al.] // Dokl. Phys. - 2023. - Vol. 68, Is. 12. - P. 434-439, DOI 10.1134/S1028335823120030. - Cited References: 18. - This work was carried out within the framework of Agreement no. 470 of August 30, 2022, between the Institute of Physics, Siberian Branch, Russian Academy of Sciences; the Regional Science Foundation; and JSC NPP Radiosvyaz, for a competition of scientific, technical, and innovative projects in the interests of the first climate Scientific and Educational Center "Yenisei Siberia" . - ISSN 1028-3358. - ISSN 1562-6903
Кл.слова (ненормированные):
bandpass filter -- frequency response -- return loss -- insertion loss -- impedance -- layered structure
Аннотация: The monolithic design of a compact bandpass filter X-band is made on the technology of multilayered printed circuit boards. Quarter-wave stripline resonators of the filter have two conductors divided by a layer of prepreg having low parameters that bond together the design. This eliminates the influence of the prepreg on the characteristics of the devices, ensuring good repeatability of filters in mass production. To increase the high-frequency stopband of the filter, one of the conductors of each resonator is cut in half by a transverse slit. The constructive sizes of the device were obtained by parametric synthesis using the electrodynamic analysis of its 3D model. The experimental data of the five-order filter are in good agreement with the electromagnetic simulation of filter of the 3D model. The experimental device has a central frequency of the passband of 10 GHz and a fractional bandwidth of 5.7%, and its dimensions and weight are 18.0 × 5.4 × 2.1 mm3 and 0.5 g. The important advantage of the developed design is the possibility of its installation on the board using the surface mounting method.

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Публикация на русском языке Монолитный фильтр с центральной частотой полосы пропускания 10 ГГц на полосковых резонаторах с расщепленным проводником [Текст] / И. В. Говорун, Б. А. Беляев, Я. Б. Завьялов [и др.]. - 7 с. // Доклады Академии наук. Физика, технические науки. - 2023. - Т. 513 № 1. - С. 88-94

Держатели документа:
Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russia
Siberian State University of Science and Technology, Krasnoyarsk, Russia
Siberian Federal University, Krasnoyarsk, Russia

Доп.точки доступа:
Govorun, I. V.; Говорун, Илья Валерьевич; Belyaev, B. A.; Zav'yalov, Ya. B.; Shumilov, T. Y.; Afonin, A. O.; Афонин, Алексей Олегович; Ugryumov, A. V.; Угрюмов, Андрей Витальевич; Galeev, R. G.
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A Surface Wave Excitation by a Finite Phased Plane Waveguide Array with an Impedance Flange / Komarov S.A., Scherbinin V.V. // 12th International Conference on Mathematical Methods in Electromagnetic Theory, 2008, Odesa, Ukraine, 2008. pp. 314-316

Доп.точки доступа:
Komarov, S. A.; Scherbinin, V. V.; Щербинин, Всеволод Владиславович
}
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Aplesnin, S. S.
Electronic transition, ferroelectric and thermoelectric properties of bismuth pyrostannate Bi2(Sn0.85Cr0.15)2O7 / S. S. Aplesnin, L. V. Udod, M. N. Sitnikov // Ceram. Int. - 2018. - Vol. 44, Is. 2. - P. 1614-1620, DOI 10.1016/j.ceramint.2017.10.082. - Cited References: 41. - The authors would like to thank M. Molokeev for the clarification of x-ray spectra. The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research project № 16–52-00045 bel_a. . - ISSN 0272-8842
Кл.слова (ненормированные):
Dielectric properties -- Ferroelectric properties -- Impedance -- Thermopower -- Electrical properties
Аннотация: The ferroelectric properties of bismuth pyrostannate Bi2(Sn0.85Cr0.15)2O7 in the high-temperature region are established. The linear thermal expansion coefficient, electrical resistance, impedance, I−V characteristics, capacitance, loss-angle tangent, charge, and thermopower of the investigated material are measured in the temperature range of 300−700 K at frequencies of 102−106 Hz. Anomalies of the thermal expansion coefficient and hodograph spectrum variation in the region of polymorphic phase transitions are observed. The high resistance and change of the hopping conductivity for the tunnel-emission are found. The hysteresis in the electric field dependence of polarization is established. The change in the thermopower sign with temperature is revealed. The obtained experimental data are explained in the framework of the model of migration polarization by charged chromium ions.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Akademgorodok, 50, Krasnoyarsk, Russian Federation
Siberian State Aerospace University M. F. Reshetnev, Krasnoyarsky Rabochy Av. 31, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Udod, L. V.; Удод, Любовь Викторовна; Sitnikov, M. N.; Аплеснин, Сергей Степанович
}
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Belyaev, B. A.
Impedance spectra of thin permalloy films with a nanoisland structure / B. A. Belyaev, N. A. Drokin // Phys. Solid State. - 2012. - Vol. 54, Is. 2. - P. 360-367, DOI 10.1134/S1063783412020084. - Cited References: 20. - This study was supported by the Russian Federal Targeted Program "Scientific and Scientific-Pedagogical Human Resources for the Innovative Russia in 2009-2013," the Siberian Branch of the Russian Academy of Sciences (Integration research project no. 5), and the Presidium of the Russian Academy of Sciences (project no. 21.1). . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
CAPACITANCE
Аннотация: The behavior of the impedance spectra of island permalloy films prepared through vacuum evaporation onto optically polished glass-ceramic substrates has been investigated in the frequency range from 0.0001 to 100 MHz. A resistor-capacitor model of the films has been developed and the model parameters, for which there is a good agreement with experimental data on the frequency dependences of the real and imaginary components of the impedance, have been determined. The specific features in the behavior of the electrical and physical characteristics with variations in the thickness of the sample and the gap between the measuring electrodes have been investigated. It has been found that the relative permittivity of the films under investigation reaches values E similar to 10(7)-10(8). The structural relaxation times have been calculated.

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Публикация на русском языке Беляев, Борис Афанасьевич. Спектры импеданса тонких пермаллоевых пленок с наноостровковой структурой [Текст] / Б. А. Беляев, Н. А. Дрокин // Физ. тверд. тела : Физико-технический институт им. А.Ф.Иоффе РАН, 2012. - Т. 54 Вып. 2. - С. 340-346

Держатели документа:
[Belyaev, B. A.
Drokin, N. A.] Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
[Belyaev, B. A.] Reshetnev Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia

Доп.точки доступа:
Drokin, N. A.; Дрокин, Николай Александрович; Беляев, Борис Афанасьевич
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Belyaev, B. A.
Impedance spectroscopy investigation of electrophysical characteristics of the electrode-liquid crystal interface / B. A. Belyaev, N. A. Drokin // Phys. Solid State. - 2015. - Vol. 57, Is. 1. - P. 181-187, DOI 10.1134/S1063783415010060. - Cited References:22. - This study was supported by the Siberian Branch of the Russian Academyof Sciences (integration project no. 109). . - ISSN 1063. - ISSN 1090-6460. -

РУБ Physics, Condensed Matter
Рубрики:
DIELECTRIC-PROPERTIES
CONDUCTIVITY
Аннотация: The behavior of frequency dependences of the impedance of a capacitive measuring cell with a liquid crystal has been investigated in the frequency range from 10−1 to 105 Hz. A method for determining electrophysical characteristics of the liquid crystal in the bulk and at the liquid crystal-metal electrode interface has been proposed and tested for liquid crystals of the alkyl cyanobiphenyl series, which are doped with ionic surfactants. The method is based on the use of an equivalent electrical circuit, which makes it possible to approximate the impedance spectra with the required accuracy, and also on the determination of the frequency at the singular point in the impedance spectra, at which the reactive component of the electric current flowing through the liquid-crystal cell is negligible compared to the active component.

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Публикация на русском языке Беляев, Борис Афанасьевич. Исследование электрофизических характеристик границы электрод–жидкий кристалл методом импедансной спектроскопии [Текст] / Б. А. Беляев, Н. А. Дрокин // Физ. тверд. тела : Физико-технический институт им. А. Ф. Иоффе РАН, 2015. - Т. 57 Вып. 1. - С. 170-175

Держатели документа:
Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Reshetnev Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia.

Доп.точки доступа:
Drokin, N. A.; Дрокин, Николай Александрович; Беляев, Борис Афанасьевич; Siberian Branch of the Russian Academy of Sciences [109]
}
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Belyaev, B. A.
Impedance spectroscopy investigation of liquid crystals doped with ionic surfactants / B. A. Belyaev, N. A. Drokin, A. N. Maslennikov // Phys. Solid State. - 2014. - Vol. 56, Is. 7. - P. 1455-1462, DOI 10.1134/S106378341407004X. - Cited References: 20. - This study was supported by the Siberian Branch of the Russian Academy of Sciences (integration project no. 109). . - ISSN 1063-7834. - ISSN 1090-6460

РУБ Physics, Condensed Matter

Аннотация: The effect of a direct-current (dc) electric field on the electrophysical characteristics of nematic liquid crystals of the alkyl cyanobiphenyl series nCB (n = 6-8) and the multicomponent liquid-crystal mixture MB-1, which are doped with ionic surfactants, has been investigated using impedance spectroscopy. It has been found that the impedance spectra depend substantially on the dc bias voltage applied to the sample. The approximation of the measured spectra with specially developed equivalent circuits of the measuring cell with a sample has made it possible to determine the capacitance of the electric double layer and the electrical conductivity of the samples, as well as the mobility, concentration, and diffusion coefficient of the ions. It has been shown that a region of the space charge is formed in the frequency range f ˂ 100 Hz near the electrodes of the measuring cell with a liquid-crystal sample, which leads to an increase in the active (resistive) and reactive (capacitive) components of the impedance.

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Публикация на русском языке Беляев, Борис Афанасьевич. Исследование методом импедансной спектроскопии допированных ионным сурфактантом жидких кристаллов [Текст] / Б. А. Беляев, Н. А. Дрокин, А. Н. Масленников // Физ. тверд. тела : Физико-технический институт им. А. Ф. Иоффе РАН, 2014. - Т. 56 Вып. 7. - С. 1403–1410

Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660041, Russia
Reshetnev Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia

Доп.точки доступа:
Drokin, N. A.; Дрокин, Николай Александрович; Maslennikov, A. N.; Масленников, Алексей Николаевич; Беляев, Борис Афанасьевич; Siberian Branch of the Russian Academy of Sciences [109]
}
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Belyaev, B. A.
Impedance spectroscopy study of the electrical properties of cation-substituted barium hexaaluminate ceramics / B. A. Belyaev, N. A. Drokin, V. A. Poluboyarov // Phys. Solid State. - 2018. - Vol. 60, Is. 2. - P. 274-280, DOI 10.1134/S1063783418020063. - Cited References:18 . - ISSN 1063-7834. - ISSN 1090-6460

РУБ Physics, Condensed Matter
Рубрики:
DIELECTRIC-RELAXATION
LIQUID-CRYSTALS
SPECTRA
Аннотация: We report on the behavior of frequency and temperature dependences of the impedance of a measuring cell in the form of a parallel-plate capacitor filled with barium hexaaluminate ceramics with four aluminum cations replaced by iron (BaO · 2Fe2O3 · 4Al2O3). The measurements have been performed in the frequency range of 0.5–108 Hz at temperatures of 20-375°C. A technique for determining the electrical properties of the investigated ceramics is proposed, which is based on an equivalent electric circuit allowing the recorded impedance spectra to be approximated with sufficiently high accuracy. The established spectral features are indicative of the presence of two electric relaxation times different from each other by three orders of magnitude. This fact is explained by the difference between the charge transport processes in the bulk of crystallites and thin intercrystallite spacers, for which the charge activation energies have been determined.

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Публикация на русском языке Беляев, Борис Афанасьевич. Исследование электрофизических характеристик катион-замещенной керамики гексаалюмината бария методом импедансной спектроскопии [Текст] / Б. А. Беляев, Н. А. Дрокин, В. А. Полубояров // Физ. тверд. тела. - 2018. - Т. 60 Вып. 2. - С. 269–275

Держатели документа:
Russian Acad Sci, Kirensky Inst Phys, Fed Res Ctr KSC SB RAS, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia.
Russian Acad Sci, Inst Solid State Chem & Mechanochem, Siberian Branch, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Drokin, N. A.; Дрокин, Николай Александрович; Poluboyarov, V. A.; Беляев, Борис Афанасьевич
}
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    Design of a multibeam metasurface antenna for LEO satellite communications payload / A. V. Chesnitskiy, A. N. Kosmynin, K. N. Kosmynina, K. V. Lemberg // Eng. Res. Express. - 2022. - Vol. 4, Is. 4. - Ст. 045025, DOI 10.1088/2631-8695/aca318. - Cited References: 32. - The experimental research was carried out with the financial support of the RFBR, the Government of the Krasnoyarsk Territory and the Krasnoyarsk Regional Science Foundation within the framework of the scientific project 20–47–243002 . - ISSN 2631-8695
   Перевод заглавия: Разработка многолучевой антенны на основе метаповерхности для низкоорбитальных спутниковых группировок
Кл.слова (ненормированные):
metasuface antennas -- multibeam -- anisotropic impedance -- LEO satellite canstellations -- software defined RAN -- 6G networks
Аннотация: In this paper, we propose a novel method for synthesizing a multibeam metasurface antenna (MSA) for use in a space application - a payload component of a small satellite as part of a low Earth orbit (LEO) satellite communication constellation. MSA is synthesized using the holographic technique with a divergent phase distribution. Using this method, a low-cost multi-beam Ku-band antenna with seven flattened beams is developed. The results of the numerical simulation and experimental study of the proposed seven-beam MSA were presented. The gain of each beam is about 25 dBi, the aperture efficiency of the MSA is ∼40%. Each individual beam had a separate feed point and its own inclination angle (0°, ±3.5°, ±7°, ±10.5°). This paper shows that the presented MSA is not inferior in its characteristics to similar solutions, but is more compact and lighter, and also allows the formation of complex radiation patterns.

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Держатели документа:
Rzhanov Institute of Semiconductor Physics, Russian Academy of Sciences, Siberian Branch, Novosibirsk, Russia
MatrixWave LLC, Moscow, Russia
Skolkovo Institute of Science and Technology, Moscow, Russia
Federal Research Center 'Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences', Krasnoyarsk, Russia

Доп.точки доступа:
Chesnitskiy, A. V.; Kosmynin, A. N.; Kosmynina, K. N.; Lemberg, K. V.; Лемберг, Константин Вячеславович
}
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Dielectric and transport properties, electric polarization at the sequential structural phase transitions in iron-substituted bismuth pyrostannate / S. S. Aplesnin, L. V. Udod, M. N. Sitnikov, O. B. Romanova // Ceram. Int. - 2021. - Vol. 47, Is. 2. - P. 1704-1711, DOI 10.1016/j.ceramint.2020.08.287. - Cited References: 33. - The reported study was funded by Russian Foundation for Basic Research project № 20-52-00005 Bel_a . - ISSN 0272-8842
Кл.слова (ненормированные):
Dielectric properties -- Impedance -- Electrical conductivity -- Electric polarization -- Thermopower
Аннотация: The electrical characteristics including the electrical resistance, impedance, I–V characteristics, capacitance, dissipation factor, and thermoelectric power of the Bi2Sn2-хFeхO7 (х = 0.1, 0.2) stannates have been investigated in the temperature range of 100–600 K at frequencies of 102–106 Hz. The paramagnetic contribution of electrons to the dynamic magnetic susceptibility has been established. The conductivity mechanism of the compounds has been found from the I–V characteristics and the change in the carrier sign has been determined from the thermoelectric power. The hysteresis of the I–V curves, charge transfer currents and polarization current have been observed in the Bi2Sn1·8Fe0·2O7 compound. A nonlinear field dependence of the polarization in the orthorhombic phase has been found. The correlation between the obtained characteristics and the phase structure transitions has been established. Two relaxation channels and activation energy have been found using the Debye model. The hysteretic I–V characteristics have been explained using a model of the electronic structure and the dipole and migration polarization.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Akademgorodok, 50, Krasnoyarsk, 660036, Russian Federation
Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, 660037, Russian Federation

Доп.точки доступа:
Aplesnin, S. S.; Аплеснин, Сергей Степанович; Udod, L. V.; Удод, Любовь Викторовна; Sitnikov, M. N.; Romanova, O. B.; Романова, Оксана Борисовна
}
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10.

Effect of electrode material on impedance spectra of metal-polyethylene structures with carbon nanotubes / N. A. Drokin [et al.] // Phys. Solid State. - 2012. - Vol. 54, Is. 4. - P. 844-848, DOI 10.1134/S1063783412040063. - Cited References: 15. - This study was supported by the Ministry of Education and Science of the Russian Federation within the framework of the Russian Federal Targeted Program "Scientific and Scientific-Pedagogical Human Resources for the Innovative Russia in 2009-2011" and the Presidium of the Russian Academy of Sciences (integration project no. 27.1). . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
SPECTROSCOPY
Аннотация: The effect of an electrode material on electrical properties of a composite material based on super-high-molecular polyethylene (SHMPE) filled with carbon nanotubes has been studied using impedance spectroscopy. Using the method of replacing the sample by an equivalent electric circuit, it has been found that, depending on the electrode material, a blocking barrier with high active resistance and a space charge region adjacent to it arise in the interface region. It has been shown that the barrier height is controlled by surface electronic states of SHMPE and weakly depends on the electron work function of metal electrodes (Bardeen barrier). The characteristic times of electrical relaxation characterizing bulk and interface regions of the composite under study have been determined.

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Публикация на русском языке Влияние материала электродов на импедансные спектры структур металл-полиэтилен с углеродными нанотрубками [Текст] / Н. А. Дрокин [и др.] // Физ. тверд. тела : Физико-технический институт им. А.Ф.Иоффе РАН, 2012. - Т. 54 вып. 4. - С. 791-796

Держатели документа:
[Drokin, N. A.
Glushchenko, G. A.
Osipova, I. V.
Maslennikov, A. N.
Churilov, G. N.] Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
[Drokin, N. A.] Reshetnev Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
[Kokourov, G. A.] Siberian Fed Univ, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Drokin, N. A.; Дрокин, Николай Александрович; Kokourov, G. A.; Glushchenko, G. A.; Глущенко, Гарий Анатольевич; Osipova, I. V.; Осипова, Ирина Владимировна; Maslennikov, A. N.; Масленников, Алексей Николаевич; Churilov, G. N.; Чурилов, Григорий Николаевич
}
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