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A Bandpass Filter Based on Dielectric Layers with a Strip Conductor Subwavelength Grating at Their Interfaces / B. A. Belyaev, V. V. Tyurnev, A. S. Voloshin [et al.] // Dokl. Phys. - 2020. - Vol. 65, Is. 9. - P. 343-348, DOI 10.1134/S1028335820090013. - Cited References: 12. - This study was supported by the Ministry of Science and Higher Education of the Russian Federation, state assignment no. FEFE-2020-0013 “Development of the Theory of Self-Configurable Machine-Learning Algorithms for Simulating and Predicting Characteristics of Complex Systems” . - ISSN 1028-3358
Кл.слова (ненормированные):
frequency response -- return loss -- passband filter -- insertion loss
Аннотация: The design of a multilayer bandpass filter has been investigated, in which each of the half-wavelength resonators consists of two dielectric layers with outer strip conductor gratings in the form of square grids and inner ones in the form of square patches. The grids serve as mirrors with specified reflective properties, which ensure optimal couplings of the outer resonators with free space and optimal coupling between the resonators. The patch gratings make it possible to tune the resonator eigenfrequency during the filter synthesis. The efficiency of the quasi-static calculation of the frequency response for the layered structure is shown for the case of a lattice period smaller than the wavelength in the dielectric and much smaller than the layer thickness. Since the calculation does not require much computing power, the parametric synthesis of the device can be performed on a conventional personal computer. The measured characteristics of the prototype of the synthesized third-order filter with a fractional passband width of ∼10% and a central passband frequency of ∼10.6 GHz are in good agreement with the calculation. The proposed design allows one to fabricate multilayer panels radio transparent in a certain frequency band for hiding microwave antennas.

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Публикация на русском языке Полосно-пропускающий фильтр из диэлектрических слоев с субволновыми решетками полосковых проводников на границах [Текст] / Б. А. Беляев, В. В. Тюрнев, А. С. Волошин [и др.] // Доклады Академии наук. Физика, технические науки. - 2020. - Т. 494 № 1. - С. 75-81

Держатели документа:
Kirensky Institute of Physics, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Siberian State University of Science and Technology, Krasnoyarsk, 660014, Russian Federation

Доп.точки доступа:
Belyaev, B. A.; Беляев, Борис Афанасьевич; Tyurnev, V. V.; Тюрнев, Владимир Вениаминович; Voloshin, A. S.; Волошин, Александр Сергеевич; Leksikov, An. A.; Лексиков, Андрей Александрович; Galeev, R. G.; Shabanov, V. F.; Шабанов, Василий Филиппович
}
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A Bandpass Filter–Polarizer Based on a Dielectric Multilayer with Strip Conductor Gratings / B. A. Belyaev, V. V. Tyurnev, A. S. Voloshin [et al.] // Dokl. Phys. - 2020. - Vol. 65, Is. 7. - P. 225-229, DOI 10.1134/S1028335820050067. - Cited References: 10. - This study was financially supported by the Ministry of Science and Higher Education of the Russian Federation in the implementation of the integrated project “Creation of a production of earth stations of advanced satellite communications systems to ensure the coherence of hard-to-reach, northern and Arctic territories of Russian Federation,” implemented with the participation of the Federal Research Center “Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences” (agreement number 075 -11-2019-078 dated 13.12.2019) . - ISSN 1028-3358
Кл.слова (ненормированные):
frequency response -- return loss -- bandpass filter -- insertion loss
Аннотация: A new design of a multilayer bandpass filter is proposed, in which each resonator consists of two identical dielectric layers with parallel strip conductor gratings on their outer surfaces and an orthogonal strip conductor grating between the layers. The filter designed on the basis of crossed gratings works simultaneously as a polarizer transparent in a specified frequency band if the electric field vector of a wave is parallel to the outer strip conductors but reflects waves with an orthogonal polarization. The data from a numerical electrodynamic analysis of a 3D model of the proposed device agree well with the results of the measurements performed on the fifth-order filter–polarizer prototype with a relative bandwidth of 14% and a central frequency of 13.4 GHz. The microwave power loss in the filter passband is ~1.2 dB under parallel polarization of the electromagnetic wave and more than 40 dB under orthogonal polarization.

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Публикация на русском языке Полосно-пропускающий фильтр-поляризатор на диэлектрической слоистой структуре с решетками полосковых проводников [Текст] / Б. А. Беляев, В. В. Тюрнев, А. С. Волошин [и др.] // Доклады Академии наук. Физика, технические науки. - 2020. - Т. 493 № 1. - С. 5-10

Держатели документа:
Kirenskii Institute of Physics, Krasnoyarsk Science Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Siberian State University of Science and Technology, Krasnoyarsk, 660014, Russian Federation

Доп.точки доступа:
Belyaev, B. A.; Беляев, Борис Афанасьевич; Tyurnev, V. V.; Тюрнев, Владимир Вениаминович; Voloshin, A. S.; Волошин, Александр Сергеевич; Leksikov, An. A.; Лексиков, Андрей Александрович; Galeev, R. G.; Shabanov, V. F.; Шабанов, Василий Филиппович
}
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    A dielectric model at a frequency of 1.4GHz for frozen mineral soils in the temperature range −1 to −30°C / V. L. Mironov [и др.] // Progr. Electromag. Res. Symp. (PIERS) : Proceedings. - 2016. - P. 2518-2522, DOI 10.1109/PIERS.2016.7735031. - References: 5. - The study was supported by a grant from the Russian Foundation for Basic Research (project No. 16-05-00572)
   Перевод заглавия: Диэлектрическая модель на частоте 1,4 ГГц для мерзлых минеральных почв в температурном диапазоне от -1 до -30 °С
Аннотация: A single-frequency dielectric model at 1.4 GHz for frozen mineral soils was developed, with the temperature and clay content varying from -1 to -30°C and 9.1 to 41.3%, respectively. The model is based on dielectric measurements of three typical soils (sandy loam, silt loam, and silty clay) collected in the Yamal peninsular. The refractive mixing model was applied to fit the data aggregates consisting of measured complex refractive indexes (CRI) for the three soils as a function of soil moisture at a fixed temperature. As a result, there were derived the parameters of the refractive mixing dielectric model as a function of temperature and texture. These parameters involve the maximum allowed gravimetric fraction of bound water and the CRIs of soil solids, bound soil water, and free soil water components, the latter being represented by capillary ice. The error of the dielectric model was evaluated by correlating the predicted complex relative permittivity (CRP) values of the soil samples with the measured ones. The coefficient of determination, R2, and the root mean square error, RMSE, were estimated to be R2 = 0.994, RMSE = 0.22 and R2 = 0.988, RMSE = 0.07 for the real and imaginary parts of the CRP, respectively. These values are on the order of the dielectric measurement error itself. The proposed dielectric model can be applied in active and passive remote sensing techniques used in the Arctic areas, mainly for the SMOS, SMAP and Aquarius missions.

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Доп.точки доступа:
Mironov, V. L.; Миронов, Валерий Леонидович; Kosolapova, L. G.; Косолапова, Людмила Георгиевна; Lukin, Y. I.; Лукин, Юрий Иванович; Karavaysky, A. Yu.; Каравайский, Андрей Юрьевич; Molostov, I. P.; Молостов, Илья Петрович; Progress in Electromagnetics Research Symposium(37 ; 2016 ; Aug. ; 8-11 ; Shanghai, China)
}
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A dielectric model of thawed and frozen Arctic soils considering frequency, temperature, texture and dry density / V. L. Mironov, A. Yu. Karavayskiy, Yu. I. Lukin, I. P. Molostov // Int. J. Remote Sens. - 2020. - Vol. 41, Is. 10. - P. 3845-3865, DOI 10.1080/01431161.2019.1708506. - Cited References: 39 . - ISSN 0143-1161. - ISSN 1366-5901
Аннотация: A dielectric model was developed for thawed and frozen mineral soils, based on the refractive mixing dielectric formula and the dielectric measurement data for three soils collected in the Arctic tundra of the Yamal Peninsula. The refractive mixing dielectric model was used in conjunction with the Debye multi relaxation equations as a theoretical model to fit the measured complex relative permittivity spectra as a function of soil moisture and temperature. As a result, the dielectric spectroscopic parameters for the various components of water in the soil, such as the low- and high-frequency limits of the complex relative permittivity, the times of the corresponding relaxations, and the specific conductivity, were simultaneously determined for soils with different clay contents for all measured temperatures. As the theoretical temperature dependences of these parameters, the Clausius–Mossotti, Eyring, and linear equations for the conductivity were used. By using approximations of the measured data with these formulas, the parameters of the temperature-dependent model were derived, such as the coefficient of volume expansion, energy and entropy of activation, and coefficient of thermal conductivity. A set of the parameters discussed above in conjunction with the refractive mixing formula is a temperature- and mineralogically dependent multi-relaxation spectroscopic dielectric model, which enables estimation of the permittivity of moist soils as a function of dry soil density, moisture, frequency, temperature, and texture. The statistical error of the proposed dielectric model was estimated in terms of the normalized root-mean-square error (nRMSE), which was equal to 5% and 25% for the dielectric constant and dielectric loss factor, respectively.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russia
Altai State University, Barnaul, Russia

Доп.точки доступа:
Mironov, V. L.; Миронов, Валерий Леонидович; Karavayskiy, A. Yu.; Каравайский, Андрей Юрьевич; Lukin, Y. I.; Лукин, Юрий Иванович; Molostov, I. P.
}
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A high-selectivity wideband bandpass dual-mode microstrip filter / B. A. Belyaev, S. A. Khodenkov, I. V. Govorun, A. M. Serzhantov // Dokl. Phys. - 2022. - Vol. 67, Is. 3. - P. 89-93, DOI 10.1134/S1028335822020021. - Cited References: 12. - This study was carried out within a State Assignment, project no. FEFE-2020-0013, of the Ministry of Science and Higher Education of the Russian Federation . - ISSN 1028-3358. - ISSN 1562-6903
Кл.слова (ненормированные):
microstrip resonator -- bandpass filter -- slope steepness -- frequency response -- dielectric substrate
Аннотация: A half-wave microstrip resonator design with an irregular strip conductor short-circuited to the screen by its ends has been investigated. Based on the resonances of the first two oscillatory modes of this resonator, a miniaturized second-order filter with a fractional bandwidth from 40% to 90% has been implemented, which has a wide high-frequency stopband. A prototype of the designed eight-order filter based on four dual-mode resonators with a passband center frequency of 2 GHz and a fractional bandwidth of 40% has been fabricated on an alumina substrate 45.0 × 10.5 × 1.0 mm3 in size with a permittivity of ε = 9.8. The filter frequency response slopes are extremely steepness due to two attenuation poles located on the left and right sides of the passband. The experimental characteristics of the prototype are in good agreement with the data of the numerical electromagnetic simulation of the 3D model of the filter.

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Публикация на русском языке Широкополосный высокоселективный микрополосковый фильтр на двухмодовых резонаторах [Текст] / Б. А. Беляев, С. А. Ходенков, И. В. Говорун, А. М. Сержантов // Доклады Академии наук. Физика, технические науки. - 2022. - Т. 503 № 1. - С. 57-62

Держатели документа:
Siberian State University of Science and Technology, 660014, Krasnoyarsk, Russia
Siberian Federal University, 660041, Krasnoyarsk, Russia
Kirenskii Institute of Physics, Krasnoyarsk Science Center, Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia

Доп.точки доступа:
Belyaev, B. A.; Khodenkov, S. A.; Govorun, I. V.; Serzhantov, A. M.
}
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A microwave bandpass filter on dielectric layers with metal grids / B. A. Belyaev [et al.] // Tech. Phys. Lett. - 2018. - Vol. 44, Is. 5. - P. 408-411, DOI 10.1134/S1063785018050152. - Cited References: 13. - This study was supported in part by the Ministry of Education and Science of the Russian Federation, project no. 14.575.21.0142 (unique project identifier code RFMEFI57517X0142). . - ISSN 1063-7850. - ISSN 1090-6533

РУБ Physics, Applied

Аннотация: A bandpass filter of new design comprising dielectric layers with surface metal grids is developed and studied. Dielectric layers act as half-wave resonators, while metal grids act as mirrors with preset reflectivity and ensure optimum coupling between adjacent resonators and between the boundary resonators and free space. A test prototype of the third-order filter with a central bandpass frequency of ~12 GHz and relative bandwidth ~17% showed good agreement of theory and experiment. The proposed design can be used in making panels radio-transparent within a preset bandwidth for covering microwave antennas.

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Публикация на русском языке Микроволновый полосно-пропускающий фильтр на диэлектрических слоях с металлическими сетками [Текст] / Б. А. Беляев [и др.] // Письма в Журн. техн. физ. - 2018. - Т. 44 Вып. 10. - С. 3-11

Держатели документа:
Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Fed Res Ctr,Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660074, Russia.
Reshetnev Siberian State Univ Sci & Technol, Krasnoyarsk 660014, Russia.
Radiosvyaz Corp, Krasnoyarsk 660021, Russia.

Доп.точки доступа:
Belyaev, B. A.; Беляев, Борис Афанасьевич; Tyurnev, V. V.; Тюрнев, Владимир Вениаминович; Voloshin, A. S.; Galeev, R. G.; Ministry of Education and Science of the Russian Federation [14.575.21.0142, RFMEFI57517X0142]
}
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A study of the microwave dielectric permittivity of liquid crystals in electric and magnetic fields / B. A. Belyaev [et al.] // Tech. Phys. - 1998. - Vol. 43, Is. 1. - P. 105-109, DOI 10.1134/1.1258946. - Cited References: 8 . - ISSN 1063-7842
Аннотация: A microwave detector based on a self-sustained oscillator circuit is proposed as a means to investigate the real and imaginary components of the dielectric permittivity of liquid crystals in external electric and magnetic fields. Results are given for measurements of a 500 MHz oscillator frequency for two types of nematic crystals, 5CBP and MBBA. Fundamental regularities are identified in the behavior of the microwave dielectric permittivity of samples in electric and magnetic fields. It is shown that the minimum of the high-frequency dielectric loss in liquid crystals correspond to a situation in which the long axes of the molecules are oriented parallel to the direction of the microwave electric field. (C) 1998 American Institute of Physics. [S1063-7842(98)02201-6].

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Публикация на русском языке Исследование СВЧ диэлетрической проницаемости жидких кристалов в электрических и магнитных полях [Текст] / Б. А. Беляев, Н. А. Дрокин, В. Ф. Шабанов, В. Н. Шепов // Журнал технической физики. - 1998. - Т. 68 Вып. 1. - С. 117-122

Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Dept, Krasnoyarsk 660036, Russia
ИФ СО РАН
L. V. Kirenskii Physics Institute, Siberian Department, Russian Academy of Sciences, 660036 Krasnoyarsk, Russian Federation

Доп.точки доступа:
Belyaev, B. A.; Беляев, Борис Афанасьевич; Drokin, N. A.; Дрокин, Николай Александрович; Shabanov, V. F.; Шабанов, Василий Филиппович; Shepov, V. N.; Шепов, Владимир Николаевич
}
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    A temperature-dependent dielectric model for thawed and frozen organic soil at 1.4 GHz / V. L. Mironov [et al.] // IEEE J. Sel. Top. Appl. Earth Observ. Remote Sens. - 2015. - Vol. 8, Is. 9. - P. 4470-4477, DOI 10.1109/JSTARS.2015.2442295. - Cited References:19. - This work was supported in part by a grant from the Russian Science Foundation under Project 14-17-00656 . - ISSN 1939-1404. - ISSN 2151-1535
   Перевод заглавия: Температурно-зависимая диэлектрическая модель талой и мерзлой органической почвы на частоте 1,4 ГГц

РУБ Engineering, Electrical & Electronic + Geography, Physical + Remote
Рубрики:
moisture retrieval algorithm
active layer
validation
Кл.слова (ненормированные):
Dielectric constant -- dielectric losses -- dielectric measurement -- L-band -- modeling -- soil moisture -- soil properties
Аннотация: A single-frequency dielectric model for thawed and frozen Arctic organic-rich (80%-90% organic matter) soil was developed. The model is based on soil dielectric data that were measured over the ranges of volumetric moisture from 0.007 to 0.573 cm3/cm3, dry soil density from 0.564 to 0.666 g/cm3, and temperature from 25°C to -30°C (cooling run), at the frequency of 1.4 GHz. The refractive mixing model was applied to fit the measurements of the soil's complex refractive index (CRI) as a function of soil moisture, with the values of temperature being fixed. Using the results of this fitting, the parameters of the refractive mixing model were derived as a function of temperature. These parameters involve the CRIs of soil solids as well as bound, transient, and free soil water components. The error of the dielectric model was evaluated by correlating the predicted complex relative permittivity (CRP) values of the soil samples with the measured ones. The coefficient of determination (R2) and the root-mean-square error (RMSE) were estimated to be R2 = 0.999, RMSE = 0.27 and R2 = 0.993, RMSE = 0.18 for the real and imaginary parts of the CRP, respectively. These values are in the order of the dielectric measurement error itself. The proposed dielectric model can be applied in active and passive remote-sensing techniques used in the areas with organicrich soil covers, mainly for the SMOS, SMAP, and Aquarius missions.

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Держатели документа:
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia.
Natl Ctr Sci Res, Lab CESBIO UMR, F-31404 Toulouse 9, France.

Доп.точки доступа:
Mironov, V. L.; Миронов, Валерий Леонидович; Kerr, Y. H.; Kosolapova, L. G.; Косолапова, Людмила Георгиевна; Savin, I. V.; Савин, Игорь Викторович; Muzalevskiy, K. V.; Музалевский, Константин Викторович; Russian Science Foundation [14-17-00656]
}
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    Absorption spectra of PrF3 crystal / A. A. Ershov [и др.] // The Second Rus.-China Workshop on Dielectic and Ferroel. Mater. : program. - 2015. - Ст. P6.3. - P. 82
   Перевод заглавия: Спектры поглощения кристалла PrF3

Материалы конференции

Доп.точки доступа:
Ershov, A. A.; Ершов, Александр Андреевич; Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Shestakov, N. P.; Шестаков, Николай Петрович; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Vtyurin, A. N.; Втюрин, Александр Николаевич; Russia-China workshop on dielectric and ferroelectric materials(2 ; 2015 ; sept. ; 11 - 14 ; Voronezh); Российская академия наук; Воронежский государственный технический университет
}
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10.

Accidental bound state in the continuum in a chain of dielectric disks / M. S. Sidorenko, O. N. Sergaeva, Z. F. Sadrieva [et al.] // 2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference : IEEE, 2021. - Conference on Lasers and Electro-Optics Europe / European Quantum Electronics Conference (Jun 21-25, 2021, Electr. Network), DOI 10.1109/CLEO/Europe-EQEC52157.2021.9592618. - Cited References: 2. - The work was supported by RFBR (19-02-00419), the grant of the President of the Russian Federation (MK2224.2020.2) and the Foundation for the Advancement of Theoretical Physics and Mathematics BASIS . - ISBN 978-1-6654-1876-8

РУБ Engineering, Electrical & Electronic + Quantum Science & Technology + Optics + Physics, Applied

Аннотация: Dielectric resonators are open systems whose eigenmodes couple to the radiation continuum resulting in nonzero radiation losses. For a long time, it was believed that only guided modes with frequencies below the light line were decoupled from the radiation continuum [1] . In the early 2000’s, several counterexamples of perfectly localized states – i.e. totally decoupled from the radiation continuum – at frequencies above the light line were proposed in dielectric gratings and photonic crystal waveguides [2] . Such states are known as bound states in the continuum (BIC).

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Держатели документа:
ITMO Univ, Dept Phys & Engn, St Petersburg 197101, Russia.
MIT, Elect Res Lab, 50 Vassar St, Cambridge, MA 02139 USA.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Sidorenko, M. S.; Sergaeva, O. N.; Sadrieva, Z. F.; Roques-Carmes, C.; Muraev, P. S.; Мураев, Павел Сергеевич; Maksimov, D. N.; Максимов, Дмитрий Николаевич; Bogdanov, A. A.; RFBRRussian Foundation for Basic Research (RFBR) [19-02-00419]; Russian FederationRussian Federation [MK2224.2020.2]; Foundation for the Advancement of Theoretical Physics and Mathematics BASIS; Conference on Lasers and Electro-Optics Europe; European Quantum Electronics Conference(2021 ; June)
}
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11.

European Quantum Electronics Conference (2021 ; June ; 21- 25)

Accidental bound state in the continuum in a chain of dielectric disks / M. S. Sidorenko, O. N. Sergaeva, Z. F. Sadrieva [et al.] // Optics InfoBase Conference Papers. - 2021. - 2021 European Quantum Electronics Conference, EQEC 2021 - Part of 2021 Conference on Lasers and Electro-Optics Europe, CLEO 2021 (21 June 2021 through 25 June 2021, Virtual, Online) Conference code: 174130. - Ст. jsi_2_4. - Cited References: 2. - The work was supported by RFBR (19-02-00419), the grant of the President of the Russian Federation (MK-2224.2020.2) and the Foundation for the Advancement of Theoretical Physics and Mathematics BASIS
Аннотация: We experimentally analyze for the first time an off-Gamma BIC in a one-dimensional periodic chain of disks and demonstrate its transformation to a resonant state with the decrease of the chains length.

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Держатели документа:
Department of Physics and Engineering, ITMO University, St. Petersburg, 197101, Russian Federation
Research Laboratory of Electronics, Massachusetts Institute of Technology, 50 Vassar St., Cambridge, MA, United States
Kirensky Institute of Physics, Federal Research Center, KSC, SB, RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Sidorenko, M. S.; Sergaeva, O. N.; Sadrieva, Z. F.; Roques-Carmes, C.; Muraev, P. S.; Мураев, Павел Сергеевич; Maksimov, D. N.; Максимов, Дмитрий Николаевич; Bogdanov, A. A.; European Quantum Electronics Conference(2021 ; June ; 21- 25)
}
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12.

    Aleksandrov, K. S.
    Hierarchies of perovskite-like crystals (Review) / K. S. Aleksandrov, V. V. Beznosikov // Phys. Solid State. - 1997. - Vol. 39, Is. 5. - P. 695-715, DOI 10.1134/1.1130120. - Cited References: 143 . - ISSN 1063-7834
Рубрики:
CU-O SYSTEM
   HIGH-PRESSURE SYNTHESIS
   SUPERCONDUCTING COPPER OXIDES
   STRUCTURAL PHASE-TRANSITIONS
   NEUTRON POWDER DIFFRACTION
   SINGLE-CRYSTAL
   X-RAY
   CUPRATE SUPERCONDUCTORS
   DIELECTRIC-PROPERTIES
   HOMOLOGOUS SERIES
Аннотация: A system of mutual relationships (a hierarchy) is constructed between various perovskite-like crystal structures based on available structural data. All the perovskite-like structures are characterized by a common indicator of their relationship-the presence of layers, stacks, or frameworks made up of BX6 octahedra linked at their vertices (where B is a cation, X is an anion) or fragments of octahedra in the form of BX5 pyramids or BX4 squares in anion-deficient compounds. In layered structures, these stacks are joined to each other by various intermediate blocks. It is well known that one homological series of compounds is constructed by increasing the number of layers in a stack while preserving the same kind of connecting block. Crystals of various series that contain identical stacks (but different blocks of one or two types) can also be related to one another via this feature. The hierarchical system includes compounds with small distortions in their structures for various reasons. (C) 1997 American Institute of Physics.

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Публикация на русском языке Александров, Кирилл Сергеевич. Иерархия перовскитоподобных кристаллов (Обзор) [Текст] / К. С. Александров, Б. В. Безносиков // Физ. тверд. тела. - Санкт-Петербург, 1997. - Т. 39 Вып. 5. - С. 785-808

Доп.точки доступа:
Beznosikov, B. V.; Безносиков, Борис Валерьевич; Александров, Кирилл Сергеевич
}
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13.

Aleksandrov, K. S.
Phase-transitions in CS2CDI4 from measurements of birefringence and dielectric-properties / K. S. Aleksandrov, S. V. Melnikova, I. T. Kokov // Fiz. Tverd. Tela. - 1987. - Vol. 29, Is. 8. - P. 2487-2490. - Cited References: 8 . - ISSN 0367-3294

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Доп.точки доступа:
Melnikova, S. V.; Мельникова, Светлана Владимировна; Kokov, I. T.; Коков, Иван Трофимович; Александров, Кирилл Сергеевич
}
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14.

Aleksandrova, I. P.
Dielectric permittivity behavior at nonequilibrium processes in nh4hseo4 ferroelectrics / I. P. Aleksandrova, I. V. Seryukova, L. I. Zherebtsova // Fiz. Tverd. Tela. - 1985. - Vol. 27, Is. 11. - P. 3438-3441. - Cited References: 5 . - ISSN 0367-3294

РУБ Physics, Condensed Matter

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Доп.точки доступа:
Seryukova, I. V.; Zherebtsova, L. I.; Александрова, Инга Петровна
}
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15.

    All-dielectric photonic crystal microcavity with electrically tunable Q-factor / A. I. Krasnov, P. S. Pankin, D. S. Buzin [et al.] // 9th International School and Conference on Optoelectronics, Photonics, Engineering and Nanostructures : book of abstracts. - Saint-Petersburg, 2022. - Cited References: 3
   Перевод заглавия: Полностью диэлектрический фотоннокристаллический микрорезонатор с электрически управляемой добротностью

Держатели документа:
Kirensky Institute of Physics, Krasnoyarsk 660036, Russia
Siberian Federal University, Krasnoyarsk 660041, Russia
Siberian State University of Science and Technology, Krasnoyarsk 660037, Russia
AO NPP Radiosvyaz, 660021 Krasnoyarsk, Russia

Доп.точки доступа:
Krasnov, A. I.; Pankin, P. S.; Панкин, Павел Сергеевич; Buzin, D. S.; Romanenko, G. A.; Sutormin, V. S.; Сутормин, Виталий Сергеевич; Nabol, S. V.; Zelenov, F. V.; Masyugin, A. N.; Ветров, Степан Яковлевич; Vetrov, S. Ya.; Timofeev, I. V.; Тимофеев, Иван Владимирович; International School and Conference on optoelectronics, photonics, engineering and nanostructures(9 ; 2022 ; 24-27 May ; Saint Petersburg); Высшая школа экономики, НИУ; Санкт-Петербургский национальный исследовательский Академический университет имени Ж.И. Алфёрова Российской академии наук
}
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16.

All-dielectric polarization-preserving anisotropic mirror / N. V. Rudakova [et al.] // OSA Contin. - 2018. - Vol. 1, Is. 2. - P. 682-689, DOI 10.1364/OSAC.1.000682. - Cited References: 39. - Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund (17-42-240464). Ministry of Science and Technology, Taiwan (MOST) (106-2923-M-009-002-MY3). . - ISSN 2578-7519
Рубрики:
Nanophotonics, Metamaterials, and Photonic Crystals
Кл.слова (ненормированные):
Cholesteric liquid crystals -- Circular polarization -- Electric fields -- Optical devices -- Phase plates -- Refractive index
Аннотация: The structure consisting of alternating uniaxial dielectric layers is known to produce reflection of the same polarization as the incident field; e.g., the right-hand elliptically polarized light preserves this right-handedness and ellipticity of polarization at reflection. The parameters permitting the properly-polarized reflectance to exceed 99% in a wide frequency range were considered both analytically and numerically. The mirror with tuned top-layer thickness is shown to have several times less polarization losses than the uniform mirror. The hybrid mirror with metallic bottom layer has a considerably reduced thickness.

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Держатели документа:
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk 660041, Russia
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia
Institute of Imaging and Biomedical Photonics, College of Photonics, National Chiao Tung University, Guiren Dist., Tainan 71150, Taiwan

Доп.точки доступа:
Rudakova, N. V.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Vetrov, S. Ya.; Ветров, Степан Яковлевич; Lee, W.
}
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17.

An ultra-wideband stripline bandpass filter with a noise suppression level of more than 100 dB / B. A. Belyaev, A. M. Serzhantov, A. A. Leksikov [et al.] // Tech. Phys. Lett. - 2020. - Vol. 46, Is. 8. - P. 787-791, DOI 10.1134/S1063785020080179. - Cited References: 9. - This work was financially supported by the Ministry of Science and Higher Education of the Russian Federation in the implementation of the integrated project "Creation of a production of earth stations of advanced satellite communications systems to ensure the coherence of hard, northern and Arctic territory of Russian Federation," implemented with the participation of the Federal Research Center "Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences|" (agreement number 075-11-2019-078 dated 13.12.2019) . - ISSN 1063-7850. - ISSN 1090-6533

РУБ Physics, Applied

Кл.слова (ненормированные):
passband filter -- resonator -- dielectric substrate -- strip conductors
Аннотация: An ultra-wideband bandpass filter formed by cascading of a novel high-pass filter (HPF) and a low-pass filter (LPF) on suspended substrates with a two-sided pattern of strip conductor has been investigated. The high selectivity of the HPF is ensured by the transmission zeros near the passband, the number of which is equal to the filter order. A second-order HPF has been designed on a 0.5-mm-thick substrate with a permittivity of ε = 9.8 using the numerical electrodynamic analysis of a 3D model of the filter. The experimental HPF prototype has a cutoff frequency of fb = 0.25 GHz at a level of –3 dB and a passband that extends to 5 GHz. The ultra-wideband bandpass filter formed by cascading of the LPF and the designed HPF has a fractional bandwidth of Δf/f0 = 150% with a central frequency of f0 = 1 GHz. It has the broad and deep high-frequency stopband, which extends to a frequency of 7.8f0 at a suppression level of –100 dB.

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Публикация на русском языке Полосковый сверхширокополосный полосно-пропускающий фильтр с уровнем подавления помех более 100 dB [Текст] / Б. А. Беляев, А. М. Сержантов, Ан. А. Лексиков [и др.] // Письма в Журн. техн. физ. - 2020. - Т. 46 Вып. 16. - С. 7-11

Держатели документа:
Russian Acad Sci, Kirensky Inst Phys, Krasnoyarsk Sci Ctr, Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Belyaev, B. A.; Беляев, Борис Афанасьевич; Serzhantov, A. M.; Leksikov, An. A.; Лексиков, Андрей Александрович; Bal'va, Y. F.; Бальва, Ярослав Федорович; Grushevskii, E. O.; Грушевский, Евгений Олегович; Ministry of Science and Higher Education of the Russian Federation [075-11-2019-078]
}
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18.

Antiferromagnetic Resonance and Dielectric Properties of Rare-earth Ferroborates in the Submillimeter Frequency Range / A. M. Kuz'menko [et al.] // J. Exp. Theor. Phys. - 2011. - Vol. 113, Is. 1. - P. 113-120, DOI 10.1134/S106377611105013X. - Cited References: 27. - This work was supported by the Russian Foundation for Basic Research, project no. 10-02-00846. . - ISSN 1063-7761

РУБ Physics, Multidisciplinary
Рубрики:
GDFE3(BO3)(4)
SPECTROSCOPY
CRYSTAL
Кл.слова (ненормированные):
Antiferromagnetic resonance -- Basic parameters -- Effective anisotropy constant -- Ferroborates -- Ferroics -- Ferromagnetic orderings -- Frequency ranges -- Magnetic interactions -- Magnetoresonance -- Millimeter frequency range -- Rare earth ions -- Submillimeters -- Antiferromagnetic materials -- Crystallography -- Erbium -- Europium -- Ferromagnetic resonance -- Ion exchange -- Magnetic anisotropy -- Magnetic devices -- Magnetic structure -- Permittivity -- Resonance -- Antiferromagnetism
Аннотация: The magnetoresonance and dielectric properties of a number of crystals of a new family of multiferroics, namely, rare-earth ferroborates RFe(3)(BO(3))(4) (R = Y, Eu, Pr, Tb, Tb(0.25)Er(0.75)), are studied in the submillimeter frequency range (nu = 3-20 cm(-1)). Ferroborates with R = Y, Tb, and Eu exhibit permittivity jumps at temperatures of 375, 198, and 58 K, respectively, which are caused by the R32 -> P3(1)2(1) phase transition. Antiferromagnetic resonance (AFMR) modes in the subsystem of Fe(3+) ions are detected in the range of antiferromagnetic ordering (T < T(N) = 30-40 K) in all ferroborates that have either an easy-plane (Y, Eu) or easy-axis (Pr, Tb, Tb(0.25)Er(0.75)) magnetic structure. The AFMR frequencies are found to depend strongly on the magnetic anisotropy of a rare-earth ion and its exchange interaction with the Fe subsystem, which determine the type of magnetic structure and the sign and magnitude of an effective anisotropy constant. The basic parameters of the magnetic interactions in these ferroborates are found, and the magnetoelectric contribution to AFMR is analyzed.

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Держатели документа:
[Kuz'menko, A. M.
Mukhin, A. A.
Ivanov, V. Yu.
Lebedev, S. P.] Russian Acad Sci, Inst Gen Phys, Moscow 119991, Russia
[Kadomtseva, A. M.] Moscow MV Lomonosov State Univ, Moscow 119991, Russia
[Bezmaternykh, L. N.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
ИФ СО РАН
Institute of General Physics, Russian Academy of Sciences, ul. Vavilova 38, Moscow, 119991, Russian Federation
Moscow State University, Moscow, 119991, Russian Federation
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Kuz'menko, A. M.; Mukhin, A. A.; Ivanov, V. Y.; Kadomtseva, A. M.; Lebedev, S. P.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич
}
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19.

Antiferromagnetic Resonance and Dielectric Properties of Rare-earth Ferroborates in the Submillimeter Frequency Range / A. M. Kuz'menko, A. A. Mukhin, V. Yu. Ivanov [et al.] // J. Exp. Theor. Phys. - 2011. - Vol. 113, Is. 1. - P113-120, DOI 10.1134/S106377611105013X. - Cited Reference Count: 27. - Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [10-02-00846], This work was supported by the Russian Foundation for Basic Research, project no. 10-02-00846. . - JUL. - ISSN 1063-7761. - ISSN 1090-6509
Рубрики:
Physics, Multidisciplinary
Аннотация: The magnetoresonance and dielectric properties of a number of crystals of a new family of multiferroics, namely, rare-earth ferroborates RFe3(BO3)(4) (R = Y, Eu, Pr, Tb, Tb0.25Er0.75), are studied in the submillimeter frequency range (nu = 3-20 cm(-1)). Ferroborates with R = Y, Tb, and Eu exhibit permittivity jumps at temperatures of 375, 198, and 58 K, respectively, which are caused by the R32 - P3(1)2(1) phase transition. Antiferromagnetic resonance (AFMR) modes in the subsystem of Fe3+ ions are detected in the range of antiferromagnetic ordering (T≺T-N=30-40K) in all ferroborates that have either an easy-plane (Y, Eu) or easy-axis (Pr, Tb, Tb0.25Er0.75) magnetic structure. The AFMR frequencies are found to depend strongly on the magnetic anisotropy of a rare-earth ion and its exchange interaction with the Fe subsystem, which determine the type of magnetic structure and the sign and magnitude of an effective anisotropy constant. The basic parameters of the magnetic interactions in these ferroborates are found, and the magnetoelectric contribution to AFMR is analyzed.

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Держатели документа:
Russian Acad Sci, Inst Gen Phys, Moscow 119991, Russia;
Moscow MV Lomonosov State Univ, Moscow 119991, Russia;
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Kuz'menko, A. M.; Mukhin, A. A.; Ivanov, V. Yu.; Kadomtseva, A. M.; Lebedev, S. P.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич
}
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20.

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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