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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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Fomin, S. V.
A dielectric model for frozen mineral soils at a frequency of 435 MHz / S. Fomin, K. Muzalevskiy // Remote Sens. Lett. - 2021. - Vol. 12, Is. 9. - P. 944-950, DOI 10.1080/2150704X.2021.1947537. - Cited References: 16. - This work was supported by the state assignment of the Ministry of Science and Higher Education of the Russian Federation [project No. 0287-2021-0034] . - ISSN 2150-704X
Кл.слова (ненормированные):
Mean square error -- Mixer circuits -- Permittivity -- Remote sensing -- Soil moisture -- Soil surveys -- Coefficient of determination -- Complex relative permittivity -- Dielectric measurements -- Practical engineering -- Retrieval algorithms -- Root mean square errors -- Spectroscopic models -- Volumetric soil moistures -- Frozen soils
Аннотация: A single frequency refractive mixing dielectric model at 435 MHz for frozen mineral soils is proposed. The model was created based on the laboratory dielectric measurements of three soil samples in the ranges of soil moisture from 0.01cm3 cm−3 to 0.42cm3 cm−3, temperature from– 30°C to– 1°C, clay content (by weight) from 9.1% to 41.3%. Coefficient of determination R2 and root mean square error (RMSE) predicted by the model and measured values for real () and imaginary () part of the complex relative permittivity (CRP) are = 0.988 (= 0.323) and = 0.987 (= 0.100). Compared to well-known spectroscopic models, this model is simpler in practical engineering use. The input parameters of the model are the volumetric soil moisture, temperature and the content of the clay fraction. The output parameters are the real and imaginary parts of the CRP. The created model may be used to develop new remote sensing retrieval algorithms of temperature, the content of unfrozen water and ice in the root zone of frozen soils for northern regions.ε 'ε ''R2ε 'RMSEε 'R2ε ''RMSEε ''

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Держатели документа:
Laboratory of Radiophysics of the Earth Remote Sensing, Kirensky Institute of Physics Federal Research Center KSC Siberian Branch Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Muzalevskiy, K. V.; Музалевский, Константин Викторович; Фомин, Сергей Викторович
}
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Savin, I. V.
A dielectric model of thawed and frozen Arctic organic soils at 435 MHz / I. V. Savin, K. V. Muzalevskiy, V. L. Mironov // Remote Sens. Lett. - 2022. - Vol. 13, Is. 5. - P. 452-459, DOI 10.1080/2150704X.2022.2041761. - Cited References: 15. - This work was supported by the SB RAS project No. 0287-2021-0034 . - ISSN 2150-704X. - ISSN 2150-7058

РУБ Remote Sensing + Imaging Science & Photographic Technology
Рубрики:
P-BAND RADAR
Аннотация: A refractive-mixing dielectric model for frozen and thawed organic-rich soils at a frequency of 435 MHz was developed in this letter. The model was developed based on the dielectric measurements of five soil samples in which organic matter content was variated from 35% to 80% (by weight). Dielectric measurements were conducted in the range of volumetric soil moisture from ~2% to 60%, and the range of temperature from −30°C to 25°C. Coefficient of determination (R2) and root mean square error (RMSE) between predicted by the model and measured values for real (ε ') and imaginary (ε '') part of complex relative permittivity are R2ε '= 0.989 (RMSEε '=0.602) and R2ε ''= 0.906 (RMSEε ''=0.404), respectively. The developed dielectric model can be used for creating remote sensing algorithms (soil moisture retrieval in the root zone, active layer thickness and ice content measuring in permafrost area, etc.) in P-band.

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Держатели документа:
Russian Acad Sci Ip Sb Ras, Lab Radiophys Earth Remote Sensing, Kirensky Inst,Phys Fed Res Ctr, Ksc Siberian Branch, Krasnoyarsk, Russia.
Siberian Fed Univ, Sch Engn Phys & Radio Elect, Krasnoyarsk, Russia.

Доп.точки доступа:
Muzalevskiy, K. V.; Музалевский, Константин Викторович; Mironov, V. L.; Миронов, Валерий Леонидович; Савин, Игорь Викторович; SB RAS project [0287-2021-0034]
}
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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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Mironov, V. L.
A PHYSICAL MODEL OF DIELECTRIC SPECTRA OF THAWED AND FROZEN BENTONITIC CLAY WITHIN THE FREQUENCY RANGE FROM 1 TO 15 GHZ / V. L. Mironov, Y. I. Lukin // Russ. Phys. J. - 2011. - Vol. 53, Is. 9. - P. 956-963, DOI 10.1007/s11182-011-9516-4. - Cited References: 7. - This study has been supported by the Complex integration project of the SB RAS Presidium, Grant No. 6 and a joint RFBR - France grant No. 09-05-91061-NTSNI. . - ISSN 1064-8887

РУБ Physics, Multidisciplinary
Рубрики:
SOIL
Кл.слова (ненормированные):
dielectric spectra -- moist specimens -- bentonitic clay -- microwaves -- phase transitions -- bentonitic clay -- dielectric spectra -- microwaves -- moist specimens -- phase transitions
Аннотация: The dielectric spectra of moist specimens of bentonitic clay are measured within the frequency range from 1 to 15 GHz at positive and negative temperatures. The phase transitions in different types of water present in the clay specimen are investigated in the process of its freezing. The parameters of dielectric relaxation and conductivity of different water types in the specimen are determined. A thermal dielectric model for thawed and frozen bentonitic clay is developed.

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Держатели документа:
[Mironov, V. L.] Russian Acad Sci, LV Kirenskii Inst Phys, Siberian Branch, Krasnoyarsk, Russia
[Lukin, Yu. I.] MF Reshetnev Siberian State Aerosp Univ, Krasnoyarsk, Russia
ИФ СО РАН
L. V. Kirenskii Institute of Physics of the Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russian Federation
M. F. Reshetnev Siberian State Aerospace University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Lukin, Y. I.; Лукин, Юрий Иванович; Миронов, Валерий Леонидович
}
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10.

Pichugin, K. N.
A series of avoided crossings of resonances in the system of several different dielectric resonators results in giant Q-factors / K. Pichugin, A. Sadreev, E. Bulgakov // Photonics. - 2023. - Vol. 10, Is. 9. - Ст. 973, DOI 10.3390/photonics10090973. - Cited References: 64. - This work is supported by the Russian Science Foundation under grant 22-12-00070 . - ISSN 2304-6732
Кл.слова (ненормированные):
resonant modes -- avoided crossing -- high Q-factor
Аннотация: On an example of a system of three/four/five/six different coupled coaxial silicon disks, we realize a series of avoided crossings of resonances (ACRs) with respect to the different morphologies for the different scales of each disk. Each next step of ACR accompanied by the optimization processes of all previous ACRs contributes almost one order of magnitude to the Q-factor. As a result, we achieve unprecedented values for the Q-factors: 6.6·104 for three, 4.8·106 for four, 8.5·107 for five and several billions for six free standing silicon disks. Comparisons to such prominent methods as whispering gallery modes or quasi bound states in the continuum to boost the Q-factor demonstrate the tremendous advantage of the present approach not only in terms of Q-factor values but also in terms of mode volumes. Multipole analysis of the final hybridized resonant mode explains such extremely large Q-factor values. The analysis shows a strong redistribution of radiation owing to the almost-exact destructive interference of the dominating complex multipole radiation amplitudes.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia

Доп.точки доступа:
Sadreev, A. F.; Садреев, Алмаз Фаттахович; Bulgakov, E. N.; Булгаков, Евгений Николаевич; Пичугин, Константин Николаевич
}
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11.

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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12.

    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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13.

Epov, M. I.
A temperature-dependent dielectric model for water- and oil-containing rocks in the frequency range from 0.5 to 15 GHz / M. I. Epov, I. V. Savin, V. L. Mironov // Russ. Geol. Geophys. - 2012. - Vol. 53, Is. 7. - P. 698-703, DOI 10.1016/j.rgg.2012.05.008. - Cited References: 17 . - ISSN 1068-7971

РУБ Geosciences, Multidisciplinary
Рубрики:
MOIST SOILS
POLARIZATION PROCESSES
PERMITTIVITY METHOD
Кл.слова (ненормированные):
dielectric permittivity -- effective conductivity -- water-containing rocks -- temperature-dependent dielectric model
Аннотация: Dielectric spectra of water-containing rocks forming a mineral framework of the oil-saturated bed (clay minerals amount to˂16%) were measured in the frequency range from 500 MHz to 15 GHz and in the temperature range from 20 to 80 °C. A physical model for computing spectra of the dielectric permittivity and effective conductivity of the studied rocks has been elaborated. Its input parameters are water (salt solution) content and temperature. The errors of the computed spectra relative to the measured ones are estimated.

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Публикация на русском языке Эпов, Михаил Иванович. Диэлектрическая температурная модель влажных нефтесодержащих пород в диапазоне частот от 0.5 до 15 ГГц [Текст] / М. И. Эпов, И. В. Савин, В. Л. Миронов // Геол. и геофиз. - 2012. - Т. 53 № 7. - С. 912-919

Держатели документа:
[Epov, M. I.] Russian Acad Sci, Siberian Branch, AA Trofimuk Inst Petr Geol & Geophys, Novosibirsk 630090, Russia
[Savin, I. V.
Mironov, V. L.] Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
[Mironov, V. L.] Reshetnev Siberian State Aerosp Univ, Krasnoyarsk 66014, Russia

Доп.точки доступа:
Savin, I. V.; Савин, Игорь Викторович; Mironov, V. L.; Миронов, Валерий Леонидович
}
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14.

    Mironov, V. L.
    A temperature-dependent multi-relaxation spectroscopic dielectric model for thawed and frozen organic soil at 0.05-15 Ghz / V. L. Mironov [et al.] // Geoscience and Remote Sensing Symposium (IGARSS), 2015 IEEE International. - 2015. - P. 2031-2034DOI 10.1109/IGARSS.2015.7326198
   Перевод заглавия: Температурно-зависимая много-релаксационная спектроскопическая диэлектрическая модель для талой и мерзлой органической почвы в диапазоне частот 0,05-15 ГГц.
Аннотация: The dielectric model for an arctic organic-rich soil collected on the Yamal peninsula (50% of organic matter) both thawed and frozen has been developed. The model is based on the soil dielectric measurements carried out in the ranges of gravimetric moisture 0.03 to 0.55 g/g, dry soil density 0.72 to 0.87 g/cm3, and temperature 25 to −30°C (cooling run), in the frequency range 0.05–15 GHz. To fit the results of measurements of the soil complex dielectric constant as a function of soil moisture and wave frequency, the refractive mixing dielectric model in conjunction with the Debye multi-relaxation equations were applied. As a result, the spectroscopic parameters of dielectric relaxations and electrical specific conductivities for the bound, transient bound, and unbound soil water components were derived, being further complimented with the thermodynamics parameters. Having these parameters, the complex dielectric constant of soil can be predicted as a function of 1) density of dry soil, 2) gravimetric moisture, 3) wave frequency, and 4) temperature1.

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Доп.точки доступа:
Savin, I. V.; Савин, Игорь Викторович; Muzalevskiy, K. V.; Музалевский, Константин Викторович; Миронов, Валерий Леонидович; Geoscience and Remote Sensing Symposium(2015 ; jul ; 26-31 ; Milan, Italy)
}
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15.

    Mironov, V. L.
    A temperature-dependent multi-relaxation spectroscopic dielectric model for thawed and frozen organic soil at 0.05–15 GHz / V. L. Mironov, I. V. Savin // Phys. Chem. Earth. - 2015. - Vol. 83–84: Emerging science and applications with microwave remote sensing data. - P. 57-64, DOI 10.1016/j.pce.2015.02.011. - Cited References: 14. - The study was supported by the Russian Science Foundation (project 14-17-00656). . - ISSN 1474-7065
   Перевод заглавия: Температурно зависимая многорелаксационная спектроскопическая диэлектрическая модель талой и мерзлой органической почвы в диапазоне частот 0.05 – 15 ГГц

РУБ Geosciences, Multidisciplinary + Meteorology & Atmospheric Sciences + Water Resources
Рубрики:
ARCTIC SOIL
BOREAL
Кл.слова (ненормированные):
Organic soil -- Moisture -- Temperature -- Dielectric model -- Thawed and frozen soil -- SMOS
Аннотация: A dielectric model for thawed and frozen Arctic organic-rich soil (50% organic matter) has been developed. The model is based on soil dielectric measurements that were collected over ranges of gravimetric moisture from 0.03 to 0.55 g/g, dry soil density from 0.72 to 0.87 g/cm3, and temperature from 25 to −30 °C (cooling run) in the frequency range of 0.05–15 GHz. The refractive mixing dielectric model was applied with the Debye multi-relaxation equations to fit the measurements of the soil’s complex dielectric constant as a function of soil moisture and wave frequency. The spectroscopic parameters of the dielectric relaxations for the bound, transient bound, and unbound soil water components were derived and were complimented by the thermodynamic parameters to obtain a complete set of parameters for the proposed temperature-dependent multi-relaxation spectroscopic dielectric model for moist soils. To calculate the complex dielectric constant of the soil, the following input variables must be assigned: (1) density of dry soil, (2) gravimetric moisture, (3) wave frequency, and (4) temperature. The error of the dielectric model was evaluated and yielded RMSEε′ values of 0.348 and 0.188 for the soil dielectric constant and the loss factor, respectively. These values are on the order of the dielectric measurement error itself. The proposed dielectric model can be applied in active and passive microwave remote sensing techniques to develop algorithms for retrieving the soil moisture and the freeze/thaw state of organic-rich topsoil in the Arctic regions.

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Доп.точки доступа:
Savin, I. V.; Савин, Игорь Викторович; Миронов, Валерий Леонидович
}
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16.

ZEIN, N. E.
ABINITIO CALCULATIONS OF PHONON FREQUENCIES AND DIELECTRIC-CONSTANTS IN A(4)B(6) COMPOUNDS / N. E. ZEIN, V. I. ZINENKO, A. S. FEDOROV // Phys. Lett. A. - 1992. - Vol. 164, Is. 1. - P. 115-119, DOI 10.1016/0375-9601(92)90916-A. - Cited References: 20 . - ISSN 0375-9601

РУБ Physics, Multidisciplinary
Рубрики:
IV-VI COMPOUNDS
CRYSTAL-STRUCTURE
Аннотация: The transverse and longitudinal optical frequencies at q = 0, the dielectric constant and the effective charges are calculated for the A4B6 type family of the semiconducting compounds GeTe, SnTe and PdTe. The calculations are performed in the framework of the density functional method with the use of the norm-conserving "first-principles" pseudopotentials. The estimated ferroelectric phase transition temperatures and a number of other calculated quantities turned out to be in good agreement with the experimental data. The variations of the electronic structure in the row PbTe-GeTe, which promote the ferroelectric phase transition for GeTe, are discussed.

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Держатели документа:
LV KIRENSKY PHYS INST,KRASNOYARSK 660036,USSR
ИФ СО РАН

Доп.точки доступа:
ZINENKO, V. I.; Зиненко, Виктор Иванович; FEDOROV, A. S.; Федоров, Александр Семенович
}
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17.

    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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18.

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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19.

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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20.

    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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