Zobrazeno 1 - 10
of 12
pro vyhledávání: '"I O Dorofeev"'
Publikováno v:
Russian Physics Journal. 63:196-203
Numerical modeling is used to study the distribution of the electric field excited by microwave radiation in a rectangular chamber in which a two-layer dielectric cylindrical phantom is placed whose electrophysical parameters correspond to muscle and
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 2021. Vol. 1198. P. 012003 (1-6)
The creation of new composite materials with specified radio-frequency properties is often carried out using small-sized inclusions, while the polarizability parameters of these small bodies in electric and magnetic fields play a significant role. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b92cee4f3ce87ad445f5640c599d0bed
https://vital.lib.tsu.ru/vital/access/manager/Repository/koha:000902844
https://vital.lib.tsu.ru/vital/access/manager/Repository/koha:000902844
Publikováno v:
Journal of Physics: Conference Series. 2140:012011
This article describes the performance of a backward wave oscillator, stabilized with phase locked loop. The backward wave oscillator is locked to the frequency of a direct digital synthesizer using an automatic phase locked loop. The direct digital
Autor:
G. E. Dunaevskii, I. O. Dorofeev
Publikováno v:
Russian physics journal. 2017. Vol. 59, № 12. P. 2080-2086
The half-wave resonance of ultra-thin conductors produced by different technologies is investigated within 8.2–15.5 GHz frequency range using an open quasi-optical resonator. A comparison of the theoretical and experimental results show that for gl
Publikováno v:
Russian Physics Journal. 58:1167-1171
The effect of inhomogeneities of the glass-coated cast microwires on the spectral characteristics of the fundamental modes of an open-cavity microwave resonator in the frequency range from 8.2 to 15.5 GHz is experimentally determined. It is shown tha
Autor:
I. O. Dorofeev, G. E. Dunaevskii
Publikováno v:
Russian Journal of Nondestructive Testing. 50:741-747
A transducer of ultra-thin conductor parameters on the basis of a superhigh-frequency open-loop resonator is considered. The conditions for attaining the maximum sensitivity of such a transducer were found by analyzing the spectral characteristics of
Autor:
G. E. Dunaevskii, I. O. Dorofeev
Publikováno v:
Russian Physics Journal. 56:49-54
Incorporation of a thin two-layered extended cylinder in an open quasi-optical microwave resonator is considered. Changes in the resonant frequency and bandwidth of the odd fundamental resonator modes are found. Results of calculations of the charact
Autor:
G. E. Dunaevskii, I. O. Dorofeev
Publikováno v:
Russian Physics Journal. 54:1112-1120
Two methods are used to calculate the losses introduced in an open resonator by an ultrathin cylindrical sample placed in the antinode of the electric field of the main oscillation mode. It is demonstrated that the dependence of the losses on the cyl
Autor:
G. E. Dunaevskii, I. O. Dorofeev
Publikováno v:
Russian physics journal. 2015. Vol. 57, № 10. P. 1388-1391
Sensitivities of waveguide and resonator techniques of fixing small changes in the modulus of the reflection or transmission coefficient of the examined material are compared. Conditions are determined under which the resonator technique has essentia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9ae6c20bccdb07f1b083a0de83212a1
https://openrepository.ru/article?id=791722
https://openrepository.ru/article?id=791722
Publikováno v:
Russian Physics Journal. 49:276-284
Results of calculations of polarizability of a metal rod by various approximation methods, numerical solution of an integral equation, and polarizability measurement by the resonator method are presented. Methods of calculations of the wave resistanc