Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Nikolay S. Knyazev"'
Autor:
Zoya A. Mikhaylovskaya, Elena S. Buyanova, Sofia A. Petrova, Elizaveta A. Pankrushina, Alexander I. Malkin, Alexey N. Korotkov, Nikolay S. Knyazev
Publikováno v:
Chimica Techno Acta, Vol 9, Iss 4 (2022)
The powders of Ca1–2xBi2xMo1–xGexO4 solid solutions weresynthesized by the conventional solid state method and investigated by X–ray powder diffraction and Raman spectroscopy. The Ca1–2xBi2xMo1–xGexO4 compositions crystallize in scheelite s
Externí odkaz:
https://doaj.org/article/d69cbb8892064ca597e5f8298c2351c0
Autor:
Zoya A. Mikhaylovskaya, Elena S. Buyanova, Alexander I. Malkin, Alexey N. Korotkov, Nikolay S. Knyazev, Sofia A. Petrova
Publikováno v:
SSRN Electronic Journal.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::588b658bd19c667c15d4d8f13ae7c042
https://doi.org/10.2139/ssrn.4120241
https://doi.org/10.2139/ssrn.4120241
Autor:
A. V. Pavlov, A. A. Lepeshev, Nikolay S. Knyazev, N. A. Drokin, V. S. Kiiko, Alexander I. Malkin
Publikováno v:
Refractories and Industrial Ceramics. 60:309-317
An electrically conducting two-component BeO-ceramic with the addition of micro- and nano-crystalline TiO2 powder is prepared that can be used as a material for scattered microwave radiation absorption in high-power electronic devices. The nature of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d63b07b00b42d31f302cc87cc9937cf7
https://doi.org/10.1007/s11148-019-00359-1
https://doi.org/10.1007/s11148-019-00359-1
Publikováno v:
2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science.
This paper presents compact designs of microwave devices on a flexible substrate. Flexible substrates allow you to design conformal devices and reduce the dimensions of common printed designs. We show the layouts of a compact bandpass filter and a di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a54bc7073ad951de8ef4e05c00081dcb
https://doi.org/10.23919/ursigass49373.2020.9232448
https://doi.org/10.23919/ursigass49373.2020.9232448
Autor:
Nikolay S. Knyazev, Denis A. Letavin
Publikováno v:
2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science.
Due to the fact that microwave devices at low frequencies are cumbersome, their designs undergo a miniaturization procedure. This work is aimed at exploring the possibilities of miniaturization of a passive broadband power divider. Through the use of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d67950c3f2030634aba8f81ff71b0582
https://doi.org/10.23919/ursigass49373.2020.9232403
https://doi.org/10.23919/ursigass49373.2020.9232403
Publikováno v:
2019 27th Telecommunications Forum (TELFOR).
In this paper the compact directional couplers for centimeter and millimeter frequency bands are investigated. Using the NI-AWR Design Environment software, four layouts of miniaturized couplers were synthesized at the central frequencies of 1, 10, 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a6332632b6f1c03b5206f87da8971765
https://doi.org/10.1109/telfor48224.2019.8971131
https://doi.org/10.1109/telfor48224.2019.8971131
Publikováno v:
2019 International Multi-Conference on Engineering, Computer and Information Sciences (SIBIRCON).
In work were measured electrodynamic properties of the titanium dioxide nano-powders using the transmission line technique and the Nicholson-Ross-Weir mathematical model for calculation permittivity and permeability values. Were studied the influence
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::670190621340baf8f9a5ef297dcdd587
https://doi.org/10.1109/sibircon48586.2019.8958025
https://doi.org/10.1109/sibircon48586.2019.8958025
Publikováno v:
2019 Russian Open Conference on Radio Wave Propagation (RWP).
This paper presents the design of a miniature planar directional coupler with three plugs connected. This coupler operates at 2 GHz center frequency and is implemented on FR4 material. Reducing the dimensions of the coupler by 70% was obtained throug
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9408b15e2b9b0a33978591a4148d6965
https://doi.org/10.1109/rwp.2019.8810164
https://doi.org/10.1109/rwp.2019.8810164
Publikováno v:
2019 Ural Symposium on Biomedical Engineering, Radioelectronics and Information Technology (USBEREIT).
This paper describes a variant of measuring the properties of fabric materials for designing antennas on them. To measure the dielectric constant of cotton with a thickness of 1 mm using waveguides. Antenna design was carried out using Ansys HFSS. Sy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7fcf85ffdf20b690456d9b75a6a540ef
https://doi.org/10.1109/usbereit.2019.8736576
https://doi.org/10.1109/usbereit.2019.8736576
Publikováno v:
IOP Conference Series: Materials Science and Engineering
A study to determine how the operating frequency of the device during miniaturization depends on its efficiency and the safety of the original characteristics. It was found that the miniaturization efficiency decreases with increasing frequency. Thus
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0fc4d08a3c53fb84fc7fcf5814d5b55e
http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85074800716
http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85074800716
