Zobrazeno 1 - 10
of 260
pro vyhledávání: '"microwave electronics"'
Publikováno v:
St. Petersburg Polytechnical University Journal: Physics and Mathematics, Vol 16, Iss 4 (2023)
This study presents the results of a complex physical modeling of a moderate power gyrotron operating at the 4-mm wavelength range. The characteristics of electrodes and magnetic coils in a four-stage recovery collector were optimized taking into acc
Externí odkaz:
https://doaj.org/article/03984e2cc7f748949050cabf75e44bdc
Autor:
Guria, Georgy Teodorovich, Malinetskii , Georgij Gennadevich, Sominski, G. G., Poizner, Boris Nikolaevich
Publikováno v:
Известия высших учебных заведений: Прикладная нелинейная динамика, Vol 31, Iss 3, Pp 377-400 (2023)
On June 14, 2023, could be celebrated the 85-th anniversary of the founder of the journal “Applied Nonlinear Dynamics”, the Corresponding Member of the Russian Academy of Sciences, the Honored Scientist of the Russian Federation, the laureate of
Externí odkaz:
https://doaj.org/article/628cb57d970849c286c14193a280ccd8
Publikováno v:
Journal of Electromagnetic Engineering and Science, Vol 22, Iss 3, Pp 265-271 (2022)
A cathode with an open-ended coaxial structure is experimentally investigated using an axial virtual cathode oscillator (vircator). To enhance the microwave power output, an open-ended coaxial cathode is installed in the axial vircator. The proposed
Externí odkaz:
https://doaj.org/article/d2a3316cb0b24a67bf6f91a3c825565e
Publikováno v:
St. Petersburg Polytechnical University Journal: Physics and Mathematics, Vol 15, Iss 3 (2022)
In the paper, a 3D trajectory analysis taking into account the surface roughness of the thermionic cathode and thermal effects caused by its heating has been performed in the electron-optical system of a gyrotron with a frequency of 74,2 GHz and an o
Externí odkaz:
https://doaj.org/article/3e86e3d7da3d41b48e61e3ddae4ef7db
Publikováno v:
Sensors, Vol 23, Iss 7, p 3750 (2023)
In this contribution, a 25 GHz planar antenna, designed and realized in microstrip technology, is exploited as a lightweight and compact liquid sensor. The high working frequency allows minimization of the sensor dimension. Moreover, particular atten
Externí odkaz:
https://doaj.org/article/8d060529f20d45979145cae94953bdcf
Publikováno v:
IEEE Journal of Microwaves, Vol 1, Iss 3, Pp 821-826 (2021)
Graphene has unique electrical and mechanical properties which can pave the way for new types of devices for microwave applications. However, emerging technologies often have problems with yield and still considerable variation in device parameters c
Externí odkaz:
https://doaj.org/article/e77932c00e5e4a2f817665bc220f6a58
Autor:
Muhammad Asad, Marlene Bonmann, Xinxin Yang, Andrei Vorobiev, Kjell Jeppson, Luca Banszerus, Martin Otto, Christoph Stampfer, Daniel Neumaier, Jan Stake
Publikováno v:
IEEE Journal of the Electron Devices Society, Vol 8, Pp 457-464 (2020)
This paper addresses the high-frequency performance limitations of graphene field-effect transistors (GFETs) caused by material imperfections. To understand these limitations, we performed a comprehensive study of the relationship between the quality
Externí odkaz:
https://doaj.org/article/356d226b5d3d4e8687e7e28e2f3bd0e5
Akademický článek
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Publikováno v:
IEEE Journal of Microwaves, Vol 1, Iss 4, Pp 908-929 (2021)
As the rapid development of integrated magnetic and magnetoelectric, numerous novel devices including high performance on-chip transformers, inductors, filters, antennas, and sensors with unique advantages in power efficiency, size and tunability, et
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ec05363bfcd710c21e88f23ea1a1ec3
https://doi.org/10.1109/jmw.2021.3109277
https://doi.org/10.1109/jmw.2021.3109277
Publikováno v:
Pribory i Metody Izmerenij, Vol 0, Iss 1, Pp 64-71 (2015)
The setup with a reflective microwave H101 resonator for the non-contact measurements of the electrical parameters of compact samples (the diameter less than 5 mm) is constructed. An analytical expression for calculation of the microwave power reflec
Externí odkaz:
https://doaj.org/article/714bf95e7b9e4e0090a2c36080940942