Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Peter L. Tokarsky"'
Publikováno v:
IEEE Access, Vol 11, Pp 75225-75235 (2023)
This work is concerned with a detailed study of an active antenna, which can serve as a prototype of a phased array antenna element for a future lunar very-low-frequency (VLF) radio telescope operating in the frequency range of 1–30 MHz. The antenn
Externí odkaz:
https://doaj.org/article/3b0d2032d1bc419bb08a4a62463817bd
Autor:
Peter L. Tokarsky
Publikováno v:
International Journal of Antennas and Propagation, Vol 2020 (2020)
System analysis is a powerful tool for researching modern wireless systems. This includes breaking such systems into parts that make them up and studying how these parts work together. All these parts can be represented as “black boxes” in the fo
Externí odkaz:
https://doaj.org/article/3a919c0d5c13454991ecfb6f81957bf3
Autor:
Peter L. Tokarsky
Publikováno v:
International Journal of Antennas and Propagation, Vol 2019 (2019)
The impedance matrix of an arbitrary multiport array antenna with Ohmic losses was studied. It was assumed that the partial current distributions in the array, corresponding to the alternate exciting one of its terminals while the other ones are open
Externí odkaz:
https://doaj.org/article/e89a36a9e7284da0b7a3e1c803d780ac
Autor:
Peter L. Tokarsky, L. O. Stanislavsky, S. M. Yerin, I. N. Bubnov, O. M. Korolev, O. O. Konovalenko
Publikováno v:
Radio Physics and Radio Astronomy, Vol 26, Iss 3, Pp 197-210 (2021)
Purpose: Theoretical and experimental studies of the active antenna – an element of the low-frequency radio telescope antenna array for the future observatory on the farside of the Moon. Design/methodology/approach: To study the active antenna, con
Autor:
I. Y. Vasylieva, Upd, Y. V. Vasylkivsky, I. B. Vavilova, G. V. Litvinenko, Lesia, Observatoire de Paris, Cnrs, Psl, B. S. Kharchenko, V. A. Shevchenko, O. M. Reznichenko, Mykhaylo Panchenko, M. M. Kalinichenko, А. B. Lozinsky, O. M. Ulyanov, G. V. Kvasov, A. O. Gridin, L. M. Ostapchenko, V. V. Zakharenko, V. A. Shepelev, V. L. Коliadin, Leonid M. Lytvynenko, I. M. Bubnov, Y. G. Shkuratov, S. M. Yerin, Alain Lecacheux, О. L. Ivantyshyn, V. V. Shevchenko, І. P. Kravtsov, N. V. Vasylenko, Peter L. Tokarsky, V. P. Bovkun, O. S. Belov, A. I. Brazhenko, O. O. Lytvynenko, Ya. M. Sobolev, O. O. Konovalenko, A. V. Frantsuzenko, O. V. Antonov, V. V. Dorovskyy, Philippe Zarka, Vladimir B. Ryabov, O. O. Stanislavsky, O. D. Khristenko, N. V. Кuhai, S. V. Stepkin, R. V. Vashchishin, Upmc, N. О. Tsvyk, H. O. Rucker, Ya. S. Yatskiv, M. I. Ryabov, V. M. Melnik, V. M. Bortsov, G. I. Pidgorny, А. P. Miroshnichenko, V. V. Galanin, M. V. Shevchuk, V. V. Koshovyy, Yu. M. Bruck, A. G. Tymoshevsky, M. A. Sidorchuk, D. V. Mukha, А. І. Shevtsova, I. S. Braude
Publikováno v:
Radio Physics and Radio Astronomy, Vol 26, Iss 1, Pp 5-73 (2021)
Radio physics and radio astronomy
Radio physics and radio astronomy, National Academy of Sciences of Ukraine, Institute of Radio Astronomy, Ukrainian Committee URSI/Begell, 2021, 26 (1), pp.5-73. ⟨10.15407/rpra26.01.005⟩
Radio physics and radio astronomy
Radio physics and radio astronomy, National Academy of Sciences of Ukraine, Institute of Radio Astronomy, Ukrainian Committee URSI/Begell, 2021, 26 (1), pp.5-73. ⟨10.15407/rpra26.01.005⟩
International audience; Purpose: A historical review of the experimental baselopment of low-frequency radio astronomy in Ukraine, its foundation half a century ago by an outstanding scientist S.Ya. Braude to the current state. Design/methodology/appr
Publikováno v:
Radio Physics and Radio Astronomy, Vol 24, Iss 4, Pp 233-241 (2019)
Purpose: Theoretical studies of sensitivity fluctuations of a phased array antenna element for the GURT radio telescope of the new generation caused by seasonal changes of the ground parameters. Design/methodology/approach: A mathematical model of an
Publikováno v:
IEEE Transactions on Antennas and Propagation. 67:7304-7311
The new Giant Ukrainian Radio Telescope (GURT) intended for operation in 8–80 MHz range is now under construction. It employs an active phased array antenna composed of many dipole subarrays, several of which have been implemented and now are used
Publikováno v:
IEEE Transactions on Antennas and Propagation. 67:7312-7319
This second part of two articles’ sequence presents the detailed numerical analysis of electrical and noise parameters of a subarray of the Giant Ukrainian Radio Telescope (GURT) designed for operation in the frequency range of 8–80 MHz. The theo
We report about observations of the solar U+III bursts on 5 June of 2020 by means of a new active antenna designed to receive radiation in 4-70 MHz. This instrument can serve as a prototype of the ultra-long-wavelength radiotelescope for observations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27b2308d011e7963dab84281896aaaa5
Publikováno v:
Journal of Astronomical Instrumentation.
This paper presents the technique of numerical estimation of ground parameters impact on the performances of an active antenna used as an element of a phased array antenna of a modern low-frequency radio telescope. Three ground conditions were consid