Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Amith H. Narayan"'
Autor:
Brian Beaudoin, David Matthew, Jayakrishnan A. Karakkad, Steven H. Gold, Dennis Papadopoulos, G. M. Milikh, Amith H. Narayan, Gregory S. Nusinovich, Antonio Ting, Thomas M. Antonsen
Publikováno v:
Journal of Electromagnetic Waves and Applications. 31:1786-1801
A mobile heater for ionospheric modification studies requires a new megawatt (MW) class radio frequency (RF) source operating with an antenna array 1/20 the area of the High-Frequency Active Auroral Research Program (HAARP). To deliver an effective p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b114ff9135f915fada6c70510ce33a3c
https://doi.org/10.1080/09205071.2017.1360214
https://doi.org/10.1080/09205071.2017.1360214
Autor:
Gregory S. Nusinovich, Steven H. Gold, Thomas M. Antonsen, Jayakrishnan A. Karakkad, Amith H. Narayan, Antonio Ting, Brian Beaudoin
Publikováno v:
2018 IEEE International Conference on Plasma Science (ICOPS).
The ionosphere plays a prominent role in the performance of critical civilian and military communication systems. The properties of the ionosphere can be modified by Ionospheric Modification (IM). The key instrument in IM research is a powerful, grou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d82399bd0561d983be26d4672f17f07
https://doi.org/10.1109/icops35962.2018.9575255
https://doi.org/10.1109/icops35962.2018.9575255
Autor:
Gregory S. Nusinovich, Thomas M. Antonsen, Brian Beaudoin, Steven H. Gold, Jayakrishnan A. Karakkad, Amith H. Narayan, Antonio Ting
Publikováno v:
2018 IEEE International Conference on Plasma Science (ICOPS).
The power extraction circuit in an lOT (Inductive Output Tube) is a resonant circuit made of actual inductors and capacitors at low frequencies (3–10 MHz) due to the size limitation of a cavity. To build a mobile, low frequency range, high power so
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f9a4d7f0740d1acbf904f9e085b7629
https://doi.org/10.1109/icops35962.2018.9575422
https://doi.org/10.1109/icops35962.2018.9575422
Autor:
Gregory S. Nusinovich, Steven H. Gold, Antonio Ting, Amith H. Narayan, Thomas M. Antonsen, Brian Beaudoin, Jayakrishnan A. Karakkad
Publikováno v:
2018 IEEE International Vacuum Electronics Conference (IVEC).
Results of a scaled experiment using the electron beam produced by a gridded thermionic cathode from an Inductive Output Tube electron gun to drive an external lumped element circuit for high efficiency radio frequency generation are reported. The IO
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4019f47928e686b48105cf1f5c79edeb
https://doi.org/10.1109/ivec.2018.8391532
https://doi.org/10.1109/ivec.2018.8391532
Autor:
Antonio Ting, Charles Turner, Steven H. Gold, Thomas M. Antonsen, Amith H. Narayan, Jayakrishnan A. Karakkad, Brian Beaudoin, Gregory S. Nusinovich
Publikováno v:
2017 IEEE International Conference on Plasma Science (ICOPS).
A mobile heater for ionospheric modification studies will require a new megawatt class RF source operating with an antenna array that is 1/20 the area of HAARP [1]. In order to deliver an effective power density comparable to that of HAARP, the total
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::512ff79e14ca9b44b1ffa44621147d42
https://doi.org/10.1109/plasma.2017.8496205
https://doi.org/10.1109/plasma.2017.8496205
Autor:
Brian Beaudoin, Jayakrishnan A. Karakkad, Thomas M. Antonsen, Gregory S. Nusinovich, Charles Turner, Steven H. Gold, Antonio Ting, Amith H. Narayan
Publikováno v:
2017 IEEE International Conference on Plasma Science (ICOPS).
The resonant circuit in an Inductive Output Tube (IOT) extracts kinetic energy of the modulated electron beam converting it ti electromagnetic energy. For the application considered here, mobile low-frequency sources (3–10 MHz) for ionospheric heat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8825bef26410eb64a1aef912634d08b7
https://doi.org/10.1109/plasma.2017.8496150
https://doi.org/10.1109/plasma.2017.8496150
Autor:
Charles Turner, Amith H. Narayan, Thomas M. Antonsen, Antonio Ting, Jayakrishnan A. Karakkad, Brian Beaudoin, Gregory S. Nusinovich
Publikováno v:
2017 IEEE International Conference on Plasma Science (ICOPS).
Our research is motivated by the desire to build a transmitter for modification of the ionosphere that can operate in the mid-latitudes, be moveable, and have comparable effective radiated power to stationary, large land-based, fixed facilities such
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6814a960f2b19639e99d12246f456b10
https://doi.org/10.1109/plasma.2017.8496207
https://doi.org/10.1109/plasma.2017.8496207
Autor:
Gregory S. Nusinovich, Amith H. Narayan, Charles Turner, Jayakrishnan A. Karakkad, Brian Beaudoin, Thomas M. Antonsen, Antonio Ting
Publikováno v:
2017 Eighteenth International Vacuum Electronics Conference (IVEC).
We report progress on the development of a high-power, high-efficiency source for a moveable ionospheric heater. The source is based on the Inductive Output Tube concept. The application requires operation in the 3–10 MHz range, thus opening the po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1054dea467fd48b2b39be7345581b368
https://doi.org/10.1109/ivec.2017.8289643
https://doi.org/10.1109/ivec.2017.8289643
Autor:
Thomas M. Antonsen, Jayakrishnan A. Karakkad, Antonio Ting, Amith H. Narayan, Brian Beaudoin, Gregory S. Nusinovich
Publikováno v:
Physics of Plasmas. 26:093101
We consider the development of a highly efficient, gridless tetrode as a megawatt-level RF source in the 3 to 10 MHz range for application in mobile ionospheric heaters. Such a heater has potential advantages over the stationary facilities, such as H
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d45bdf4a2e58f51ea3a47407a99004bb
https://doi.org/10.1063/1.5090886
https://doi.org/10.1063/1.5090886
Autor:
Brian Beaudoin, Jayakrishnan A. Karakkad, Gregory S. Nusinovich, Nikhil Goyal, Charles Turner, Amith H. Narayan, Connor Thompson, Thomas M. Antonsen
Publikováno v:
2016 IEEE International Conference on Plasma Science (ICOPS).
The ionosphere plays an important role in the performance of critical civilian and defense communication systems. Perturbation studies of the ionosphere allow us to investigate the ionosphere and improve the performance of communications that rely on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4f4db24477f6cd67f9bc8fb2408d10a
https://doi.org/10.1109/plasma.2016.7534058
https://doi.org/10.1109/plasma.2016.7534058