Zobrazeno 1 - 10
of 19
pro vyhledávání: '"K. Najita"'
Autor:
Huei Wang, A.K. Oki, K. Najita, K.F. Sato, Richard Lai, P.C. Grossman, C.W. Chan, M.P. DeLisio, D.C. Streit, J. Cowles, Y.H. Chung
Publikováno v:
1998 IEEE MTT-S International Microwave Symposium Digest (Cat. No.98CH36192).
This paper examines the low-frequency noise properties of millimeter-wave GaAs and InP Schottky diodes. Measurements of diodes fabricated using both HEMT and HBT epitaxy will be presented. These noise measurements should enable the development of acc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81a5662f9f9c29cc4e4c9fc19e52cdc9
https://doi.org/10.1109/mwsym.1998.700706
https://doi.org/10.1109/mwsym.1998.700706
1/f noise modeling of InP HBT-based Schottky diodes for monolithic monolithic millimeter-wave mixers
Autor:
Liem T. Tran, M.P. DeLisio, A.K. Oki, K. Najita, K.F. Sato, Y.H. Chung, P.C. Grossman, C.W. Chan, J. Cowles, Huei Wang, E.W. Lin
Publikováno v:
1997 IEEE MTT-S International Microwave Symposium Digest.
We present a procedure for modeling the low-frequency 1/f noise properties of millimeter-wave InP HBT-based Schottky diodes. These noise properties, coupled with the device's small and large-signal characteristics, enable the generation of a comprehe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a441e326ac1ff800bd99b8eb67f34728
https://doi.org/10.1109/mwsym.1997.602928
https://doi.org/10.1109/mwsym.1997.602928
Reliable ICs fabricated using a production GaAs HBT process for military and commercial applications
Autor:
A.K. Oki, S. Bui, P.C. Grossman, K. Najita, D.C. Streit, M.M. Hoppe, T.R. Block, Liem T. Tran, H.J. Hennecke, F.M. Yamada, D.M. Smith, Donald K. Umemoto, E.A. Rezek, J. Cowles, Kevin W. Kobayashi, S.R. Olson, Michael D. Lammert
Publikováno v:
Proceedings of MILCOM '95.
Reliability performance of a complex analog integrated circuit (IC) fabricated using a production GaAs-AlGaAs heterojunction bipolar transistor (HBT) process technology is reported. Three temperature constant stress lifetest projects a median-time-to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3272c39ea3fdf89e19b4a9bea1fdf64
https://doi.org/10.1109/milcom.1995.483566
https://doi.org/10.1109/milcom.1995.483566
Publikováno v:
Journal of Atmospheric and Terrestrial Physics. 36:9-28
Electron content data obtained during 1965–1970 at the University of Hawaii have been analyzed statistically to obtain Dst and SD variations in electron content during strong and weak SC geomagnetic storms. The characteristic variations of Dst and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::878a099efdd951bbe7befbc5b468e314
https://doi.org/10.1016/0021-9169(74)90063-4
https://doi.org/10.1016/0021-9169(74)90063-4
Publikováno v:
Proceedings of the IEEE. 62:563-577
Earthquakes generate Rayleigh waves which travel along the surface of the earth about 20 times faster than the potentially destructive tsunami (if one is also generated) and reach distant points several hours before the tsunami. The Rayleigh wave exc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::027b857c42e1be8d4bb99c73ec7bc93e
https://doi.org/10.1109/proc.1974.9480
https://doi.org/10.1109/proc.1974.9480
Autor:
K. Najita, Gerd W. Prölss
Publikováno v:
Journal of Atmospheric and Terrestrial Physics. 37:635-643
Magnetic storm associated changes in the total electron content above Hawaii are investigated. After carefully discussing the method of analysis it is demonstrated that the typical effects seen at this low-latitude station are an initial increase fol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30feb0777dc4b65a5b5b57dca3cb8c0f
https://doi.org/10.1016/0021-9169(75)90058-6
https://doi.org/10.1016/0021-9169(75)90058-6
Publikováno v:
Journal of Atmospheric and Terrestrial Physics. 35:1889-1901
This study investigates the charge-exchange mechanism by which part of the energy contained in the magnetic storm ring current is injected into the low-latitude upper atmosphere and contributes to the energy balance in this region. The resulting temp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b6c7530e691f5d24297ea4505cf5d4a
https://doi.org/10.1016/0021-9169(73)90062-7
https://doi.org/10.1016/0021-9169(73)90062-7
Autor:
K. Najita, Frank Q. Orrall
Publikováno v:
Solar Physics. 15:176-194
We consider the possibility that white light flares are due to heating of the photosphere by a flux of energetic ions and electrons impinging on it from above. Particles with energy in the range 10 MeV to 1 BeV release most of their energy to the amb
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76dbae51a72756fa5b56a48fa8a6b8d2
https://doi.org/10.1007/bf00149484
https://doi.org/10.1007/bf00149484
Publikováno v:
Journal of Atmospheric and Terrestrial Physics. 35:173-181
The effects of sudden commencements on the frequency shifts of an HF Doppler sounder have been investigated during the period from January 1967 to June 1970 using the Doppler frequency data obtained at the University of Hawaii and geomagnetic data ob
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0d1fc634cb2bb70aab47543016031e2
https://doi.org/10.1016/0021-9169(73)90225-0
https://doi.org/10.1016/0021-9169(73)90225-0
Autor:
P. C. Yuen, K. Najita
Publikováno v:
Journal of Geophysical Research. 84:1253
Earthquake-generated Rayleigh waves excite shock waves at the surface of the earth which propagate upward nearly vertically through the atmosphere as infrasound. The HF Doppler sounder is a sensitive tool for detecting and recording these infrasounds
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::230e4be41184bd624aab826418321e8b
https://doi.org/10.1029/ja084ia04p01253
https://doi.org/10.1029/ja084ia04p01253