Zobrazeno 1 - 10
of 26
pro vyhledávání: '"J.E. Oswald"'
Autor:
M.A. Girard, R.R. Lay, R.C. LaBelle, R. P. Thurstans, William G. Read, G.K. Lau, James R. Holden, Marc Walch, V. S. Perun, K.M. Chandra, Richard E. Cofield, Dong Wu, Lucien Froidevaux, N.C. Patel, R. Dodge, Yibo Jiang, Hugh C. Pumphrey, M.C. Tope, J.C. Lam, D. T. Cuddy, J.E. Oswald, M. J. Filipiak, P. C. Stek, M. J. Schwartz, G. L. Manney, Robert Jarnot, R. A. Fuller, Brian Knosp, B.V. Chudasama, Nathaniel J. Livesey, Gun-Shing Chen, K.A. Lee, O. Quintero, M. C. Chavez, P. A. Wagner, D. A. Flower, D.M. Scaff, Joe W. Waters, Robert S. Harwood, M.A. Boyles, M. S. Loo, D.M. Pukala, Herbert M. Pickett, D. Miller, Peter H. Siegel, W. Van Snyder, Jonathan H. Jiang, Michelle L. Santee
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 44:1075-1092
The Earth Observing System Microwave Limb Sounder measures several atmospheric chemical species (OH, HO/sub 2/, H/sub 2/O, O/sub 3/, HCl, ClO, HOCl, BrO, HNO/sub 3/, N/sub 2/O, CO, HCN, CH/sub 3/CN, volcanic SO/sub 2/), cloud ice, temperature, and ge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::579c69329971c4bbc357bbb78ea52bba
https://doi.org/10.1109/tgrs.2006.873771
https://doi.org/10.1109/tgrs.2006.873771
Autor:
William L. Bishop, T. H. Lee, D.A. Humphrey, Imran Mehdi, Steven M. Marazita, Thomas W. Crowe, J.E. Oswald, A. Pease, Robert J. Dengler, Peter H. Siegel, S.C. Martin
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 46:2036-2042
Low-noise broad intermediate frequency (IF) band 240-GHz subharmonically pumped planar Schottky diode mixers for space-borne radiometers have been developed and characterized. The planar GaAs Schottky diodes are fully integrated with the RF/IF filter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe21c5e6123221b742f2ced143ca4ecb
https://doi.org/10.1109/22.739280
https://doi.org/10.1109/22.739280
Autor:
Thomas W. Crowe, R.J. Mattauch, Robert J. Dengler, Peter H. Siegel, J.E. Oswald, Imran Mehdi, William L. Bishop
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 41:1913-1921
This paper presents design and performance data for a 215-GHz subharmonically pumped waveguide mixer using an antiparallel-pair of planar air-bridge-type GaAs Schottky-barrier diodes. The waveguide design is a prototype for a 640-GHz system and uses
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd5b3867f1fa19b88d494a6ceb4b1345
https://doi.org/10.1109/22.273416
https://doi.org/10.1109/22.273416
Autor:
Margaret A. Frerking, A. Pease, Imran Mehdi, T. Koch, J.E. Oswald, Peter H. Siegel, D.A. Humphrey, Moshe Kim, T. H. Lee, Neal R. Erickson, Robert J. Dengler
Publikováno v:
IEEE Microwave and Guided Wave Letters. 8:232-234
The design and performance of a subharmonically pumped (SHP) 557-GHz mixer driven by a solid-state local oscillator (LO) are reported. Whisker contacts are not required as both the mixer and LO utilize planar Schottky devices. A measured mixer noise
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c4b3acff13360ac3c8c6273d8621a1c
https://doi.org/10.1109/75.678575
https://doi.org/10.1109/75.678575
Autor:
Richard R. Lay, Paul C. Stek, Herbert M. Pickett, J.E. Oswald, Candace M. Shoemaker, Richard E. Cofield, M. J. Schwartz, Robert Jarnot, James R. Holden, Karen A. Lee, D. A. Flower
Publikováno v:
SPIE Proceedings.
The Microwave Limb Sounder instrument was launched aboard NASA's EOS AURA satellite in July, 2004. The overall scientific objectives for MLS are to measure temperature, pressure, and several important chemical species in the upper troposphere and str
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17356aa145196c4e09fe26fb5c669de9
https://doi.org/10.1117/12.620146
https://doi.org/10.1117/12.620146
Autor:
D.A. Humphrey, S.C. Martin, Robert J. Dengler, Peter H. Siegel, J.E. Oswald, Imran Mehdi, T. H. Lee, A. Pease, R.P. Smith
Publikováno v:
1996 IEEE MTT-S International Microwave Symposium Digest.
A 210 GHz waveguide subharmonically-pumped mixer with integrated antiparallel-pair planar "T-anode" Schottky diodes and a novel compact multiple-layer bias circuit has successfully fabricated and measured. The anodes are defined by electron-beam lith
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::edf8c07860b467922c2aed4d7050ebed
https://doi.org/10.1109/mwsym.1996.508535
https://doi.org/10.1109/mwsym.1996.508535
Autor:
S. C. Martin, R. P. Smith, A. Pease, D.A. Humphrey, T. H. Lee, Robert J. Dengler, J.E. Oswald, Imran Mehdi, Peter H. Siegel
Publikováno v:
1996 IEEE MTT-S International Microwave Symposium Digest.
We report on the first planar two-diode subharmonic mixer operating at 600 GHz. The measured mixer noise temperature of 4200 K DSB is only a factor of 2 worse than the best single diode (whisker-contacted or planar) fundamental mixers and a factor 1.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1fb43413947d8a7d43736dc335b506e9
https://doi.org/10.1109/mwsym.1996.508534
https://doi.org/10.1109/mwsym.1996.508534
Autor:
Debabani Choudhury, Robert J. Dengler, S.C. Martin, Peter H. Siegel, J.E. Oswald, Antti V. Räisänen, Margaret A. Frerking, R.P. Smith
Publikováno v:
1994 IEEE MTT-S International Microwave Symposium Digest (Cat. No.94CH3389-4).
A frequency tripler has been developed using an integrated planar back-to-back barrier-n-n/sup +/ (bbBNN) varactor device in a waveguide mount at 220 GHz. The multiplier is based on a novel split-waveguide block design and a new fully integrated plan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c47ed943c13483b5e7067d19e478dfa
https://doi.org/10.1109/mwsym.1994.335242
https://doi.org/10.1109/mwsym.1994.335242
Autor:
Debabani Choudhury, Antti V. Räisänen, Robert J. Dengler, J.E. Oswald, Imran Mehdi, Peter H. Siegel
Publikováno v:
1994 IEEE MTT-S International Microwave Symposium Digest (Cat. No.94CH3389-4).
A broadband subharmonic mixer utilizing a planar antiparallel Schottky barrier diode pair has been developed for 220 GHz. The mixer is based on a novel split-waveguide block design consisting of only two central pieces and two tuner drivers which pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b252c1487934af9e939d485af9a4e218
https://doi.org/10.1109/mwsym.1994.335241
https://doi.org/10.1109/mwsym.1994.335241
Autor:
Peter H. Siegel, J.E. Oswald
Publikováno v:
1994 IEEE MTT-S International Microwave Symposium Digest (Cat. No.94CH3389-4).
The finite difference time domain (FDTD) method is applied to the analysis of microwave, millimeter-wave and submillimeter-wave filter circuits. In each case, the validity of this method is confirmed by comparison with measured data. In addition, the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f13574556152581370cf91f45af8cc60
https://doi.org/10.1109/mwsym.1994.335251
https://doi.org/10.1109/mwsym.1994.335251