Zobrazeno 1 - 10
of 97
pro vyhledávání: '"Kul B. Bhasin"'
Publikováno v:
SpaceOps 2014 Conference.
The main purpose of the Small Space-Based Geosynchronous Earth orbiting (GEO) satellite is to provide a space link to the user mission spacecraft for relaying data through ground networks to user Mission Control Centers. The Small Space Based Satelli
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 44:1279-1288
A deep space satellite downconverter receiver was proposed by Jet Propulsion Laboratory (JPL) and NASA Lewis Research Center (LeRC) for the Naval Research Laboratory's (NRL) high temperature superconductivity space experiment, phase-II (HTSSE-II) pro
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 5:3191-3194
We report on the electrical characterization of Ba/sub 0.5/Sr/sub 0.5/TiO/sub 3//YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta///LaAlO/sub 3/ multilayer structure. This structure was fabricated using a pulsed laser deposition technique yielding film thicknes
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 5:2559-2562
YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// (YBCO) films on sapphire substrates have been tested for planar microwave applications such as filters and resonators. We have measured the unloaded quality factors (Q/sub 0/) of X-band microstrip linear resona
Autor:
G.G. Ortiz, R. F. Leonard, J.G. Bowen, P.D. Wamhof, Kul B. Bhasin, B.H. Fujiwara, C.M. Chorey, A.J. Guern, J. B. Barner, Hamid Javadi, Robert R. Romanofsky, J.J. Bautista, Marc C. Foote, Richard P. Vasquez, W. Chew, D.L. Rascoe, B.J. Hunt
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 5:2075-2078
Low noise receivers play critical role in space applications. Thin film high-critical-temperature-superconducting (HTS) passive circuits were combined with GaAs microwave devices to achieve ultra low noise and small size receiver downconverter at 77
Publikováno v:
Journal of Materials Research. 10:810-816
YBa2Cu3O7−x (YBCO) and barrier layer films were deposited on single-crystal (Y2O3)0.09(ZrO2)0.91 substrates cut between 3.6 and 35.7°off-axis from the (001) planes. The barrier layers were (Y2O3)0.065(Y-ZrO2)0.935(Y-ZrO2), Y2O3, or multilayered st
Publikováno v:
Thin Solid Films. 238:123-126
The oxygen pressure PO2 during growth of strontium titanate (SrTiO3) films on single crystals of (1 1 02) oriented sapphire (Al2O3) substrates significantly influenced the film orientations. The films were deposited using a pulsed laser (248 nm) depo
Publikováno v:
Microwave and Optical Technology Letters. 6:752-755
The performance of 7.3-GHz two-pole bandpass filters (5% bandwidth) fabricated on double-sided Y-Ba-Cu-O and Tl-Ba-Ca-Cu-O thin films deposited on LaAlO3 is discussed. At 77 K, the Tl-Ba-Ca-Cu-O and Y-Ba-Cu-O superconducting filters exhibited minimum
Autor:
Guest Kul B. Bhasin
Publikováno v:
Microwave and Optical Technology Letters. 6:725-728
Publikováno v:
IEEE Transactions on Antennas and Propagation. 41:967-974
The recent discovery of high-temperature superconductors (HTSs) has generated a substantial amount of interest in microstrip antenna applications. However, the high permittivity of substrates compatible with HTS causes difficulty in feeding such ante