Home » Knowledge Centre

Knowledge Centre

Find a document written by the best international scientists in our secure database.
24787 documents
THz HEB heterodyne receivers for space and ground based radio astronom
Sergey Cherednichenko, Vladimir Drakinskiy, Therese Berg
THz HEB heterodyne receivers for space and ground based radio astronomy Sergey Cherednichenko, Vladimir Drakinskiy, Therese Berg Abstract -- The paper discusses design, fabrication and test results of 1.4-1.9 THz hot-electron bolometer (HEB) mixers for the Herschel Space Observatory. The mixer performance was tested across its RF band as well as the IF band (2.4-4.8 GHz). The paper demonstrates th
Favorite
2005
Space-born payload equipment: current trends and perspectives
Jean-Christophe Cayrou, Paul Maynadier, Christine Miguel, Frantz Bodereau, Jean-Louis Cazaux
Space-born payload equipment: current trends and perspectives Jean-Christophe Cayrou, Paul Maynadier, Christine Miguel, Frantz Bodereau, Jean-Louis Cazaux Abstract -- Active microwave products -- low noise amplifiers, frequency converters, receivers, channel amplifiers, solid state power amplifiers -- are always required to be increasingly light and consequently cheap, as a strong relationship bet
Favorite
2005
Slot antennas for various space and avionic applications
Victor A. Katrich, Valentina A. Lyashchenko, Mikhail V. Nesterenko, Sergey L. Berdnik
Slot antennas for various space and avionic applications Victor A. Katrich, Valentina A. Lyashchenko, Mikhail V. Nesterenko, Sergey L. Berdnik Abstract -- The Galerkin's method with restricted spectrum of space harmonic and the method of induced magnetomoLive forces with the functions for magnetic current distribution in the slot obtained by the asymptotic method of averaging are applied to the pr
Favorite
2005
Planck-LFI: instrument design and ground calibration
M. Bersanelli', B. Aja2, E. Artal2, M. Balasini3, G. Baldan3, P. Battaglia3, T. Bernardino', P. Bhandari5, E. Blackhurst6, L. Boschini3, R. Bowman', C. Burigana7, R.C. Butler7, B. Cappellini', F. Cavaliere', E Colombo', F. Cuttaia7, R. Davis6, X. Dupac8, J. Edgeley6, O. D'Arcangelo9, L. De La Fuente2, A. De Rosa7, F. Ferrari', L. Figini9, S. Fogliani8, C. Franceschet3, E. Franceschi7, P. Jukkala1°, T. Gaier5, A. Galtress6, S. Garavaglia9, F. Gomez - Renasco4, P. Guzzi3, J.M. Herreros", R. Hoyland", N. Hughes1D, D. Kettle6, V.H. Kilpel 10, M. Laaninen10, M. Lapolla3, C.R. Lawrence', D. Lawson6, R. Leonardi'2, P. Leutenegger3, S. Levins, P.B. Lilje1', P.M. Lubin', D. Maino', M. Malaspina?, N. Mandolesi7, G. Mari9, M. Maris8, E. Martinez-Gonzalez', A. Mediavilla2, P. Meinhold12, A. Mennella', M. Miccolis3, G. Morgante7, A. Nash', R. Nesti14, L. Pagan', C. Paine', J.P. Pascual', F. Pasian8, M. Pecora3, S. Pezzati', M. Pospieszalski15, P. Platania9, M. Prina5, R. Rebolo", N. Roddis6, N. Sabatini9, M. Sandri7, M.J. Salmon', M. Seiffert5, R. Silvestri', A. Simonetto9, G.F. Smoot16, C. Sozzi9, L. Stringhetti7, L. Terenzi7, M. Tomasi', J. Tuovinen17, L. Valenziano7, J. Varis17, F. Villa', L. Wade', A. Wilkinson6, F. Winder6, A. Zacchei8
Planck-LFI: instrument design and ground calibration strategy M. Bersanelli', B. Aja2, E. Artal2, M. Balasini3, G. Baldan3, P. Battaglia3, T. Bernardino', P. Bhandari5, E. Blackhurst6, L. Boschini3, R. Bowman', C. Burigana7, R.C. Butler7, B. Cappellini', F. Cavaliere', E Colombo', F. Cuttaia7, R. Davis6, X. Dupac8, J. Edgeley6, O. D'Arcangelo9, L. De La Fuente2, A. De Rosa7, F. Ferrari', L. Figini
Favorite
2005
Perspective for microwave instruments in ESA's future earth observation missions
C.C. Lin, F. Hélière, U. Klein, J.J. Guijarro, B. Rommen, P. Vogel, P. de Maagt, R. Meynart
Perspective for microwave instruments in ESA's future earth observation missions C.C. Lin, F. Hélière, U. Klein, J.J. Guijarro, B. Rommen, P. Vogel, P. de Maagt, R. Meynart Abstract -- This paper presents an overview of the microwave instruments currently in development under the Future Programmes of the ESA's Earth Observation Envelop Programme. The description of the instruments will be structur
Favorite
2005
Optical-microwave links for LO distribution in space systems
Bertrand Onillon, Stéphanie Constant, Gianandrea Quadric, Benoit Benazet2, Olivier Llopis
Optical-microwave links for LO distribution in space systems 2 Bertrand Onillon, Stéphanie Constant, Gianandrea Quadric, Benoit Benazet , Olivier Llopis Abstract -- This paper presents the results obtained on different systems dedicated to the optical distribution of high spectral purity RE and microwave signals in a satellite payload or towards the elements of an active antenna. First, the inter
Favorite
2005
Miniaturised DBF communication modules for broadband mobile satellite access at Ka-band
Holger Pawlak, Leif C. Stange', Alexander Molke, Arne F. Jacob, Oliver Litschke2, Sybille Holzwarth2, Michael Thiel3, Achim Dreher', Christian Hunscher4
Miniaturised DBF communication modules for broadband mobile satellite access at Ka-band Holger Pawlak, Leif C. Stange', Alexander Molke, Arne F. Jacob, Oliver Litschke2, Sybille Holzwarth2, Michael Thiel3, Achim Dreher', Christian Hunscher4 Abstract -- This paper describes the implementation of and measurements on highly integrated transmitter and receiver modules featuring digital beamforming (DB
Favorite
2005
Microwave and digital equipment for spacecraft and satellite payloads
Ralph Green
Microwave and digital equipment for spacecraft and satellite payloads Ralph Green Abstract -- A review of design considerations and characteristics for microwave and digital payload equipments used in geo-stationary communications satellite with examples from the EADS Astrium Inmarsat-4 Fl architecture. Index terms -- EADS Astrium, payload equipments, microwaves, satellites, Inmarsat, SSPA, FGU.
Favorite
2005
GaN microwaves for space
Frank van Vliet, Marc van Heijningen, Friedbert van Raay', Rudiger Quay'
GaN microwaves for space Frank van Vliet, Marc van Heijningen, Friedbert van Raay', Rudiger Quay' Abstract -- This paper presents a background on the use of recent GaN technologies for realising high power millimetre wave MMICs. An overview of state-of-the-art performance of GaN devices and MMICs for millimetre wave applications is given including details on the latest technology. Two Ka-band ampl
Favorite
2005
Editorial
François Deborgies, Tapani Närhi
EUROPEAN MICROWAVE ASSOCIATION EuMA Editorial François Deborgies, Tapani Närhi Microwaves in Space date back to almost 50 years ago. As a matter of fact, it all started in 1957 with the first "artificial satellite", Sputnik, which was simply an RF transmitter. Today, microwaves play a crucial role onboard any space vessel since the RF link is the umbilical cord to Earth. Microwave electronics is
Favorite
2005
0 document

ArtWhere Création de site Internet