Zobrazeno 1 - 10
of 34
pro vyhledávání: '"E. Vourch"'
Autor:
F. Dubos, F Delepaux, P. Lepeltier, E. Vourch, P Bosshard, L. Martin, C. Labourdette, Christian Feat, G. Navarre, J.C. Lafond
Publikováno v:
2016 10th European Conference on Antennas and Propagation (EuCAP).
Thales Alenia Space present a synthesis of on-going developments of MBA (Multiple Beams Antennas) concepts for HTS/V-HTS satellites applications. The main topics of interest address: 1. Ka and Q/V SFPB MBA Tx/Rx feeds for HTS system • 3 Ka Tx/Rx re
Autor:
Christian Feat, J M Bassaler, P. Lepeltier, G. Navarre, E. Vourch, F. Dubos, J.C. Lafond, C. Labourdette, F Delepaux, P Bosshard
Publikováno v:
The 8th European Conference on Antennas and Propagation (EuCAP 2014).
Thales Alenia Space (TAS) present a synthesis of Multiple beams antennas concepts, trade-off and main outcomes for satellites applications. The main topics of interest are: Multiple beams antennas sub-systems achievements for LEO satellites constella
Autor:
Jean-Philippe Taisant, F. Guillemin, H. Rigolot, I. Albert, M. Nadarassin, M. Romier, E. Vourch, Philippe Voisin, F. Michard, T. Girard
Publikováno v:
2012 15 International Symposium on Antenna Technology and Applied Electromagnetics.
This paper outlines THALES ALENIA SPACE activities in the context of reconfigurable missions with channelized amplification in Ku-band. Flexibility in Tx pattern coverage is achieved thanks to an antenna including a shaped reflector and a focal array
Autor:
E. Vourch, N. Fonseca, P. Lepeltier, S. Pouyez, P.J. Rinous, J. Santiago Provald, Y. Cailloce, I. Albert, A. Lacombe
Publikováno v:
2007 IEEE Antennas and Propagation Society International Symposium.
Today's satellite communication systems operate mainly in C and Ku frequency bands. They are characterized by broad regional coverages, relatively low satellite gain, EIRP and G/T, and modest data rates. Multibeam payloads and frequency re-use, assoc
Publikováno v:
The 15th Annual Meeting of the IEEE Lasers and Electro-Optics Society.
Since the first observation of the photorefractive effect in InP:Fe almost 20 years ago, unexpected applications have been demonstrated in the counter-propagating wave configuration. Dynamic Bragg gratings are obviously of interest in the WDM and in
Publikováno v:
IEEE Antennas and Propagation Society International Symposium (IEEE Cat. No.02CH37313).
Alcatel Space Industries has studied a complete space based telecom system for wideband applications (SKYBRIDGE). This paper presents the antenna that has been studied and developed for this application. A brief justification of the antenna architect
Publikováno v:
Proceedings of IEEE Antennas and Propagation Society International Symposium and URSI National Radio Science Meeting.
Several coupled slots antennas fed by a coplanar waveguide in uniplanar technology have been investigated using a full wave analysis. It is based on the use of integral equations technique solved by a 2-D method of moment. Theoretical results are com
Publikováno v:
1994 IEEE MTT-S International Microwave Symposium Digest (Cat. No.94CH3389-4).
In this paper a rigorous electromagnetic analysis of coplanar waveguide (CPW) to slotline transition is given using integral equations technique. The simulation of a bond wire on the CPW and a matched load at the ports of the transition is achieved t
Publikováno v:
Proceedings of IEEE Antennas and Propagation Society International Symposium and URSI National Radio Science Meeting.
A rigorous calculation of the magnetic current distribution and the radiated field for slot antennas in uniplanar technology is presented. The analysis is based on use of the integral equations technique associated with a 2D method of moments. The ca
Publikováno v:
IEEE Antennas and Propagation Society International Symposium. 1998 Digest. Antennas: Gateways to the Global Network. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.98CH36194).
Current X-band links from LEO satellites to ground stations are limited in data rates because of their low gain, due to the global coverage by a single beam. In order to increase the data rate while keeping low DC consumption (so low transmitted powe