Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Gerard Caille"'
Publikováno v:
International Journal of Antennas and Propagation, Vol 2009 (2009)
A deterministic procedure to design a nonperiodic planar array radiating a rotationally symmetric pencil beam pattern with an adjustable sidelobe level is proposed. The elements positions are derived by modifying the peculiar locations of the sunflow
Externí odkaz:
https://doaj.org/article/6f86a84d82dd4da1845884c6c88f1cbd
Autor:
Jean-Marc Carrere, Cyril Luxey, Jose Marie Baro, Gerard Caille, Georges Kossiavas, Herve Legay, Robert Staraj
Publikováno v:
Annales Des Télécommunications. 57:1019-1035
Les antennes pour la prochaine generation de telephonie mobile necessitent un fonctionnement multibande mais de plus chaque bande doit etre individuellement « large bande », ceci dans un encombrement le plus faible possible. Cet article presente un
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dabf84e2f8d9ebb774debf2a13344a9e
https://doi.org/10.1007/bf02999452
https://doi.org/10.1007/bf02999452
Publikováno v:
11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005].
We sum-up the developments of Satellite Array Antennas at Alcatel Space in the last decade; from elegant breadboards (EBB) until flight models (FM), as answers to stringent requirements for next-generation TV-broadcast systems (providing also fast in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16ac2a4526a1688de9215b42d4363bb0
https://doi.org/10.1109/antem.2005.7852043
https://doi.org/10.1109/antem.2005.7852043
Autor:
Gerard Caille, Jean-Didier Gayrard
Publikováno v:
22nd AIAA International Communications Satellite Systems Conference & Exhibit 2004 (ICSSC).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef35f5f7a6d25d0648308e90bf3c4be0
https://doi.org/10.2514/6.2004-3195
https://doi.org/10.2514/6.2004-3195
Autor:
Alcatel Space, Gerard Caille, Yann Cailloce, Olivier Vendier, J.L. Cazaux, Herve Legay, Claude Drevon
Publikováno v:
CANEUS 2004 Conference on Micro-Nano-Technologies.
INTRODUCTION Generally speaking, space has not been considered so far as a key player in new technologies. It is more a fast follower, the reason being the long and costly qualification programs which are directly linked to the combination of long li
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d0ab799074f996fe35ffd0734f0f4b1
https://doi.org/10.2514/6.2004-6754
https://doi.org/10.2514/6.2004-6754
Publikováno v:
Proceedings of IEEE Antennas and Propagation Society International Symposium.
SPOT-Radar is the project for an X-band synthetic aperture radar (SAR) reusing the ground segment of SPOT. The subpanel active antenna demonstrator has demonstrated that 768 patches, 100 T/R (transmit/receive) active modules, three power supplies, an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5356f7246427826d20669436d9e30858
https://doi.org/10.1109/aps.1993.385362
https://doi.org/10.1109/aps.1993.385362
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e63385eff58f0b5c3a2d1e643b282f98
https://doi.org/10.1109/aps.1998.698736
https://doi.org/10.1109/aps.1998.698736
Publikováno v:
SPIE Proceedings.
Two new geometrical concepts of scatterometer were investigated in order to reduce the variation of incidence angle on the fore and aft beams. The first one has fore, aft and mid beams nearly parallel and directed across the satellite track. The seco
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::740ace762c86d0d2f466d8d818c04240
https://doi.org/10.1117/12.227157
https://doi.org/10.1117/12.227157
Publikováno v:
Microwave Instrumentation for Remote Sensing of the Earth.
ALCATEL ESPACE, Toulouse, France, is developing active antenna technology, and designing and manufacturing tiles for two civil radar projects. One is for SPOTRADAR, a CNES (French Space Agency) project, and consists of 1/64th (equals one tile) of a 1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c8426b3f13352867a5d498fa33d0378
https://doi.org/10.1117/12.152604
https://doi.org/10.1117/12.152604
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