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Antenna technology at INTELSAT

Technique des antennes INTELSAT

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Abstract

After a brief summary of the evolution of antenna technology atintelsatand of specific constraints for theintelsatsystem, the paper presents a reminder of the fundamentals of multi-beam antenna design : reflector size and number of feed elements, spill-over loss, cross-polarization, gain factor of merit (and the equivalent notions of gain xarea product and gain xbeamwidth product). Also, the paper presents a concise description of the antenna subsystem ofintelsatV and of the hemi/zone antenna ofintelsatVI, and provides the references of detailed publications. Then the paper provides highlights ofintelsatresearch and development on satellite antenna technology, refering to available publications for more detail. Finally, the paper presents a brief summary of the progress in antenna technology forintelsatEarth stations.

Analyse

Après un bref rappel de l’évolution technique des antennesintelsat,et des contraintes propres au systèmeintelsatlui-même, Fauteur présente un rappel des notions fondamentales pour l’étude des antennes multifaisceaux : dimensions du réflecteur et nombre d’éléments de la source, pertes par débordement,polarisation croisée, facteur de mérite en gain (et les notions équivalentes de produit gain xsurface de couverture et gain xouverture angulaire du faisceau). Aussi, l’auteur présente une description succincte du sous-système antenne d’intelsatV et de l’antenne d’intelsatVI pour couverture d’hémisphères et de zones,et fournit les références de publications plus détaillées. Ensuite, l’auteur effectue un survol du programme de recherche et développement d’intelsatsur la technique des antennes pour satellites, et donne les références de publications plus détaillées disponibles dans la littérature. Enfin, l’auteur présente un bref résumé du progrès technique pour les antennes des stations terriennesintelsat.

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  1. International Telecommunications Satellite Organization intelsat, 490 l’Enfant Plaza S.W., 20024, Washington, D.C

    Pierre Neyret

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  1. Pierre Neyret
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Neyret, P. Antenna technology at INTELSAT. Ann. Télécommun. 40, 361–377 (1985). https://doi.org/10.1007/BF03003644

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