Mobile satellite communication terminal and method for using...

H - Electricity – 01 – Q

Patent

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Details

H01Q 1/24 (2006.01) H01Q 5/00 (2006.01) H01Q 9/30 (2006.01) H01Q 11/08 (2006.01) H01Q 21/28 (2006.01) H04B 7/185 (2006.01)

Patent

CA 2390089

A mobile satellite communication terminal which provides dual mode communication and has a small volume even when it is carried because dual-mode antennas are contained/installed in a structure simpler than conventional. A method for using the same is also disclosed. A satellite antenna (6) has a hollow tubular shape, and a ground antenna (5) is disposed in the hollow part of the satellite antenna (6). The satellite antenna (6) is retractable into the case of the terminal and extendable from it, and comprises a helical antenna element section (61) having tubular surface wound spirally with four turns of a wire (611), and an antenna feeder section (62) provided at the lower part of the helical antenna element section (61) integrally therewith and having, on the tubular surface, circuits (621, 622, 623).

Cette invention se rapporte à une borne de communication satellite mobile, qui assure une communication bimode et occupe un petit volume, même lorsqu'elle est transportée, étant donné que des antennes bimodes sont contenues/installées dans une structure plus simple que les structures similaires de la technique actuelle. Un procédé d'utilisation de cette borne est également présenté. Une antenne satellite (6) possède une forme tubulaire creuse, et une antenne de terre (5) est disposée dans la partie évidée de l'antenne satellite. L'antenne satellite (6) est rétractable dans le boîtier de la borne et peut se déployer à partir de ce boîtier, et elle comprend une section élément d'antenne hélicoïdale (61) comportant une surface tubulaire enroulée en spirale avec quatre spires de fil (611) et une section alimentateur d'antenne (62) placée dans la partie inférieure de la section élément d'antenne hélicoïdale (61) formée solidaire avec elle et comportant des circuits (621, 622, 623) sur ladite surface tubulaire.

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