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Conception d'antennes pour les applications de télémétrie biologique
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ISBN10: 6202497262
ISBN13: 9786202497268
Publisher: Editions Notre Savoir
Published: Jun 30 2025
Pages: 88
Weight: 0.28
Height: 0.21 Width: 6.00 Depth: 9.00
Language: French
ISBN13: 9786202497268
Publisher: Editions Notre Savoir
Published: Jun 30 2025
Pages: 88
Weight: 0.28
Height: 0.21 Width: 6.00 Depth: 9.00
Language: French
Un réseau corporel sans fil (WBAN) nécessite plusieurs antennes pour effectuer différents types de communications à différents endroits du corps. Afin de réduire le nombre d'antennes, il est donc nécessaire de disposer d'antennes flexibles, c'est-à -dire qu'une seule antenne doit pouvoir servir à plusieurs types de communication. Dans le cas d'un WBAN, l'antenne doit être placée sur le corps, sa forme doit donc être ajustable en fonction de celui-ci. La plupart des parties du corps sont courbées, une antenne plate ne peut donc pas suivre la courbure du corps et certaines parties de l'antenne dépasseront, ce qui peut gêner les mouvements naturels du corps. Une antenne de forme courbée peut suivre la courbure du corps, c'est pourquoi l'antenne proposée est courbée. L'antenne courbée décrite dans cet ouvrage est conçue pour émettre à deux fréquences, 2,45 GHz et 5,8 GHz, et la modélisation est réalisée à l'aide du logiciel CST. L'antenne proposée a moins d'effet sur le corps en termes de rayonnement. La valeur DAS de l'antenne est de 0,676 W/kg à 2,45 GHz et de 0,294 W/kg à 5,8 GHz. Ces valeurs de DAS sont bien inférieures aux limites fixées pour le DAS en Inde.
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