Chapitre 6. Antennes

Chapitre 6. Antennes
•Antenne isotrope
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piso=Pe
4πd2
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•Caractéristiques d'une antenne réelle
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•Directivité d'une antenne et gain
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GdBi=10 log(G)
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A3)('3"#$%&$$&'&(%'*+/&4%+1&',3)('3&'5#+$'*&'3"#$%&$$&'&(%'+7,-/%#$%8
•puissance isotrope rayonnée équivalente (PIRE) d'une antenne
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Pr=PeGrGe(λ
4πd)
2
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Pr[dBm ]=Pe[dBm]+Gr[dBi]+Ge[dBi ]+10 log (λ
4πd)
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Pr[dBm ]=Pe[dBm]+Gr[dBi]+Ge[dBi ]+10 log (λ
4πd)−Apertes [dB]
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3/3