Set of concentric antennas for hyperfrequency waves

Details Set of concentric antennas for hyperfrequency waves Set of concentric antennas for hyperfrequency waves

H - Electricity

01

Q

H01Q 5/00 (2006.01) H01Q 1/52 (2006.01) H01Q 13/10 (2006.01) H01Q 21/06 (2006.01)

Patent

CA 2228637

The invention relates to a set of two concentric antennas for two frequency bands in the hyperfrequency domain. This system includes a device (28) such as a quarter-wave trap between the two concentric antennas (14, 16) to eliminate or attenuate the propagation of waves from the antenna closest to the centre (14) to the one further away (16). In this way, the signals of each antenna are not disrupted by the signals of the other antenna.

L'invention se rapporte à un ensemble à deux antennes concentriques pour deux bandes de fréquences du domaine des hyperfréquences. Cet ensemble comporte, entre les deux antennes concentriques (14, 16), un moyen (28), tel qu'un piège quart d'onde, pour éliminer atténuer la propagation des ondes de l'antenne la plus proche du centre (14) vers l'antenne plus éloignée (16). Ainsi, les signaux de chaque antenne ne sont pas per-turbes par les signaux de l'autre antenne.

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