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Article dans une revue
UWB Antennas Beamforming Using Passive Time-Reversal Device
Abstract : In this letter, the feasibility of a new concept of passive antenna beamformer is investigated. The main idea is to develop a (1×N)-ports device in which the weightings on output ports are applied by time-reversal operation. The control of antennas weightings is then contained in the input waveform without the need of active components or external control signals. This approach is validated experimentally by radiation pattern measurement of a four-Vivaldi-antennas array, associated to a small reverberation cell beamformer. Finally, this concept is applied to realize a passive ultrawideband (UWB) phased-array radar for target imaging.
https://hal-unilim.archives-ouvertes.fr/hal-00760098
Contributeur : Véronique Maury Connectez-vous pour contacter le contributeur
Soumis le : lundi 3 décembre 2012 - 14:40:37
Dernière modification le : mercredi 22 décembre 2021 - 11:58:04
Contributeur : Véronique Maury Connectez-vous pour contacter le contributeur
Soumis le : lundi 3 décembre 2012 - 14:40:37
Dernière modification le : mercredi 22 décembre 2021 - 11:58:04
