A beam sharpened, low sidelobe antenna system

Details A beam sharpened, low sidelobe antenna system A beam sharpened, low sidelobe antenna system

H - Electricity

01

Q

H01Q 21/29 (2006.01) G01S 13/44 (2006.01) H01Q 1/34 (2006.01) H01Q 25/02 (2006.01)

Patent

CA 2258126

A beam sharpened, low sidelobe antenna is obtained by segmenting the antenna to provide two sub-antennas (13, 15), one of which is arranged as an interferometer (15a, 15b). The output signals of the two antennas are added and subtracted to provide sum and difference signals (17). The sum and difference signals and the output signals are then utilized to provide the desired beam sharpened, low sidelobe antenna (22, 24).

Antenne à faisceau affûté et à faible lobe latéral obtenue par segmentation de l'antenne et la création de deux antennes auxiliaires (13, 15) dont une sert d'interféromètre (15a, 15b). On additionne et on soustrait les signaux de sortie provenant des deux antennes pour obtenir des signaux de somme et de différence (17). Lesdits signaux de somme et de différence servent ensuite à obtenir l'antenne désirée (22, 24) à faisceau affûté et à faible lobe latéral.

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