Communications: radio wave antennas – Antennas – With spaced or external radio wave refractor
Patent
1982-09-29
1985-05-21
Lieberman, Eli
Communications: radio wave antennas
Antennas
With spaced or external radio wave refractor
343909, H01Q 1700
Patent
active
045189668
ABSTRACT:
The invention relates to an adaptive spatial microwave filter for multipolarized antennas and the process of its application. According to the invention, the filter principally consists of two conjugated networks of lines L.sub.1, l.sub.1 ; L.sub.2, l.sub.2 ; . . . of sections of wires loaded with diodes D mounted in series and essentially symmetrically superposed. The lines are passed through by polarizing currents I.sub.1, I.sub.2 . . . which according to selected distribution enables attenuation at reception of certain secondary lobes of the antenna pattern. The invention applies in particular to the localization and neutralization of jammers.
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Lieberman Eli
Societe d'Etude du Radant
Wimer Michael C.
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