Blockage-free space fed antenna

Details Blockage-free space fed antenna Blockage-free space fed antenna

1982-09-30

1985-04-02

Lieberman, Eli

Communications: radio wave antennas

Antennas

With spaced or external radio wave refractor

343376, 343756, H01Q 346

Patent

active

045090556

ABSTRACT:
A space fed antenna with a folded path to reduce the distance between a phased array and the focal point of such array is shown to be made up of: (a) a first plurality of vertically polarized antenna elements incorporated in the phased array; (b) a second plurality of cross-polarized antenna elements disposed to form a polarization-twisting screen at a distance from the first plurality of vertically polarized antenna elements equal to one-third the focal length of such elements; and (c) a third plurality of latching circulators connected between selected pairs of cross-polarized antenna elements in the polarization-twisting screen so that such pairs also may function as a feed array for the space fed antenna.

REFERENCES:
patent: 3836976 (1974-09-01), Monser et al.
patent: 4010471 (1977-03-01), Smith
patent: 4388626 (1983-06-01), Gans

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